RAM not working, advice please

[barringtoast]

I bought a motherboard bundle which came with 512mb ram installed and tested.

I also bought an extra 1Gig of ram to go with it.

now, the pc boots up fine with just the 512mb stick on the m/b
and it boots up fine with just the 1024mb stick on the m/b

but when they're both in, the boot process halts at the "verifying pool data...... Success" stage.

advice please, should i just sell the 512mb on and stick with the gig?

or how can i get both of them to work?

i've tried them in alternate slots and they don't work full stop when installed together.

 

[Chronicle]

I had a similar problem once. I think it was just the fact that some memory just won't always work in certain combinations on some motherboards :/

 

[barringtoast]

gutted, well i'm going to have to sell my 512mb and stay with my gig. after all, a gig is twice as much as i had in my old pc.