Resurrecting again. Does anyone have a diagram of where to measure the vdimm on an SLI-DR with a multimeter?

I am having a bizarre problem, I have a pair of 1GB Ballistix DDR sticks running on this motherboard in a media center pc setup. The machine is on 24/7, either fully on or in standby. And in the last 8 months I have had to RMA the ram twice. What happens is the machine is fine when its on, itll come in and out of standby no problem for weeks or months on end, however when I actually have to physically power the machine off for more than a few minutes it will then cease to boot, giving me the dreaded memory beeps. The only thing I can think to check is the voltage during standby/full operation, does anyone else have any suggestions on what could be wrong?

Is standby harder on ram than running normally 24/7? I can't imagine how it could be but I don't design the boards. I am also not overclocking these chips at all, running them at a very loose 200 3-4-4-8, stock 2.6V.

Thanks-