My motherboard won't recognize 2 sticks of ram.

[Lawrencetan21]

I have a Biostar p4m80-m4 mobo. I already have pc3200 512 in one slot and it worked fine. I bough another pc3200 512 and stuck it in and it still saying that I only have 512 total. Both slot works cause I've tried a single stick on both slot and the computer boot just fine. PLease help. Thanks.

 

[Lawrencetan21]

Anyone?

 

[corkyg]

Some mobos are fussy about which slots you use, and also what kind of memory. Some older ones require matching DIMMs.Some require different combinations in specific slots when both DS and SS Dimms are used.