A1200T + BPPC (Resolved)

[alexh]

@nyteschayde

You really should do your homework before buying things like this. Check your A1200 motherboard and tell us which revision it is.

I'd bet that it is a 1D.4 or a 2B and as such requires some timing fixes to work with accelerators like the BPPC.

http://www.ianstedman.co.uk/Amiga/amiga_hacks/A1200_Mobo_fix/a1200_mobo_fix.html

@Effy
I thought you would have known about these fixes? You might have been able to advise nyteschayde which A1200 to buy and saved this thread. He maybe a little stoopid, but that is no excuse ;-) BTW: Can you get me a nice cheap 1260?

[alexh]

nyteschayde wrote: It appears to be a 1D4 model.

It is a 1D.4 motherboard.

nyteschayde wrote: But on the url supplied above, they mention only a Budgie Rev 01 and Budgie Rev 02 fix for 1D4 mobos.

Unfortunately a badly worded help page, due to poorly numbered chips! There were two budgie chips: Budgie Rev 0 (part no. 391425-01) and Budgie Rev A (part no. 391425-02).

nyteschayde wrote: Any ideas on which model this is? It seems to be a Budgie Rev 0.

You have a 1D.4 motherboard with a Budgie Rev 0 391425-01. You follow the instructions on that help page marked 1d5 Budgie Rev1. I think you can follow from there?

[alexh]

I have to say that looking at the photographs of your BPPC you can see that it's had it's two crystals replaced AND the Zero Ohm link jumpers (clock multiplier settings) changed sometime after it was sold (i.e. neither are factory issue)

Pressumably these mods were to overclock both the 040 (33MHz) / 060 (66MHz) and PPC (266MHz).

http://xoomer.virgilio.it/giorsign/overclock.html

 Just looking at the soldering work you can see it was not done to.. lets say.. "the highest" of standards. Not only did they not clean up all of the PCB resist with some alcohol afterwards, you can see where they accidentally melted part of the plastic on the top of SIMM socket with the soldering iron when they were doing the mod :-)

[alexh]

nyteshcayde wrote:they never made a 68040 @ 33Mhz, 603e @ 200MHz [/b]

Reading the multiplier settings on your board photo, "1010" it's a 4x clock with a 66MHz crystal, that's ~266MHz as I read it. The only way you'll know for sure what speed the board was originally would be to remove the heatsinks and read the ratings off the chips. But I wouldnt recommend doing that.

nyteshcayde wrote: I also noticed after the purchase that the fan on the 040 was added.[/b]

040's need heatsinks and fans, they are significantly hotter than 060's.

P.S. Please dont bin it, or take a hammer to it in disgust. I still feel that Effy wouldnt sell you a dead board and it's more likely an incompatibility issue.

[alexh]

For me the fun bit is looking at Effy's girlfriends boobs on his adverts :roll: