Needed: pictures of Apollo 1260 cards, both sides of the PCB...

[olegil]

I've popped out the 68040 from my Apollo 1240, and the next step is soldering in a socket for replacement. Then we'll see if the old CPU still works while I try to find a good source for 68060 chips (I know the site that everyone refers to, but I would like something a bit more professional and an offer that hasn't expired 9 months ago ;-) ).

Anyway, I am too paranoid for this, so I want to see that there's no extra magic on the 1260 cards. The PCB is supposedly the same (the text on one of the inner PCB layers says 1240-1260, so should be). I know about the CLK jumper selector (040 or 060 settings) and the 060 jumper (next to the SCSI jumper), but the 68060 is a 3.3V CPU and the card is 5V, so I was expecting some extra electronics to decrese the voltage. There isn't any, and there isn't room for any.

If you have an A1260 and a digital camera, let me know. I would like to have a high-res picture of each side of the PCB, preferably the whole card in the picture so I can see any differences.

[olegil]

Hmm, found one. Seems there's an external PSU regulator plugged into the board.

http://www.amiga-hardware.com/apollo1260.html

Oh well, next we look at building a 5V to 3.3V regulator, then. GND to GND and Vin/Vout to Vin/Vout is simple enough to connect.

But what's the extra pins for?

[olegil]

Oh just forget the whole thing.

4 pins for Vin, 4 for Vout, 4 GND and 2 pins to sense the temp of the CPU. Now I wonder what the PSU regulator uses the sense pins for...

[Staticman]

lol
amigahardware.com is the only suggestion i can think of ;-)