Acer Travelmate 220 Flashing

Hello, I was wondering if someone would be able to tell me where i can find the cmos battery on a travelmate 220, or if their is a jumper hidden away.

I bought a second hand tm220 and it worked fine, until i installed the graphics card, now it has been constantly crashing, so I was hoping to disable video shadowing, but the person who sold it to me failed that their was a password on the bios

any help is appreciated,
with respect
r3in

 

Interestingly enough I found the cmos battery, but when it was removed, and I booted again, the BIOS was not flashed. in fact, it made absolutely no noticable difference whether it was their or not, so i must assume that I need to find a set of jumpers to complete it

any ideas?
Peace = love = jealousy = hate = war
r3in

 

cmos battery capacitance

Usually the cmos btt will have to retain a positive efficiencey of device ie. Eff=output/input to put it simply or the bios can not be flashed as per its capacitance again ie. 0.0885xdielectric constantxarea in cm2x(no of plate -1)/thicknessof dielectric in cm hope this helps