1040STe CA401177 1991, Soldered CPU, C398789 DMA, Ajax, integrated Blitter

STE motherboards
Post Reply
derkom
Posts: 181
Joined: Sun Jul 29, 2018 6:45 pm

1040STe CA401177 1991, Soldered CPU, C398789 DMA, Ajax, integrated Blitter

Post by derkom » Mon Sep 16, 2019 5:27 pm

P1030129.JPG
P1030129.JPG (387.33 KiB) Viewed 855 times
P1030126.JPG
P1030126.JPG (326.82 KiB) Viewed 855 times

dazcoull
Posts: 14
Joined: Fri Nov 01, 2019 8:50 am

Re: 1040STe CA401177 1991, Soldered CPU, C398789 DMA, Ajax, integrated Blitter

Post by dazcoull » Mon Nov 25, 2019 1:16 am

Has that board been recapped or changed in any way? Notice a few minor differences to mine (which is otherwise exact same model of board)
IMG_20191014_161634 (2).jpg
IMG_20191014_161634 (2).jpg (450.34 KiB) Viewed 240 times
Mine has since had new 2.06 TOS chips and replacement RAM from the good man Exxos :-)

derkom
Posts: 181
Joined: Sun Jul 29, 2018 6:45 pm

Re: 1040STe CA401177 1991, Soldered CPU, C398789 DMA, Ajax, integrated Blitter

Post by derkom » Mon Nov 25, 2019 6:36 am

It was not unusual for Atari to change suppliers for parts like capacitors, depending on who was the cheapest at the time. I also can't promise that my board in the first post hasn't been altered, since it was not originally mine.

dazcoull
Posts: 14
Joined: Fri Nov 01, 2019 8:50 am

Re: 1040STe CA401177 1991, Soldered CPU, C398789 DMA, Ajax, integrated Blitter

Post by dazcoull » Mon Nov 25, 2019 9:33 am

Thanks, judging by the flux residue on the rear of the board, looks like something was done just above the RAM, perhaps RF modulator repair?

It truly is amazing how many board versions there are!

Post Reply

Return to “STE”