First post, by UltimateElectronic
I have an Olivetti Pentium 75 machine that I acquired a while back, the computer isn't broken, I was able to get it to POST and boot, but it had a Dallas DS12887a RTC chip on there which had died, unfortunately it was soldered in, but I did manage to remove it and now I have the mainboard with a socket where the chip was, but I'm still waiting to receive the replacement that I've ordered. Decided to turn the computer on with just the socket and no chip, as I concluded that the RTC probably wasn't necessary to get a screen to appear. So, could my conclusion of the board not needing an RTC to get a screen have been wrong, could the board have needed an RTC chip present to POST?
Mainboard/computer specs, in case they're needed for additional diagnostics:
Computer model: Olivetti TINSL/II or PCS P/75 n,
CPU: Intel Pentium 75, socket 5
BIOS: AMIBIOS: 10/10/1994, Resident Diagnostics Ver, 1.12, BIOS ID 51-3103-000981-00111111-101094-SIS550X-Z
Chipset: SiS 5501, SiS 5502, SiS 85c503
Graphics card (integrated) : Trident TGUI9680