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Search: Posts Made By: Sim085
Forum: support.Other Yesterday, 11:05
Replies: 15
Views: 472
Posted By Sim085
Do you mean like using tools like re-source? ...

Do you mean like using tools like re-source?

Also what would you qualify as "system friendly"? For example would a game that runs from workbench be classified as so?
Forum: support.Hardware 09 November 2019, 15:59
Replies: 4
Views: 148
Posted By Sim085
So when we say that Agnus is 512KB or 1MB or 2MB...

So when we say that Agnus is 512KB or 1MB or 2MB it means the amount of addressable ChipRAM only? If the Agnus is 1MB and in total on board and through bottom expansion slot there is a total of 2MB...
Forum: support.Other 08 November 2019, 21:32
Replies: 4
Views: 296
Posted By Sim085
SysInfo: why A600 reported as slower than A2000?

Just out of curiosity; why does an A500+ with 1MB chipRAM get a lower score than an A2000 and A600 is reported to be just 77% as fast as an A2000? Didn't the A2000 come with a 68000 at 7Mhz and 1MB...
Forum: support.Hardware 08 November 2019, 14:46
Replies: 4
Views: 148
Posted By Sim085
Is bottom expansion slot just for a clock board on an A500 rev5 with 8371 agnus?

Given the Agnus 8371 agnus supports 512K of RAM, and given a rev5 A500 board already comes with 512K of RAM onboard, then does it mean that such a machine, unmodified, would only support a clock...
Forum: support.Hardware 01 November 2019, 16:10
Replies: 128
Views: 16,186
Posted By Sim085
Hello, just checking if anyone is selling empty...

Hello, just checking if anyone is selling empty PCBs of the latest version of the A314. I would really like to try and build one of these.
Forum: Hardware mods 29 October 2019, 12:39
Replies: 32
Views: 1,836
Posted By Sim085
(I am no keyboard expert so sorry if the question...

(I am no keyboard expert so sorry if the question might sound stupid)
Isn't the layout of the A1200 keyboard same as that of an A500? I know the controller is different but what about the layout?
Forum: support.Hardware 18 October 2019, 22:36
Replies: 20
Views: 610
Posted By Sim085
http://amiga.resource.cx/mod/a500.html has the...

http://amiga.resource.cx/mod/a500.html has the following information;

revision 3:
512kB Chip RAM on motherboard as 16 chips
Kickstart 1.2 ROM

However I myself never owned a rev3 A500 so do...
Forum: support.Hardware 18 October 2019, 22:02
Replies: 20
Views: 610
Posted By Sim085
It looks like a rev3 ...

It looks like a rev3
http://amiga.resource.cx/photos/a500,1
Forum: support.Hardware 17 October 2019, 23:16
Replies: 20
Views: 866
Posted By Sim085
By looking at the fake 68010 and compare this...

By looking at the fake 68010 and compare this with the original 68000 I would say they use something like a sandpaper to remove the original markings and then they place new markings.
Forum: support.Hardware 17 October 2019, 20:32
Replies: 20
Views: 866
Posted By Sim085
ok, by using vbr.68k I can confirm that this is a...

ok, by using vbr.68k I can confirm that this is a FAKE!



It was pretty cheap which is why I tried it out.



The CPU sent to me does not look like the one in the image on the ebay seller...
Forum: support.Hardware 17 October 2019, 13:11
Replies: 20
Views: 866
Posted By Sim085
Sorry for the newb question, but how do I do...

Sorry for the newb question, but how do I do this? Just type those two lines in Shell?
Forum: support.Hardware 17 October 2019, 13:07
Replies: 20
Views: 866
Posted By Sim085
Here is photo of CPU.

Here is photo of CPU.
Forum: support.Hardware 16 October 2019, 23:38
Replies: 20
Views: 866
Posted By Sim085
SysInfo reports 68010 as being 68000. Is this normal?

Hello, so the 68010 I ordered arrived. Popped into an A500, switched in and everything booted fine. Tried SysInfo and this reports it as a 68000. Tried WhichAmiga and this reports the 68010 as 68000....
Forum: News 05 October 2019, 21:08
Replies: 448
Views: 59,701
Posted By Sim085
+1 to this.

+1 to this.
Forum: support.Hardware 03 October 2019, 23:19
Replies: 24
Views: 1,978
Posted By Sim085
Ok, please bare with me as I am no hardware...

Ok, please bare with me as I am no hardware wizard at all. I went to check and from what I can see the crystal on the A500 is 28.37156MHz (tbh I always thought it was 7.09MHz). So - based on this...
Forum: support.Hardware 03 October 2019, 12:51
Replies: 24
Views: 1,978
Posted By Sim085
If the CPU is on its own board does that mean the...

If the CPU is on its own board does that mean the A500 motherboard would keep its original crystal while the new board would have its own crystal?
Forum: support.Hardware 02 October 2019, 17:32
Replies: 24
Views: 1,978
Posted By Sim085
that is intresting ... but wouldn't 14MHz fry a...

that is intresting ... but wouldn't 14MHz fry a 12MHz CPU? Or it is within the limits of this?
Forum: support.Hardware 01 October 2019, 23:34
Replies: 24
Views: 1,978
Posted By Sim085
I was thinking, given this is a P12 can I change...

I was thinking, given this is a P12 can I change the crystal on the A500 to a 12Mhz? or that the other stuff on the board don't work at that speed?
Forum: support.Hardware 27 September 2019, 18:34
Replies: 24
Views: 1,978
Posted By Sim085
Bought a 68010

Bought a 68010P12 from China. Might never arrive but who knows. Anyway, going to the real question, read many people say that a 68010 is not worth it because some software does not work on it. I...
Forum: support.Hardware 15 September 2019, 21:35
Replies: 11
Views: 346
Posted By Sim085
I am no hardware expert. However when I opened a...

I am no hardware expert. However when I opened a cumana I found that it had a modified pc floppy-drive in it. An amiga floppy-drive would not work with the board inside the cumana and the...
Forum: support.Hardware 12 September 2019, 21:19
Replies: 5
Views: 351
Posted By Sim085
Yes that is always an option. I can see that the...

Yes that is always an option. I can see that the pad was connected to a via so I guess I could solder a wire from there to the the chip leg missing the pad. However why wouldn't repairing the pad be...
Forum: support.Hardware 09 September 2019, 22:55
Replies: 0
Views: 137
Posted By Sim085
A500 rev6a chipRAM mods (1MB on motherboard)

I have seen several ChipRAM mods but none which I can find actually results in a setup similar to an A500+ (1MB ChipRAM on motherboard and 1MB ChipRAM through trap-door expansion).

From what I...
Forum: support.Hardware 09 September 2019, 14:23
Replies: 128
Views: 16,186
Posted By Sim085
Hello, I am very interested in this project. From...

Hello, I am very interested in this project. From the git repository I can see there is a v1.0 available.

Is anyone planning to sell these boards as a DIY kit?
Forum: support.Hardware 08 September 2019, 22:17
Replies: 5
Views: 351
Posted By Sim085
Epoxy - fixing a broken pad

I have a motherboard with a broken pad. I have done some research and I have read that it can be fixed with a replacement pad and some epoxy. I have manage to get an extra pad from a broken pc...
Forum: support.Hardware 06 September 2019, 20:57
Replies: 4
Views: 347
Posted By Sim085
My card does have a switch on/off. So regardless...

My card does have a switch on/off. So regardless of what I do to JP7, if I make the JP2 modification then if I let the trapdoor card off it is recognized as chipRAM and if I turn it on it is...
Forum: support.Hardware 04 September 2019, 20:24
Replies: 4
Views: 347
Posted By Sim085
A500 (rev6a) 1MB chipRAM mod - avoid cutting JP7?

At the moment I am checking about mods to have an A500 rev6a motherboard see 1MB chipRAM instead of 512KB chipRAM and 512KB slowRAM. From what I understand one option is to cut JP2 pad 2 and 3 and...
Forum: support.Hardware 04 September 2019, 19:49
Replies: 3
Views: 166
Posted By Sim085
At the moment I have in mind paula as this is the...

At the moment I have in mind paula as this is the one which has signs of underneath corrosion. However I was wondering if I could the same with all surface mounts of an A1200...
Forum: support.Hardware 04 September 2019, 14:58
Replies: 3
Views: 166
Posted By Sim085
convert chip from sm to plcc?

Hello, I am thinking of removing an surface mounth chip to clean well the motherboard and make sure there is no corrosion going on under this.

I was wondering however, can I install a plcc socket...
Forum: support.Apps 01 September 2019, 13:09
Replies: 2
Views: 383
Posted By Sim085
Thanks AmigaSystem. It worked :)

Thanks AmigaSystem. It worked :)
Forum: support.Apps 01 September 2019, 12:33
Replies: 2
Views: 383
Posted By Sim085
CopyIcon tool (with gui) for Workbench 2.04 / Kickstart 2.04

Hello, I just found out that CopyIcon tool (the one with the two window panes) does not work on a system with Workbench 2.04 / Kickstart 2.04. I tried to search on aminet and I did find some command...
Forum: support.Hardware 31 August 2019, 21:37
Replies: 18
Views: 490
Posted By Sim085
I do have a spare solder station (the first one I...

I do have a spare solder station (the first one I bought) so I might try this. Today received new soldering wick. At first I had some success managed to remove solder from one of the wholes. But the...
Forum: support.Hardware 31 August 2019, 10:10
Replies: 18
Views: 490
Posted By Sim085
Thanks to all for the great advice given here :) ...

Thanks to all for the great advice given here :)
I managed to remove the RF modulator. First I de-soldered all the internal stuff I could find within it and finished up with an empty box. I then...
Forum: support.Hardware 30 August 2019, 22:24
Replies: 15
Views: 524
Posted By Sim085
Yes, I saw his site and his FAQ is very helpful....

Yes, I saw his site and his FAQ is very helpful. I'll probably send him another A1200 I have which I do not dare touch myself.

With regards to this particular A1200; It was recapped but probably...
Forum: support.Hardware 29 August 2019, 22:03
Replies: 18
Views: 490
Posted By Sim085
So trying again to remove the RF modulator... I...

So trying again to remove the RF modulator...
I can see the temperature never goes down more than 5 degrees, i.e. from 450 it goes down to 445 and then up again, etc. However the things does not...
Forum: support.Hardware 29 August 2019, 15:21
Replies: 18
Views: 490
Posted By Sim085
I have a Fixpoint Digital soldering station. It...

I have a Fixpoint Digital soldering station. It has the following technical details;

power soldering iron: ca. 48 W
soldering iron voltage: 24V
frequency: 50 Hz
temperature range: 150-450 °C
Forum: support.Hardware 29 August 2019, 14:29
Replies: 18
Views: 490
Posted By Sim085
So what temperature do i need to use?

So what temperature do i need to use?
Forum: support.Hardware 29 August 2019, 13:09
Replies: 18
Views: 490
Posted By Sim085
Desoldering A1200 RF Modulator (How did you do it?)

Hello, I am trying to desolder the RF modulator from a broken A1200 motherboard. Here is what I tried and failed so far;

1. Put the soldering station to 450 degree, put the solder head on one of...
Forum: support.Hardware 29 August 2019, 08:00
Replies: 15
Views: 524
Posted By Sim085
I took it for recap around two years ago. The...

I took it for recap around two years ago. The person who did the recap did tell me that some caps around the IDE had leaked. Later it developed a sound issue so something else must have had leaked as...
Forum: support.Hardware 28 August 2019, 21:50
Replies: 15
Views: 524
Posted By Sim085
Once I remove the chips from the motherboard how...

Once I remove the chips from the motherboard how can I clean them? Just IPA is enough?

With regards to sonic cleaning; is this an option to clean without disoldering all chips, or all chips still...
Forum: support.Hardware 28 August 2019, 18:18
Replies: 15
Views: 524
Posted By Sim085
Motherboard: Can someone help me understand what this is and how to clean it?

Hello, I have this a1200 motherboard (recapped) which I would like to clean up before I attempt any further repair works on it. I have been trying to clean it up with IPA. However I am not really...
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