My Amiga 2000 (Warning: MANY pictures)

8bitbubsy · 08 June 2011, 23:33

Hi, I took some pictures of the inside of my Amiga 2000, but sadly they turned out blurry and weird. I have no real camera except for this one on my older Sony Ericsson mobile phone...

Let's begin!

This resistor mod is one of several steps from the 4.3 to 4.5 upgrade procedure.

Kicking her up to a total of 2MB chip RAM with the MiniMegi Chip! (I already did the 512kb fast/chip to 1MB chip RAM mod).

The seller already cut and binned the old battery, so I cleaned up and installed a brand new one I bought from AmigaKit.

Again, I am very sorry for the picture quality. If I only had a better camera.

Buster 5721 rev A

ECS Denise and Paula having a cup of tea together. They do not talk much, given they do two completely different jobs.

My Blizzard 2060 with an XC68060RC50 rev 1 and 96MB RAM.
The fan and heatsink is actually not needed, but this CPU gets extremely hot so I want to take good care of it!

My lovely Picasso II spiced up with 2 megs of graphics memory and a custom installed heatsink (yes, that chip does get very hot!).
Notice one cap reinstall that failed massively, below the Village Tronic text... I managed to destroy the through hole trace, but I found the same trace above the cap.
I also removed the annoying resistor to prevent +12v from being sent to a GND pin on the newer VGA monitors.

The heatsink installed, in a totally clumsy way. Look how it's not in the middle at all. Anyways, I cleaned the chip and the heatsink, added a little drop of thermal paste, then I used super glue in the corners to securely seaten the heatsink. There's no way there's any huge gaps or chances for it to fall off, I've checked. The heatsink seems to transfer the heat very well.

I got this 4.5GB IBM SCSI 68 pin hard drive (and the >SCSI 50 pin adapter) from rare_j on this forum. Thanks a lot buddy, it works great!

That's it for today, I promise to take some more pictures of it in action, and some pics of all the cards and stuff installed.

8bitbubsy · 09 June 2011, 06:22

So...

You all know that the most common MiniMegi Chip comes with an NTSC Agnus... Well, I want a PAL Agnus on it but the IC is soldered to the board!
When you were young your parents said "Sometimes you can't have what you want, accept that!". Well, does 8bitbubsy think that's OK? No!
I might be a young annoying kid, but that does not mean I can't solder.

1x 8bitbubsy + 1x 8375 PAL Agnus + 1~ hour + heatgun + SMD flux + isopropanol alcohol + soldering iron + desoldering pump =

Cool story bro, but does it work? Of course it does:

NovaCoder · 09 June 2011, 06:43

Looking good, I think ScummVM ECS would run pretty well with that 060

LTAC · 09 June 2011, 09:06

@8bitbubsy: nice AMIGA 2000 with PicassoII & 060! Congratulations.
An 060 CPU on an A2000: it's my dream!

mfilos · 09 June 2011, 10:12

Damn that's a fine piece of Amiga 2000 mate!
Congratz and thanks for sharing some internal pr0n with us. Keep us posted.
MiniMegi Chip hack was indeed a wonderful mod! Thumbs up for a clean job.
Blizzard 2060 on A500/A2000 is always an interesting thing to watch

duga · 09 June 2011, 10:52

Beautiful.

Bloodwych · 09 June 2011, 11:01

Looking good!!!

Don't see many hardware threads on the A2000, so really good to see. As someone said, 060 on an A2000. Really special setup you have there!

Thanks for posting.

Hewitson · 09 June 2011, 11:05

Very nice machine, don't understand why you replaced the battery with one that's prone to leak though.

fitzsteve · 09 June 2011, 12:02

Nice work 8bitbubsy

Thanks for sharing the pics, as Bloodwych says we don't see many A2000's upgraded like yours.

Is this the faulty B2060 you bought at Amibay? What was wrong and how did you fix it?

Awesome stuff anyways

Steve.

cosmicfrog · 09 June 2011, 12:26

Thats great for a v4 Mobo

er you don`t want to swap your Blizzard 2060 for my gvp 040 hehehehehhehe NOT

8bitbubsy · 09 June 2011, 16:11

Thanks for all the good comments!

Hewitson: Truth is, I don't even know myself why I did that. I'll get a diode and a coin battery holder soon, to do the proper job.
EDIT: So I read abit about this, and it seems that the coin battery mod with its diode drops to lower than the RTC wants. I'll stay with the 3.7v NiMh battery, it's much newer than the older ones. I guess this one won't leak until like 8 years or so.

fitzsteve: Yes it's the faulty one I bought at amibay. All I did was to resolder some rather dry solder points, and to my surprise it works just fine and is rock stable.

rare_j · 10 June 2011, 01:22

Really nice a2000, nice and clean and well upgraded!

Nice mods too. Thanks for posting!

Hewitson · 10 June 2011, 11:44

The voltage drop should be fine if you use a schottky diode. Rechargable coin batteries are also available.

Loedown · 10 June 2011, 11:52

I had a look at the specs for the clock chip and with just a normal BAW56 or 1N4148 and taking into consideration the initial voltage on the battery isn't 3.6 volts I calculated the circuit would last some 10 years without needing a replacement or something ridiculous like that.

From memory only;

RP5C needs 2.2 or 1.7V for normal off state operation, BAW56 vdrop around 0.6V, normal state of CR2032 is around 3.45V at initial purchase, RP5C current draw in nA range in off state.

CR2032 voltage drop off chart would be gradual decline and then sudden decline like most non rechargable batteries, only NiCads and NiMH batteries are fairly constant and then fall off rapidly

8bitbubsy · 24 July 2011, 19:55

The CPU socket on my Blizzard 2060 started to wear off and not get good contact, so I decided to desolder it and solder in an MC68060RC50 71E41J rev 6. That means no heatsink/fan needed at 50MHz.
(WARNING! Do not attempt to do this if you're tired or do not have the energy. You are warned, I almost collapsed the moment I got finished

)

Pictures (a lot of flux residue even after cleaning, so some dust got attached):

You might see some damage on the through-holes, but it actually makes very good contact and I checked every point before I said myself done. It works like a dream.

Next up:
* Buying an SCSI->IDE solution, then use a CF card
* Buying an Indivision ECS
* Buying a Zorro sound card (maybe)

.

Rebel-CD32 · 24 July 2011, 22:39

Hey Bubsy mate, bloody awesome A2000 you have there, I'm quite envious. I'm not sure if you already know about them, but I recently bought a SCSI card reader which can mount up to five different cards at a time, including two CF cards (using the PCMCIA CF adapter in the PCMCIA port of it, which is only of any use with card readers anyway). You can hot-swap them too provided they're not being used as the boot disk, which I believe IDE doesn't support, so I'm not sure how that would go over the SCSI adapter but I think this option is neater anyway. We were using it on a friend's A2091 card with no problems, and it also works on my GVP HC+8. I just hope you only have one floppy drive in there because it fits in a 3.5" bay.

Check them out here: http://a4000t.com/store/index.php?ma...roducts_id=184

8bitbubsy · 25 July 2011, 01:13

Ordered one now.

This is great, now I don't need any CD-ROM. Just turn off the computer, populate LUN0 with PCMCIA<->CF, then I can access file that way, and use LUN1 (CF) as HDD.

bLAZER · 25 July 2011, 01:43

Quote:

Originally Posted by 8bitbubsy

.

Hey, that's a mighty fine desktop wallpaper you got there

8bitbubsy · 01 September 2011, 16:43

Udates!

My A2000 has now got an SCSI<->CF card reader, which means no audible HDD noise.
Also got myself a Picasso IV with the scandoubler PCB in place (though I cut it off and plugged it in my A2000 video slot). My A2000 is lightning fast now, it kicks a lot of butt.

Time for some badly taken (as usual) pics!

Not much Chip RAM used?

1024x768 16-bit, need to find a cooler wallpaper that is full screen and not 800x600...

Playing ADoom with a good frame rate!

tomse · 01 September 2011, 19:40

@bubsy you've got yourself a pretty great setup there :-)
you just need a deneb and a indivision ;-)

08 June 2011, 23:33	#1
8bitbubsy Registered User Join Date: Sep 2009 Location: Norway Posts: 1,715	My Amiga 2000 (Warning: MANY pictures) Hi, I took some pictures of the inside of my Amiga 2000, but sadly they turned out blurry and weird. I have no real camera except for this one on my older Sony Ericsson mobile phone... Let's begin! This resistor mod is one of several steps from the 4.3 to 4.5 upgrade procedure. Kicking her up to a total of 2MB chip RAM with the MiniMegi Chip! (I already did the 512kb fast/chip to 1MB chip RAM mod). The seller already cut and binned the old battery, so I cleaned up and installed a brand new one I bought from AmigaKit. Again, I am very sorry for the picture quality. If I only had a better camera. Buster 5721 rev A ECS Denise and Paula having a cup of tea together. They do not talk much, given they do two completely different jobs. My Blizzard 2060 with an XC68060RC50 rev 1 and 96MB RAM. The fan and heatsink is actually not needed, but this CPU gets extremely hot so I want to take good care of it! My lovely Picasso II spiced up with 2 megs of graphics memory and a custom installed heatsink (yes, that chip does get very hot!). Notice one cap reinstall that failed massively, below the Village Tronic text... I managed to destroy the through hole trace, but I found the same trace above the cap. I also removed the annoying resistor to prevent +12v from being sent to a GND pin on the newer VGA monitors. The heatsink installed, in a totally clumsy way. Look how it's not in the middle at all. Anyways, I cleaned the chip and the heatsink, added a little drop of thermal paste, then I used super glue in the corners to securely seaten the heatsink. There's no way there's any huge gaps or chances for it to fall off, I've checked. The heatsink seems to transfer the heat very well. I got this 4.5GB IBM SCSI 68 pin hard drive (and the >SCSI 50 pin adapter) from rare_j on this forum. Thanks a lot buddy, it works great! That's it for today, I promise to take some more pictures of it in action, and some pics of all the cards and stuff installed. Last edited by 8bitbubsy; 08 June 2011 at 23:53.

09 June 2011, 06:22	#2
8bitbubsy Registered User Join Date: Sep 2009 Location: Norway Posts: 1,715	So... You all know that the most common MiniMegi Chip comes with an NTSC Agnus... Well, I want a PAL Agnus on it but the IC is soldered to the board! When you were young your parents said "Sometimes you can't have what you want, accept that!". Well, does 8bitbubsy think that's OK? No! I might be a young annoying kid, but that does not mean I can't solder. 1x 8bitbubsy + 1x 8375 PAL Agnus + 1~ hour + heatgun + SMD flux + isopropanol alcohol + soldering iron + desoldering pump = Cool story bro, but does it work? Of course it does: Last edited by 8bitbubsy; 09 June 2011 at 06:28.

09 June 2011, 06:43	#3
NovaCoder Registered User Join Date: Sep 2007 Location: Melbourne/Australia Posts: 4,408	Looking good, I think ScummVM ECS would run pretty well with that 060 Last edited by NovaCoder; 28 July 2011 at 06:23.

09 June 2011, 16:11	#11
8bitbubsy Registered User Join Date: Sep 2009 Location: Norway Posts: 1,715	Thanks for all the good comments! Hewitson: Truth is, I don't even know myself why I did that. I'll get a diode and a coin battery holder soon, to do the proper job. EDIT: So I read abit about this, and it seems that the coin battery mod with its diode drops to lower than the RTC wants. I'll stay with the 3.7v NiMh battery, it's much newer than the older ones. I guess this one won't leak until like 8 years or so. fitzsteve: Yes it's the faulty one I bought at amibay. All I did was to resolder some rather dry solder points, and to my surprise it works just fine and is rock stable. Last edited by 8bitbubsy; 09 June 2011 at 21:12.

24 July 2011, 19:55	#15
8bitbubsy Registered User Join Date: Sep 2009 Location: Norway Posts: 1,715	The CPU socket on my Blizzard 2060 started to wear off and not get good contact, so I decided to desolder it and solder in an MC68060RC50 71E41J rev 6. That means no heatsink/fan needed at 50MHz. (WARNING! Do not attempt to do this if you're tired or do not have the energy. You are warned, I almost collapsed the moment I got finished ) Pictures (a lot of flux residue even after cleaning, so some dust got attached): You might see some damage on the through-holes, but it actually makes very good contact and I checked every point before I said myself done. It works like a dream. Next up: * Buying an SCSI->IDE solution, then use a CF card * Buying an Indivision ECS * Buying a Zorro sound card (maybe) . Last edited by 8bitbubsy; 24 July 2011 at 20:06.

09 June 2011, 09:06	#4
LTAC Registered User Join Date: Dec 2009 Location: France Posts: 129	@8bitbubsy: nice AMIGA 2000 with PicassoII & 060! Congratulations. An 060 CPU on an A2000: it's my dream!

09 June 2011, 10:12	#5
mfilos Paranoid Amigoid Join Date: Mar 2008 Location: Athens/Greece Age: 45 Posts: 1,978	Damn that's a fine piece of Amiga 2000 mate! Congratz and thanks for sharing some internal pr0n with us. Keep us posted. MiniMegi Chip hack was indeed a wonderful mod! Thumbs up for a clean job. Blizzard 2060 on A500/A2000 is always an interesting thing to watch

09 June 2011, 10:52	#6
duga Registered User Join Date: Nov 2010 Location: Sweden Posts: 528	Beautiful.

09 June 2011, 11:01	#7
Bloodwych Moderator Join Date: Jun 2001 Location: I'm behind you! Posts: 3,763	Looking good!!! Don't see many hardware threads on the A2000, so really good to see. As someone said, 060 on an A2000. Really special setup you have there! Thanks for posting.

09 June 2011, 11:05	#8
Hewitson Registered User Join Date: Feb 2007 Location: Melbourne, Australia Age: 41 Posts: 3,773	Very nice machine, don't understand why you replaced the battery with one that's prone to leak though.

09 June 2011, 12:02	#9
fitzsteve Professional slacker! Join Date: Jul 2009 Location: Kent, UK Age: 44 Posts: 6,685	Nice work 8bitbubsy Thanks for sharing the pics, as Bloodwych says we don't see many A2000's upgraded like yours. Is this the faulty B2060 you bought at Amibay? What was wrong and how did you fix it? Awesome stuff anyways Steve.

09 June 2011, 12:26	#10
cosmicfrog The 1 who ribbits Join Date: Apr 2006 Location: leek, Staffs, UK Age: 56 Posts: 3,557	Thats great for a v4 Mobo er you don`t want to swap your Blizzard 2060 for my gvp 040 hehehehehhehe NOT

10 June 2011, 01:22	#12
rare_j Zone Friend Join Date: Apr 2005 Location: London Posts: 1,178	Really nice a2000, nice and clean and well upgraded! Nice mods too. Thanks for posting!

10 June 2011, 11:44	#13
Hewitson Registered User Join Date: Feb 2007 Location: Melbourne, Australia Age: 41 Posts: 3,773	The voltage drop should be fine if you use a schottky diode. Rechargable coin batteries are also available.

10 June 2011, 11:52	#14
Loedown Precious & fragile things Join Date: Feb 2009 Location: Victoria, Australia Posts: 1,946	I had a look at the specs for the clock chip and with just a normal BAW56 or 1N4148 and taking into consideration the initial voltage on the battery isn't 3.6 volts I calculated the circuit would last some 10 years without needing a replacement or something ridiculous like that. From memory only; RP5C needs 2.2 or 1.7V for normal off state operation, BAW56 vdrop around 0.6V, normal state of CR2032 is around 3.45V at initial purchase, RP5C current draw in nA range in off state. CR2032 voltage drop off chart would be gradual decline and then sudden decline like most non rechargable batteries, only NiCads and NiMH batteries are fairly constant and then fall off rapidly

24 July 2011, 22:39	#16
Rebel-CD32 Amiga will never die! Join Date: Nov 2004 Location: Tasmania, Australia Age: 43 Posts: 532	Hey Bubsy mate, bloody awesome A2000 you have there, I'm quite envious. I'm not sure if you already know about them, but I recently bought a SCSI card reader which can mount up to five different cards at a time, including two CF cards (using the PCMCIA CF adapter in the PCMCIA port of it, which is only of any use with card readers anyway). You can hot-swap them too provided they're not being used as the boot disk, which I believe IDE doesn't support, so I'm not sure how that would go over the SCSI adapter but I think this option is neater anyway. We were using it on a friend's A2091 card with no problems, and it also works on my GVP HC+8. I just hope you only have one floppy drive in there because it fits in a 3.5" bay. Check them out here: http://a4000t.com/store/index.php?ma...roducts_id=184

25 July 2011, 01:13	#17
8bitbubsy Registered User Join Date: Sep 2009 Location: Norway Posts: 1,715	Ordered one now. This is great, now I don't need any CD-ROM. Just turn off the computer, populate LUN0 with PCMCIA<->CF, then I can access file that way, and use LUN1 (CF) as HDD.

01 September 2011, 16:43	#19
8bitbubsy Registered User Join Date: Sep 2009 Location: Norway Posts: 1,715	Udates! My A2000 has now got an SCSI<->CF card reader, which means no audible HDD noise. Also got myself a Picasso IV with the scandoubler PCB in place (though I cut it off and plugged it in my A2000 video slot). My A2000 is lightning fast now, it kicks a lot of butt. Time for some badly taken (as usual) pics! Not much Chip RAM used? 1024x768 16-bit, need to find a cooler wallpaper that is full screen and not 800x600... Playing ADoom with a good frame rate! Last edited by 8bitbubsy; 01 September 2011 at 16:52.

01 September 2011, 19:40	#20
tomse We need more scans! Join Date: Feb 2010 Location: Copenhagen / Denmark Age: 48 Posts: 326	@bubsy you've got yourself a pretty great setup there :-) you just need a deneb and a indivision ;-)

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