help with RAM

[sinthon]

Does my RAM FSB need to match my CPU FSB? Such as if I have an Athlon 2500+ with 333FSB and I have Corsair XMS PC3200 RAM (400MHZ) will that setup work?

 

[mechBgon]

That works fine, I have the same. You should run the RAM at PC2700 speeds so it's synchronous with the CPU's FSB, however, so yes, you could also opt for PC2700 if you don't want to overclock and/or pave the way for a future upgrade to a 400MHz-based CPU.

 

[MercenaryForHire]

Originally posted by: mechBgon
That works fine, I have the same. You should run the RAM at PC2700 speeds so it's synchronous with the CPU's FSB, however, so yes, you could also opt for PC2700 if you don't want to overclock and/or pave the way for a future upgrade to a 400MHz-based CPU.

It never hurts to have overhead. Plus, if the RAM is rated at CAS2.5 at the 400MHz, it can probably run CAS2 at the lower speeds.

- M4H

 

[sinthon]

So if I use my Barton core 2500+ at 333FSB I will have to underclock my RAM?

 

[mechBgon]

You don't have to, but it will perform best that way. Since you already have the RAM, you've got both options open to you.

 

[MercenaryForHire]

Originally posted by: sinthon
So if I use my Barton core 2500+ at 333FSB I will have to underclock my RAM?

Technically, RAM doesn't have a fixed clock per se, so it wouldn't be "underclocking". You just wouldn't be running it at the maximum rated speed. But you've got the right idea. Run both your chip and your RAM at the same speeds (333 if you're staying stock).

- M4H

 

[sinthon]

thanks lots, oh and I am planning on OC alot with my 2500+ what mobo is best for it. Abit nf7-s seems to show up a lot but I like the features on asus a7n8x dx what do you think?