First post, by .legaCy
- Rank
- Oldbie
I'm working on restoring a S7 Pentium MMX system, cleaned all of the case, retrobrighted the front, everything perfect.
Now came the time to make it actually work.
First i did a sanity check on the AT PSU, all voltages were correct(of course that i'm loaded some rails to test), then i connected back to the board, and nothing, no beep, nothing at all, CPU get warm.
Then i went through my usual troubleshooting, decided that a recap was needed.
The board has no sign of physical damage, no corrosion, everything seems ok, so i recapped all the THT capacitors(all the smd ones remains the same).
After recapping i quickly inspected and became testing, first without any cpu,ram, and expansion boards, nothing exploded, then i tested with the pentium MMX, 2 known good simms, and a known good vga card, booted up nicely, complained about the CMOS battery but i managed to proceed to the setup and it worked.
Then i installed back into the case, connected everything back, and then it suddenly stopped working, now it doesn't beep, my post card shows just 00, reset is constantly high and IRDY LED is constantly off.
I disconnected everything, then i checked for shorting something into the case, and its all good, but the board don't boot anymore, it stay just as described above.
Anyone got a clue of what might be happening? i also tried with a k6-2 and another pentium mmx and nothing.
EDIT: Look the rest of the thread cause i talk about another board.