F3-12800CL9T-12GBRL‎ with asus P6T deluxe

[er557]

I have recently ran hci memtest for windows(8 instances x 1300MB), and it found one error with one thread. Ram is gskill 1600mhz 12gb RL kit 9-9-9-24 1.5v, on asus p6t deluxe latest bios - 2209, i7 965 3.2ghz ,nothing overclocked.
This utility is more stressing than memtest x86 for dos, as in windows memory is used differently.(BTW memtest x86+ two passes passed OK, as have all other threads in hci memtest)
I do have occasional video driver crashes, very rare, nothing else is wrong.
So which voltages should I adjust in the bios before testing again(everything is set to auto right now, XMP , 1600mhz, 1.5v.
should I adjust DRAM voltage or QPI/VTT voltage, and by how much?
Maybe reduce frequency from XMP 1600mhz to 1333mhz, as some say XMP is already overclocking?
And how do I know the default QPI voltage is set to right now?
Thanks!

[er557]

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[GSKILL TECH]

Manually adjust DRAM frequency, timings, and voltage.

QPI/VTT should be fine on AUTO

Default QPI is 1.10V, AUTO should be fine for this memory.

If you look near the setting, it should tell you current voltage.

Thank you
GSKILL TECH