Hi yes, several lessons from this:
Don't pair (and don't recommend to pair) the P35C DS3R with the
XMS Corsair RAM until we know the apparent voltage issue with the board's resolved. (Didn't try to update the BIOS, it's possible this issue *might* be solved with a newer BIOS... Yanto will have to check if he wants to/is interested, which I kinda doubt...
) Aside: I'm pretty sure this is a fairly isolated issue, as it doesn't appear to affect the other P35 Gigabyte boards (DS4, DS3P). (I've specced machines with them and on the one I also used Corsair memory, albeit not the exact same sticks, and it worked fine. )
Can confirm that the
Geil memory PC6400C4 is cracking value, not only is it very good value for money, it works very well, and has a broader operating voltage range than most (1.9V - 2.3V) so is more tolerant of this type of slight problem. The RAM worked flawlessly at "stock" meaning BIOS set to "1.8V" (no overvoltage), which kind of lends support to the theory that this particular board overvolts slightly, as the machine was stable despite technically being set to undervolt the RAM (the RAM requiring 1.9V minimum normally), and such undervolting often being the cause of system instability.
Can also confirm the
OCZ PC5400C5 2GB sticks will work fine in the P35C DS3R, although it's not quite as forgiving as the Geil (going by stated voltage limits), it's still good enough to work "at stock" on the board. (As an aside, I notice the page on OcUK's site for the OCZ memory isn't quite accurate - the operating voltage for the OCZ is actually 1.8V - 2.0V, as per the manufacturers
spec page.)