Registered DDR?

I'm about to buy some memory for my new Abit AN7 (i will get it in a few days)?

I was wondering if the Corsair XMS Registered DDR, 512Mb, will work here. The mobo's manual says it supports unregistered/unbuffered memory, but does not say anything about registered ddr.

I know registered memory is better (performance) but i don't sure if it will support it.

Any help/suggestion is welcomed...

AFAIK registered memory are more reliable, but decrease in performance, that's why no one use them except servers.