Rank: Unregistered

Hi! Could you tell me how to determine the Memory size without using BIOS? Thanks.

Rank: ? (200)
Member #: 9404

You could just try writing on the memory sequentially. When you get an error, it does not exist!

ie:
write on the last bit of the 128th MB. if error then machine has less than 128 MB ram.
write on last bit of 64th MB. if error then machine has less than 64 MB ram.

write on last bit of 32nd MB. if not error then machine has MORE than 32 MB ram.
write on last bit of 48th MB

. . . etc

Creepy and crappy round about way, no doubt, but it's all I can think of right now!

:-o :-o :-o Don't judge me !

Rank: ? (1)
Member #: 24918

Yes,just that.But in protected mode,you should define the system GDT data limit as 4G.
or you will get a general protection exception.