BIOS POST

[mgrimard]

Hi,
does anyone know exactly what is the memory test done during the BIOS POST? Does it read and write at each address or does it use another algorithmn?

Thanks,
Michael

 

[CTho9305]

I think it reads/writes the first 1k of each block.

[edit]"The memory check isn't very sophisticated and even though a simm is bad it won't detect it during the POST." man, google is not helpful with this topic! (i'm trying to confirm)

 

[mgrimard]

I searched on google too and all I can find is like, during the POST, memory is count and check and a message is displayed if an error is found...

I know that the quick boot only test the first 1mb of RAM, but what does it do to test it?!?

And if the BIOS shows that it counts 3 times the memory, does it do 3 times the same thing or does it test with different patterns?

Michael