I have been a lurker on Vogons for years - yet for some reason I have never made an account. This thread has prompted me to.
THANK YOU!
I just spent 4 hours trying to figure out why machine that I just replaced the RTC in would not boot. And guess what kind of board it is? Yep, Socket 4 Pentium 60.
With mine, I COULD enter the BIOS setup, but when I tried to boot anything other than the floppy, things would freeze. I specifically added in a Promise 133TX2 card that worked fine before the RTC replacement, and it would not pick up the BIOS ROM for the card. Likewise, a PCI video card would not work either. I spent 3 hours going over the board with my microscope, swearing I must have killed a trace somewhere.. But I found nothing.
When I first booted, the time field had some strange data in it - specfically when I tried to set the date, it said something like "0090 87 Set Separator DO NOT MODIFY!" as the existing value. This made zero sense to me.
After ruling out everything hardware, I was about to give up, until I found this thread.
GSETUP DID IT. My dates did not look weird, but I entered them again using this program. The machine booted up IMMEDIATELY afterward. Funny thing is I remember using this program on my literal old 386DX when it was current back in the day.
One thing to note, I replaced the 12887 with a 12887A equivalent, which seems to have an extra pin at Pin 21, bar RCLR. I had to bend this pin away on the replacement. I'm assuming this also may be why the CMOS clear jumper doesn't work?
Either way, ANOTHER SOCKET 4 BOARD SAVED. Thank you, thank you!!!!
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