Old notebook bios not recognizing all memory

pcvsnotebook

Honorable
Feb 13, 2013
1
0
10,510
I recently upgraded my old (945GM) chipset notebook memory ...

added 2x2G DDR2 800

while Intel says 945GM supports upto 4G of RAM , the Bios only recognized 3G in dual channel mode.

the System in Windows , says 4G of RAM ... and 3 in use .

the Graphics is not stealing the missing 1G here , when I put 2x1G it says 2G total in bios ..

any thoughts?

I already updated the Bios ... and I know that 32bit old cpu can handle and address 4G of Ram ..

And one last Question ,

Can I use the 4G without any stability problems given that the bios onle see 3 G of ram ?