F3-10666CL7D-4GBRH + Gigabyte H55M-UD2H unstable

[cerpintaxt]

Hi,

I have two equal systems consisting of:

- Intel Core i5 750
- Gigabyte H55M-UD2H
- 2x2GB Ripjaws (F3-10666CL7D-4GBRH)

One system is running just fine while the other is very unstable with blue screens and lots of errors in Memtest. If I exchange the Memory Sticks of the two systems it is the other way round, so one kit is causing the issues. Sometimes after a few blue screens and reboots the faulty system runs fine for hours and hours until I shut it down. After a cold boot on the next day the issues are back again.
I tried to use the XMP that sets the timings to 7-7-7-21 but it doesn't make a difference.

Is this the cold boot issue some Ripjaws have or do you have any other ideas?

Thanks in advance,
jan

[Tradesman]

If getting errors on both boards, prob have bad sticks or a stick in the test, if new may want to see if you can exchange w/ your retailer or contact GSkill for a RMA @ rma@gskillusa.com or if not in the Americas rma@gskill.com info on the process can be found at www.gskill.com