memory question

[sam]

im building a new rig and was wondering what the difference is between registered and unbuffered and the difference is between nonECC and ECC my current memory in my box now is the corsair xms 512 pc2700 x2(1 gig) my new build is so far an asus a7n8x deluxe with a 2500+. i going to be overclocking so i was lookin for memory to get for it. i was lookin at the corsair xmsPRO series. i want 1 gig so im going for 2x 512 so i can use the dual mem on the board but was wondering what mem to get?is it worth geting anything over the 3200(ddr400) sence the board is a 400 fsb or sence im going to overclock will i benifit from the 3500(ddr433) or the 3700(ddr466)
thanks
Sam

[sam]

notes from sisoft on my current rig

[Bovon]

Most motherboards do not support registered ram. Registered ram is only used in servers I think. The motherboard's northbridge drives the ram. When too much ram is installed, the northbridge cannot drive that mass and it can overheat the northbridge (hence all of the heatsinks with fans attached to northbridge these days). ECC is error checking and takes one more clock cycle to process. Unless you really need that extra error checking, just go with unbuffered non parity ram..unless of course your mainboard requires it.

The following URL may explain ECC better.
http://www.corsairmicro.com/main/tecc.html

[Rand Dusing]

If you have a 2500 and you overclock it 3200 speeds then you'll want 400mhz RAM or PC3200 RAM. I think non-ECC is the only thing 2500+'s can use but I'm not sure. But I know ECC is used my AMD 64s cause my friend just won some from Corsair.

I'm not sure if you will be able to overclock past 400mhz or 3200 speeds so I would only get 3200 ram.

[John Prophet]

buffered, or, registered

ecc, or, non-parity

"registered"

is all registered ram also ecc?

is unbuffered faster than registered

will unbuffered and buffered dimms fit in the same socket?

JP

[sam]

thanks for all the responces