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#1 |
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Oldskool Demo Coder
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Photon's A1700
After testing many approaches and experiencing life-angst several times, I can confirm that nobody will ever be able to fit a 64MB Apollo 1260 in an Amiga 1200 case. Even if you somehow "fold" the top RAM stick or replace its holder. You could manage if you move the turbo card to the back of the machine with some huge flatcable...but...
Figuring I'd have more space if I put the A1200 in an A500 case, I decided to do Jope's A1700 mod. I spent an evening getting out my other (heavily moborevision-patched and with 3.0 roms with busted socket) A1200 mobo and a dirty A500 case full of stickers, to be able to mod my heart out, and started measuring and getting out all the stuff I would need. In two more evenings the mod was done and ready for painting. Progress pics gallery >>here<<. -~- At 3:30AM, CLOSED & All Screws Accounted For: ![]() Inside, there's an A1200 kick 3.1, Apollo 1260 @ 80 MHz with 64MB RAM, an IDE-Fix Express, and a PicoPSU (120W). -~- Here are some conclusions during the process:
All cables are isolated and not fastened in any way, except the thin wires to CIA/keyboard controller. Some stuff I fastened with Velcro pads. Ide-Fix Express was tricky as it sprang up from the chip easily. I hotglued it properly while the computer was on and harddisk was working, making sure I had glue between the metal nozzle and the mobo ![]() CF adapter was tricky. But since the aperture left right of the mobo shield was perfect for a CF card I like this better than more Dremeling of the case! I hotglued a thin plastic plate under the part of the adapter that overlapped the mobo, to isolate the two. Then Velcro pad under the rest of the adapter, and a screw to the plastic case. Had to put 2 nuts under the CF adapter to make it flush with the mobo. Small dab on the mobo, push it flush, hotglue to PCMCIA adapter, fiddle two nuts under the screw hole, wait for glue to cool while holding, screw it to the case, just until the screw head meets adapter PCB. Apart from some tough decision-making (if I put that there then that doesn't fit there or that is impossible... what if...) it was just a matter of soldering and fastening each item in place one after another, and (apart from the power-connector and the CF-adapter) I would say it was a sinch! No real trouble any step of the way. I even fixed the ROM socket and put in 3.1 ROMs while I was at it ![]() -~- That's all I can think of for the moment... if you have questions after watching the pics feel free to ask ![]() This one will get a nice paint job on Monday, I'll check back with pics after that ![]() I will also see if my 12" LCD car TV likes the A1200 output better than the A600's. Still thinking about making it a portable.
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Henrik. Programs Amiga demos, iPhone apps, websites, etc. A1000/512k - A500 2.0/040@28/4M/.5M slowmem/8M/SCSI/CF - A600 portable II 3.1/ACA630/WiFi/CF - 'A1700' 3.1/68060@80/64M/IDE-Fix Express/CF - etc."The difference between PC and Amiga is that 10yo PCs are worth $0. 20yo Amigas are worth a lot, and Amigas that are only 15yo cost a fortune!" If you like Portal 2, try my >> single player and cooperation maps << Last edited by Photon; 27 August 2011 at 18:29. |
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#2 |
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Amibay Mod/Staff
Join Date: Jun 2010
Location: birmingham uk
Age: 37
Posts: 807
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looks a nice bit of hackery there mate
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#3 |
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Oldskool Demo Coder
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Thanks johnim
was more case modding than anything else though, and not even a big job at that. Apollo owners who chose a tower to go 64MB should know it's dead easy, really ![]() Oh no I defied The Manual ![]()
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Henrik. Programs Amiga demos, iPhone apps, websites, etc. A1000/512k - A500 2.0/040@28/4M/.5M slowmem/8M/SCSI/CF - A600 portable II 3.1/ACA630/WiFi/CF - 'A1700' 3.1/68060@80/64M/IDE-Fix Express/CF - etc."The difference between PC and Amiga is that 10yo PCs are worth $0. 20yo Amigas are worth a lot, and Amigas that are only 15yo cost a fortune!" If you like Portal 2, try my >> single player and cooperation maps << |
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#4 |
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Oldskool Demo Coder
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It was quite intoxicating sitting in front of my freshly painted A1700-060 tonight. Especially with a hot soldering station and glue gun next to me and a glass of red (what else?) wine in me to celebrate
![]() ![]() -~- Gallery pics >>here<< -~- There are some things I could have done better, but I'm happy I converted a grimy A500 case with stickers everywhere into something nice that holds a fully expanded Apollo 060 anyway It was a job to remove them all and get all the dirt but mostly the glue residue off... Quick Poll: Does the "Warning!" 50x25 silver sticker on the back go back on? ![]()
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Henrik. Programs Amiga demos, iPhone apps, websites, etc. A1000/512k - A500 2.0/040@28/4M/.5M slowmem/8M/SCSI/CF - A600 portable II 3.1/ACA630/WiFi/CF - 'A1700' 3.1/68060@80/64M/IDE-Fix Express/CF - etc."The difference between PC and Amiga is that 10yo PCs are worth $0. 20yo Amigas are worth a lot, and Amigas that are only 15yo cost a fortune!" If you like Portal 2, try my >> single player and cooperation maps << Last edited by Photon; 30 August 2011 at 22:54. |
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#5 |
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Registered User
Join Date: Apr 2011
Location: birmingham
Age: 44
Posts: 1,949
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i like this alot it gives it a personal touch that makes it different from the others.
it looks like a sports car vroooom.very nice photon. ![]() |
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#6 |
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Targ Explorer
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Nice one looks like a Manchester United A500! ( That may or may not be a good thing
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A1200D Blizzard 1230 MKIV 50Mhz 32mb RAM, 4GB HDD, CWB Full. AmigaOne X1000 _/-| |\/| | (-, |-\_
Last edited by DDNI; 31 August 2011 at 11:29. |
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#7 | |
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Oldskool Demo Coder
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Quote:
Who knows, maybe that 100 MHz problem will be solved and then I can vroom while I vroom... ![]()
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Henrik. Programs Amiga demos, iPhone apps, websites, etc. A1000/512k - A500 2.0/040@28/4M/.5M slowmem/8M/SCSI/CF - A600 portable II 3.1/ACA630/WiFi/CF - 'A1700' 3.1/68060@80/64M/IDE-Fix Express/CF - etc."The difference between PC and Amiga is that 10yo PCs are worth $0. 20yo Amigas are worth a lot, and Amigas that are only 15yo cost a fortune!" If you like Portal 2, try my >> single player and cooperation maps << |
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#8 |
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Bawbag.
Join Date: Mar 2008
Location: Chicago, USA
Posts: 343
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Very nice! Congratulations on your souped up Amiga!
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A4000/060 w OS 3.9 |
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#9 |
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Registered User
Join Date: Apr 2011
Location: birmingham
Age: 44
Posts: 1,949
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#10 |
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Oldskool Demo Coder
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Thanks, well next is finding thin chrome stripe(s), might make a chrome grille of the plastic grille
or it may look overkill and tacky, I dunno. Original plan was to have just one thin one across near or over the black stripe. (Chrome paint is way too easy to smudge and covering it with laquer makes it matte.) We'll see. There's a small mod I want to do, so I'll open it up when I've used it for a while and also replace the round harddrive led with a level 7 button and use the floppy led as harddrive led (and use a red led in its place, red power led looks really good with the red paint right now).
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Henrik. Programs Amiga demos, iPhone apps, websites, etc. A1000/512k - A500 2.0/040@28/4M/.5M slowmem/8M/SCSI/CF - A600 portable II 3.1/ACA630/WiFi/CF - 'A1700' 3.1/68060@80/64M/IDE-Fix Express/CF - etc."The difference between PC and Amiga is that 10yo PCs are worth $0. 20yo Amigas are worth a lot, and Amigas that are only 15yo cost a fortune!" If you like Portal 2, try my >> single player and cooperation maps << |
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#11 | |
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Registered User
Join Date: Apr 2011
Location: birmingham
Age: 44
Posts: 1,949
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Quote:
dont worry about what other peaple think,as what you do cosmeticly will only matter to you(i think it looks great). ![]() |
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#12 |
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Oldskool Demo Coder
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Not feeling comfortable about the A500 keyboard pushing on the Apollo's RAM, I nipped off every pin on the keyboard PCB, carefully filed the shart points of the cutoff pins, and used two thin vinyl sheets in place of the plastic sheet that was screwed on it before. I also Dremeled the topmost edge of the RAM stick PCB saving perhaps 0.3 mm... :P
I swapped HDD/Floppy led signals and replaced the green floppy LED on the keyboard with a nice red LED from a spare broken A500 keyboard, and connected a brand spanking new Thai black Level 7 pushbutton to the pins on the Apollo that I measured were connected to R953A,B,C on the underside of the mobo. (I hate thin wires on the underside, if they break loose, um, all hell can break loose )These red LEDs look abso-lutely gorge-ous with this red paint, I can tell you I can also share that choosing red makes slight yellowing on white keys much less noticable. Highly recommended ![]() Decided to protect it better, so I took the innards out and put 4 thin layers of clear coat on. Big discovery was that it actually doesn't change the matteness of the paint much! (I thought it would look all glossy.) Also highly recommended. (All products were from the plastic car bumper stuff shop, brand is 'MOTIP'. A bit of warning tho - remove the plastic ring under the nozzle, and eco-friendly/non-gas spray action is a bit uneven, so there are a few imperfections in the paint job. 3x400ml will only just cover 3x4 thin layers of primer/paint/laquer for the A500 case, so don't waste any of it!) Tried to make the plastic grille chrome with superthin alu tape (for ventilation pipes) and chrome bookcover adhesive, but it just didn't look good on. Just a thin car chrome stripe on the black stripe will probably look better, I'll try to find one on Monday. So now I have made perfect use of resources - A500 case and keyboard that can handle superfast typing with patched old mobo+fast Apollo inside. I even made use of the extra CF adapter with lame 3,5" socket - since IDE-Fix Express has a 3.5" version of Port 0. And nice white A1200 keyboard is in a complete white A1200 case with latest revision motherboard looking class ![]() And a 1084S (strange how dreamy graphics look on it!) with a decent sound system on a nice 'computer-table' behind the desk makes ample room for the A500 case to spread out its lovely body... ![]() (Stickers on keys are because I never seem to get hold of keyboards with US layout ;] Will order another sheet of these to put on number keys, already used up 3 of these nice sticker sheets from ebay.)
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Henrik. Programs Amiga demos, iPhone apps, websites, etc. A1000/512k - A500 2.0/040@28/4M/.5M slowmem/8M/SCSI/CF - A600 portable II 3.1/ACA630/WiFi/CF - 'A1700' 3.1/68060@80/64M/IDE-Fix Express/CF - etc."The difference between PC and Amiga is that 10yo PCs are worth $0. 20yo Amigas are worth a lot, and Amigas that are only 15yo cost a fortune!" If you like Portal 2, try my >> single player and cooperation maps << |
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#13 |
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I hate potatos and shirts
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I demand to see how's done from the inside!
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Amigan since 1989 Known drunk since 1982 (don't know quite well, I was drunk) 13 Amigas at home Finally a Z3 one! I'll stick with 'Cachaça do Inter' for this week: Chivas gives headaches! :D |
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#14 |
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Oldskool Demo Coder
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Hey rkauer
Check the gallery link in the first post. Nothing really special inside, just Dremel and cut and fasten loose things. Lots of Y-power-cables instead of soldering. Messy, but allows easy changes. It doesn't look much different inside now, biggest change is the fan-pot sticking out of the floppy slit (Velcro there too) :P and as mentioned I modded the keyboard to not press on the Apollo memory.
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Henrik. Programs Amiga demos, iPhone apps, websites, etc. A1000/512k - A500 2.0/040@28/4M/.5M slowmem/8M/SCSI/CF - A600 portable II 3.1/ACA630/WiFi/CF - 'A1700' 3.1/68060@80/64M/IDE-Fix Express/CF - etc."The difference between PC and Amiga is that 10yo PCs are worth $0. 20yo Amigas are worth a lot, and Amigas that are only 15yo cost a fortune!" If you like Portal 2, try my >> single player and cooperation maps << Last edited by Photon; 07 September 2011 at 21:10. |
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#15 |
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Junior Member
Join Date: Sep 2001
Location: No(R)Way
Age: 31
Posts: 2,201
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Very cool mod Photon !!
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Mac Mini 1,5ghz + powerbook 1,67 ghxz- MorphOS 3.1 -- It rulez !! _ Amiga 4000/060 - Whdload - RDesktop - WookieChat - All Supported. 1200/060/PPC/Indivision - AMIGA 4 EVER |
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#16 |
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The 1 who ribbits
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love the colour
![]() like the mod ![]()
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When in dought RIBBIT .... If it dos`t work hit it with a hammer, if that dos`t work get a bigger hammer.......... Have U scen my sanity Pill`s . . . . . . . . . . . . . . // This Years Software on Last Years Hardware \\//-- Amiga -- |
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#17 |
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Oldskool Demo Coder
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Thanks guys \o/
Spent some time trying to get the Apollo 1260 to run at 100MHz but arrived at the conclusion that my 120W PicoPSU doesn't deliver enough current on 3.3V, and I want to keep the PicoPSU for movability and style and quietness. The 160W PicoPSU could just barely do it, maybe I will get one of those. Right now I'm thinking about modding a spare A600 case aluminium-label to read "C= A1700" ![]() Idea is to cover the C= metal with hotglue or play-doh or similar, spraypaint the label black, let it dry, put on rub-on letters, spraypaint it red, remove letters, clear coat. Ie. black letters on red and put it on the black stripe. But I'm not at all sure, it could be one C= logo too many and might not look good. Edit: Just tested the crappy 12" car LCD TV with it, hoping that somehow it would like the A1200's composite signal more than the A600's. No such thing, blurflicker city. Crappy Hong Kong crap is crappy. Oh well ![]()
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Henrik. Programs Amiga demos, iPhone apps, websites, etc. A1000/512k - A500 2.0/040@28/4M/.5M slowmem/8M/SCSI/CF - A600 portable II 3.1/ACA630/WiFi/CF - 'A1700' 3.1/68060@80/64M/IDE-Fix Express/CF - etc."The difference between PC and Amiga is that 10yo PCs are worth $0. 20yo Amigas are worth a lot, and Amigas that are only 15yo cost a fortune!" If you like Portal 2, try my >> single player and cooperation maps << Last edited by Photon; 08 September 2011 at 23:46. |
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#18 |
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Registered User
Join Date: Apr 2011
Location: birmingham
Age: 44
Posts: 1,949
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i see you like the demo scene,have you had a look at "starstruck","rain",magia",perfectcircle".etc very nice in aga.
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#19 |
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Junior Member
Join Date: Apr 2002
Location: Holland
Age: 30
Posts: 266
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awezome! Yeah demosceners all around here
- Who went to evoke? Who's going to Revision?Oh and a big fat +1 for the mod.. looks great! |
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#20 |
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Registered User
Join Date: Apr 2011
Location: birmingham
Age: 44
Posts: 1,949
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oh before i forget,if your really bothered about the slight yellowing you can always pop the keys off and leave them to bathe in a tub of H202 for a couple of days.(not that it matters).
i use it here at 35 percent neat.works great. just dont get any on your hands. regards roy. |
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#21 |
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Oldskool Demo Coder
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Nah, it looks quite ok. And of course I've watched those demos before, and a lot more these last weeks, and played 3D games, and...
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Henrik. Programs Amiga demos, iPhone apps, websites, etc. A1000/512k - A500 2.0/040@28/4M/.5M slowmem/8M/SCSI/CF - A600 portable II 3.1/ACA630/WiFi/CF - 'A1700' 3.1/68060@80/64M/IDE-Fix Express/CF - etc."The difference between PC and Amiga is that 10yo PCs are worth $0. 20yo Amigas are worth a lot, and Amigas that are only 15yo cost a fortune!" If you like Portal 2, try my >> single player and cooperation maps << |
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#22 |
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Stay a while,Stay Forever
Join Date: Mar 2005
Location: UK London
Age: 30
Posts: 1,308
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Photon what is that joystick on the left in your picture? I'm gonna get me one of those if they are still available to buy somewhere?
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#23 |
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That's a black Suncom TAC-2.. Very easy to find.
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The X-Copy shrine! |
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#24 |
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Oldskool Demo Coder
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Yep, with a blade switched key from a 70s terminal keyboard as left fire button. Normally the left one looks like the right one. This gives several benefits
even if the original button is great for many games, better than most joysticks of its era actually.
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Henrik. Programs Amiga demos, iPhone apps, websites, etc. A1000/512k - A500 2.0/040@28/4M/.5M slowmem/8M/SCSI/CF - A600 portable II 3.1/ACA630/WiFi/CF - 'A1700' 3.1/68060@80/64M/IDE-Fix Express/CF - etc."The difference between PC and Amiga is that 10yo PCs are worth $0. 20yo Amigas are worth a lot, and Amigas that are only 15yo cost a fortune!" If you like Portal 2, try my >> single player and cooperation maps << |
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#25 |
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The TAC-2's buttons were always its achilles heel.
As a kid I spent lots of time filing down the bronze rings to get rid of the oxide and have them make proper contact. Then I saw the light, bought a competition pro and never looked back. ;-) But recently I heard a good trick that keeps the TAC-2 buttons working for longer. Take some copper paste or arctic silver heat sink compound, and smear a thin layer of that on the bronze rings. Problem no more and you can actually fire reliably with the TAC-2. :-D
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The X-Copy shrine! |
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#26 |
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Needs a life
Join Date: Jan 2008
Location: England
Posts: 1,564
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Nice Job! I might have to look at doing that if I ever do go for another 1260... The lack of RAM on the desktop version frustrated me immensely as I couldn't get many 060 demos to work with 32MB.
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#27 | ||
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Oldskool Demo Coder
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Quote:
, less 'key travel' and all that... but what usually happens is you can't precision-tap to make sure 100/100 presses are hits. It's usually very good enough for when fire needs to be 'held' rather than tapped, such as in karate games or whatever (cos the joystick is just as tight and nice). But shooters will often leave you unsatisfied and cramped. Another reason is I had a keyboard key that fit snugly in the hole and was also excellent ![]() Quote:
Another reason was making max use of the turbo card, since it doesn't allow just the one 64MB stick.
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Henrik. Programs Amiga demos, iPhone apps, websites, etc. A1000/512k - A500 2.0/040@28/4M/.5M slowmem/8M/SCSI/CF - A600 portable II 3.1/ACA630/WiFi/CF - 'A1700' 3.1/68060@80/64M/IDE-Fix Express/CF - etc."The difference between PC and Amiga is that 10yo PCs are worth $0. 20yo Amigas are worth a lot, and Amigas that are only 15yo cost a fortune!" If you like Portal 2, try my >> single player and cooperation maps << |
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#28 |
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Oldskool Demo Coder
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OK, after another go at 100 MHz, really going all out and giving it all I've got, it turns out overclocking Amiga is very similar to overclocking a PC.
I cleaned the edge connector, and everything socketed on the Apollo including SIMMs and their sockets. Went through 4 ATX PSUs to get it to even boot, a 500 Watter with a 5V reading of 5.00V or higher under load did it. In retrospect, it really was quite linear. Enough over-amperage (~18-20A) on the 3.3V to make the CPU boot without RAMs, and a good enough 5V for it to work with RAMs. After that, it's all about the cooling to make the sensitive CPU like it for long enough. Everything is nicely set up inside, with two thick leads for 5V and 3.3V. Swapped the 47uF cap on the board and added one same over 3.3V. There's really nothing left to improve as far as the hookup is concerned. Result: 1.5 minutes of full CPU load. Set CPU60 options to "worst" (slowest) and it runs forever. This was after swapping the cooler for a larger, brand new pure copper cooler for PC gfx cards. Potential issues ruled out by testing:
![]() So basically this rig now has an ATX connector at left and I moved the CF drive to the floppy slit, and I can swap oscillator and PSU at whim for further testing. >> Gallery here << The basic conclusion is that my specific 68060R6 is the same as all the other such CPUs and would take 100MHz with a huge cooler that fits in a tower but not in an Amiga case. And so that closes it for me, as this will be another BYOC demoparty Amiga. Anything up to 95 MHz should be fine in my A1700, 96+ is where it gets sensitive and magical whether it works or not. (Ie. gets sensitive and must not get one degree over room temp, etc.) Just plugged in the 120W PicoPSU and turned the cooler to minimum RPM, and it's fast and almost inaudible. That's the way, uh-huh, uh-huh, I like it... ![]() Still, you can bet I'll try to get a 95 MHz oscillator asap and give that a go... ![]() -~- This really would have taken much longer without Roy Bates's experiences and help, so a big thanks to him! ![]() -~- Also made a nice little stand for the 13" LCD TV for portability, and I won't need to bring the 12V PSU for it obviously. "That'll do nicely." (c) Han Solo. ![]()
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Henrik. Programs Amiga demos, iPhone apps, websites, etc. A1000/512k - A500 2.0/040@28/4M/.5M slowmem/8M/SCSI/CF - A600 portable II 3.1/ACA630/WiFi/CF - 'A1700' 3.1/68060@80/64M/IDE-Fix Express/CF - etc."The difference between PC and Amiga is that 10yo PCs are worth $0. 20yo Amigas are worth a lot, and Amigas that are only 15yo cost a fortune!" If you like Portal 2, try my >> single player and cooperation maps << Last edited by Photon; 27 November 2011 at 21:53. |
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#29 |
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Junior Member
Join Date: Apr 2002
Location: Holland
Age: 30
Posts: 266
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insane.... :P
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#30 |
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Stuck in 1985
Join Date: Nov 2006
Location: Amigaville
Age: 35
Posts: 2,839
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hows about some water cooling?
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Memotech MX512 with optional Kelly LeBrock barbie doll generator... |
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#31 |
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Oldskool Demo Coder
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It has been suggested Paul_s
![]() Well, I haven't really done anything, just did a lot of tests and pa pic update. The tape bits inside were mostly for quick fastening of cables. I don't mind it, better than trying to do a too-tidy wiring scheme and have to redo it when you get another idea. But the white tape on the Apollo is gone, was just there to protect the 3.3V/5V during testing. I'm all about solid builds using techniques at first glance considered hacky and messy. Just take the ATX connector, for example. It will sit there forever and fits perfectly (well nip off 2mm of one RF shield stand) because of how I hotglued it. Why make a neatly filed hole in the back and order some rare ATX female that can be screwed to the case, or some craaaazy sh*t like that? It won't ever get done, it will be worse, and look better. These are the PSUs I tested in 100 MHz mode and the results (in bootability order): Code:
PSU Limit** 3.3V current 5V acc Result with ram Result without ram 120W (Pico) 49.8W 6A 4.95V No boot No boot* 250W other 120W 20A 4.82V No boot Boots fine 500W Fortron ? 24A 4.85V No boot Not tested, likely fine 250W Dell 150W 18A 5.05V Almost to "devs:pref..." Boots fine 145W Fortron 83W? 10A 5.08V Past "devs:preferences" Boots fine 600W Loudmofo ? 20A 5.13V 1.5 minutes stable Not tested, likely fine *One boot to just after devs:Preferences but then No Boot every time. ** Watt load limit shared for both voltages 3.3V and 5V. This affects max Ampere on both. Note: 5V acc is measured over memory chips while running. 3.3V current is subject to the Watt load limit and may not be as high if the 5V draw is big, so take those with a grain of salt. Thoughts on the table:
I'm still not sure. Might be that every single PSU shares a load limit between 5V and 3.3V and 350W and up makes the 3.3V amperage go over 10 real amps or something.And the 1.5 minutes was with the CPU running under 100% with Best settings. And that's nothing, of course. It needs to do that day in and day out. I've ordered 2x92 MHz and 2x95 MHz crystals Roy, let's see if EuroQuartz takes such small orders (and sends them to Sweden!!)
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Henrik. Programs Amiga demos, iPhone apps, websites, etc. A1000/512k - A500 2.0/040@28/4M/.5M slowmem/8M/SCSI/CF - A600 portable II 3.1/ACA630/WiFi/CF - 'A1700' 3.1/68060@80/64M/IDE-Fix Express/CF - etc."The difference between PC and Amiga is that 10yo PCs are worth $0. 20yo Amigas are worth a lot, and Amigas that are only 15yo cost a fortune!" If you like Portal 2, try my >> single player and cooperation maps << |
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#32 |
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Registered User
Join Date: Apr 2011
Location: birmingham
Age: 44
Posts: 1,949
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ok this isent going to be easy to understand,but ill try to explain how i see it.
when the psu is turned on, in those first few miliseconds all the rails get power. then the cpu draws more than normal,so the 3.3 volt detect senses more load,and outputs more amps on the 3.3 volt rail,(this is fed back to the psu) at this point the 5 volt rail drops by 5% and the 3.3 volt rail goes back to normal.(there is a spike at startup) this is where it gets interesting,the supply does not stabalise properly and the 5 volt rail stays 5% under voltage=no boot or instable system. as the memory is connected to the 5 volt rail,it fails at startup because its at its lower end of the parts tollarences. (the supply only detects highs not lows.) ok this is different to how it works on mine,i have re-wired mine for use as a at supply,so at startup,the psu puts out max power at a constant voltage all the time(mine has no sense wire i removed it when i converted the supply.) plus mine is 400watts. also to confuse matters even more this revision 060 works between 95 and 105mhz,this is confirmed. also because of the shrink in mask it also fails at a lower temprature,if youve had a revision 1 you know how hot it gets at 50 mhz,so this makes sense as the later masks run cooler they also fail at a cooler temprature. it only starts to get hot if its fpu is in use or its on for long periods of time. (active cooling is a must at these frequencys,heatsink and fan,12volts i suggest something like a 486 type cooler,vga type should work,but not passive,it wont work for more than 15 mins tops and thats if it runs at these speeds.) i hope ive made enough sense for everyone to understand. |
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#33 |
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Oldskool Demo Coder
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Agree that some PSUs go strangely low on 5V under load, maybe more while having a bigger load on 3.3V.
The CPU is really not a problem as you say, and agree it seems to have a more sensitive temp range even when you feel it should be able to handle "finger warm"... the CPU is not a problem because you just add a good active CPU/gfx PC cooler. It's only a problem for me because I can't fit such a cooler in my case ![]() (I think what you're looking for is actually something like water cooling: small plate (big flange won't dissipate heat fast enough), copper pipes on plate leading the heat away to bigflange (tm) which has thin fingers that a good fan blows on. A big metal clump just doesn't get the heat away fast enough. After the heat is moved to another place you can cool it off at a moderate pace. A Peltier should actually be optimal for this kind of low temp sensitivity, but see this.) About the spike: every time I've not gotten a boot-up, I've always Ctrl-A-A'd. Is there a second spike on reset?? Sounds weird. But yes, since most (all?) PSUs seem to share a limit for 5V+3.3V there is something going on there but I just can't explain why the reset doesn't work. Be happy to mod a PSU according to instruction to test the spike thing. Just cut the brown wire going into one of the orange +3.3V pins? BTW, got word back from Swe reseller of Euroquartz, they want $22 per oscillator. Hm... maybe I'll order one 95MHz if the PSU mod doesn't work out. ![]()
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Henrik. Programs Amiga demos, iPhone apps, websites, etc. A1000/512k - A500 2.0/040@28/4M/.5M slowmem/8M/SCSI/CF - A600 portable II 3.1/ACA630/WiFi/CF - 'A1700' 3.1/68060@80/64M/IDE-Fix Express/CF - etc."The difference between PC and Amiga is that 10yo PCs are worth $0. 20yo Amigas are worth a lot, and Amigas that are only 15yo cost a fortune!" If you like Portal 2, try my >> single player and cooperation maps << |
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#34 | |||||
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Registered User
Join Date: Apr 2011
Location: birmingham
Age: 44
Posts: 1,949
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Quote:
Quote:
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if the 5 volt rail drops below 4.85 volts,wouldnt you agree. ![]() but then again if your getting a green dim power light thats something else normaly. Quote:
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i must admit that the supplier i used years ago(for xtals) doesent seem to exist anymore(i suspect they closed shop),but if you dont mind paying the money it doesent matter as you only want one.its a shame as they where reletively cheap,and built them to any frequency.(plus they where freindly over the phone and very helpfull) Last edited by prowler; 30 November 2011 at 00:57. Reason: Fixed quotes. |
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#35 |
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Oldskool Demo Coder
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Actually I made both leds red to match the case, looks royal
![]() At $22 a pop, I ordered a 95MHz one from the Swe retailer, let's see if they take the order. ![]() Oh, I thought Peltier worked like fridges, ie. you give them juice and they lower the temp. Hmkay. I guess that's out then. Anyway I'll cut the wire and see if there's a difference. That should make the 5V 5.00V+ stable then? I'm thinking it still won't work as I had 4 PSUs at > 5.00V after boot and it still wouldn't go fully into startup-sequence. Last edited by Photon; 30 November 2011 at 02:02. |
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#36 |
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Registered User
Join Date: Mar 2004
Location: finland
Posts: 867
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#37 |
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Registered User
Join Date: Dec 2007
Location: Dereham, United Kingdom
Age: 39
Posts: 410
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Yeah they heat exchange dont they? Feel around the back of your fridge...
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Jon www.jonmusic.co.uk Amigas currently owned: Amiga A1200, 130mb RAM, 060/66mhz, 4gb HDD Amiga 1200, 6Mb RAM, 030/42mhz, 4gb HDD Amiga A600, 2Mb Chip, 6gb HDD |
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#38 |
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Registered User
Join Date: Apr 2011
Location: birmingham
Age: 44
Posts: 1,949
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yes but they also generate even more heat in the transfer(upto THREE times)and use even more power,thats why to use them effeciently you would need water cooling.
as a side effect they also make condensation when they are not running.(straight after use) hmm,i might make a water block and radiator,i can make one pretty easely.(just to play around with) |
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#39 |
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Oldskool Demo Coder
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Since I just repaired some Joytech screens, I ditched the BYOC13S ('bring your own crap 13" screen' :P) idea and made the A1700 a portable.
Well, luggable. But it's only a bit wider than the A600 portable ![]() At 0:45AM, CLOSED & All Cats Accounted For: ![]() Supposed to show DPaint with Earth.hireslace in antialiased-interlace thunderstable 640x480... C1084S looks over its shoulder, like an envious bigger brother... And >> Gallery pics They're all as bad as this one but... I simply had a thin but rigid Alu L-bracket that I painted matte black to match the screen. (Tried a silver Joytech LCD first and it looked really sharp on its own. But the black LCD just matched the matte black line on the A500 case so well that it just had to be a black one.) I lined it up with 2 screw holes already present in the case, made some marks and drilled holes. Cut the 'overlap flange' of the lower case half and filed the top half and stuck the bracket between the halves. Fitted the screen so it would line up and twisted the PS2 Slim attachment screws of the LCD against the bracket to make marks and drilled 2 more holes. Glued 2 M3 nuts to the holes, just to hold them in place enough so I could use pliars and a screwdriver to fasten the LCD to the bracket, and done. So now this baby is waiting for a 95 MHz oscillator (no, they never got back to me about the order of 1xoscillator...) and I'm also going to internalise some useful stuff like my Nokia speakers and maybe a headphone jack - just because I have the space, and to remove the need for bringing anything but A1700p + PSU to South Meet after Xmas. ![]() ![]() ![]() ![]() ![]() ![]()
__________________
Henrik. Programs Amiga demos, iPhone apps, websites, etc. A1000/512k - A500 2.0/040@28/4M/.5M slowmem/8M/SCSI/CF - A600 portable II 3.1/ACA630/WiFi/CF - 'A1700' 3.1/68060@80/64M/IDE-Fix Express/CF - etc."The difference between PC and Amiga is that 10yo PCs are worth $0. 20yo Amigas are worth a lot, and Amigas that are only 15yo cost a fortune!" If you like Portal 2, try my >> single player and cooperation maps << |
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#40 |
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Registered User
Join Date: Apr 2011
Location: birmingham
Age: 44
Posts: 1,949
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they dident get back to you?,have you paid for it online,if you have you should give them a ring and ask if it been dispatched.all i know is they have a minimum order.
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