Hey guys, its been a while since I've done any serious tinkering with my rig and I want to drop in some extra ram as a cheap alternative to completely rebuilding it.

I've currently got a 512MB Stick of some Corsair XMS PC2700.  CAS Latency 2, Timings are 2-3-3-6.

What I want to do is drop another 512MB, but I want to do for very cheap.  I was looking at Corsair's Value line as an option.

So my question....Will there be any problem in combining the XMS stick with a Value stick?  Should I still notice an increase in performance?  Keep in mind I won't be running them in dual mode as my MoBo can't deal with that.  Thanks for any advice.

so long as the voltage of both sticks is the same, and the PC**** rating is the same, you should not have a problem.

Thanks for the input.  As long as I see some increase in performance, it was money well spent.

Hopefully I'll soon be employed full time and can start funneling away some income to finance a new rig.  After 3 years of having the same configuration without updating any hardware, I'm pretty sure I'll see a big difference.

Also, another question.  If I make a switch from a P4 1.8ghz (OCed to 2.34) to an Athlon 64 3500+ or a 3800+, what kind of processing performance increase will I see?  I understand that 64bit processors don't make much of an impact unless you're running applications that support 64bit.