When I turn on the power the BIOS will show up with the message "CMOS checksum error - Defaults loaded". At first I ignored this and continued on to try and install Windows XP. When the setup got to a point where it had to restart the computer restarted but nothing came back on the screen. The computer was running however as the fans were still working.
After leaving it powered off for 5-10 minutes I started it back up again to find that the CMOS had reset itself. I downloaded the newest BIOS file from the manufacturers site and corresponding utility file in order to update the BIOS. After running this I again restarted to find the same result, a black screen with the computer running and no BIOS.
Time after time I've had to leave it off for 5-10 minutes and then start it up just to get to the BIOS menu. But to no avail I will have to restart and then it's back to the black screen, no BIOS, but with computer running.
I have tried everything from unplugging all input sources and replugging them back, clearing the CMOS, changing keyboard/mouse, and other advice offered from online sources. But nothing works.
Some sources say the battery may be defective causing the "CMOS checksum error" but I am unsure of this considering this is a brand new motherboard received just yesterday. However, installing a new battery is the only step that I know of that I haven’t taken. (Actually am on my way to store after this post to buy one.)
I'm concerned with why the BIOS refuses to show up after being restarted and why it has to wait 5-10 minutes with power off before it starts up again only to be reset.
The following is a list of hardware (all brand new) with the system:
Foxconn 655A01-FX-6LRS Socket 478 SIS 655FX ATX Intel Motherboard
Intel Celeron D 330 Prescott 533MHz FSB Socket 478 Processor
Western Digital Caviar SE WD800JD 80GB 7200 RPM Serial ATA150 HDD
pqi POWER Series 1GB 184-Pin DDR SDRAM DDR 400 (PC 3200) Unbuffered
eVGA 128-A8-N350 Geforce 6600GT 128MB GDDR3 AGP 4X/8X Video Card
NEC Black IDE DVD Burner Model ND-3540
SONY Black 1.44MB 3.5" Internal Floppy Drive
RAIDMAX Elite ATX Mid Tower Computer Case 380W Power Supply
Thanks for any help (and putting up with quite possibly the world’s longest post!)