DDR2 6400 on Intel D925XCV?

[SiteSolutions]

Got new RAM, 800 MHz DDR2, posts fine at stock settings (533 MHz memory clock) but can't hop it up any. Stock BIOS let me try 667 but wouldn't post. Tried updating BIOS and now I can't even OC the memory; new max is 533. Am I missing something? Is there a good source for a better BIOS? This "new" stuff is from 2006.

[DMB2000uk]

I think it's a chipset limitation rather than a memory problem.

The boards just weren't designed to run memory that fast (it was a long time ago those boards were brought out).

Dan