Memory Problems

[xenxes]

I have an ASUS 754 K8N-Deluxe motherboard which only houses 3 slots for ram.

Been running on: 2x 512mb DDR400 PC3200 Kingston HyperX
Just added: 1x 1GB DDR400 PC3200 Corsair Value Select

My problem is that my system won't recognize the Corsair stick when I have any of the Kingston ones in, for instance if I have all 3 in, it'll only read the 2x 512mb, if I have 1 512 and the 1gb in, it'll only read 1x 512mb. If I only have the corsair in, it reads fine. I've tried every possible combination in terms of which stick goes into which slot. Are the kingston sticks just incompatible w/ the corsair one? Any help would be greatly appreciated!

 

[montag451]

If you have that much RAM in, you might want to try slowing down the speeds for all the sticks in BIOS - and upping the voltage.

 

[mountcarlmore]

its a limitation of the s754 chips, they have problems mixing ram.

 

[xenxes]

I tried tweaking clock speed and all the available options no luck, guess I'll have to get a new stick

 

[mountcarlmore]

no matter what you buy, unless its a third 512mb kingston hyper-x stick of the same model, it wont run. you could sell your 2*512 sticks, and buy another matching 1 gig stick though.