i have been working on this same model so maybe i can help some.
kestrel is right, 8MB of system memory goes to the onboard trident-something or other graphics chip.
F10 is indeed the key to get into the BIOS.
the 'clear CMOS' jumper is near the nickel-sized battery on the motherboard. look for "CMOS" printed on the motherboard under this jumper. the jumper needs to be on 1-2 but you may want to clear CMOS settings first. to do this, remove the battery mentioned above, put the jumper on pins 2-3 for 20-30 seconds then put it back on pins 1-2, then put the battery back in its place.
hope this helps!

