I'm working on an EMachine (T2482) that had no POST beep or video and so far have replaced the motherboard (Biostar M7VIG400), fried it only seconds after powering up. Replaced the power supply and the RMAâ??d motherboard, refurbished I think this time. Now when I power it up at the POST screen I get:
â??CMOS Checksum Error Defaults Loaded
!Warning System had reset due to over-clock setting. Please re-enter CPU settings in CMOS setup and remember to save before quitting.â?
Only problem is I canâ??t get into the CMOS setup. F1, F8, F9, and DEL keys donâ??t seem to work. Iâ??ve tried to clear the CMOS settings by the jumper pins or by holding the Insert key while powering up. Replaced the MB battery. Nothing seems to work. My guess is the BIOS might be corrupt. Current BIOS version is VIG 1224 BS 400, which looks to be the latest offered. Any ideas are welcomed at this point.
