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~LL~
10-17-2011, 12:16 PM
Hi Matt

Can I draw your attention to this thread please and get your thoughts/input?

http://forums.tweaktown.com/gigabyte/46290-ga-z68x-ud7-b3-g-skill-sniper-dram-issue.html

G.Skill - Matt Wang
10-17-2011, 02:44 PM
Hi ~LL~,

as you mentioned that you were unable to using 7-8-7-24 when using two kits together, however, it's not the correct way to using memory modules.
we will always suggest our customer going to use one kit only to avoid any possible of incompatible issue, even using same model of kit. Because every single kits need to pass numerous
of compatible tests before selling to customer, we can't guarantee the compatibility if any two kits install at the same time. in your case, already update the BIOS and the only way
is raising the voltage, please adjust the DRAM voltage from 1.6v to 1.65v and try again.

~LL~
10-17-2011, 03:24 PM
Hi ~LL~,

as you mentioned that you were unable to using 7-8-7-24 when using two kits together, however, it's not the correct way to using memory modules.
we will always suggest our customer going to use one kit only to avoid any possible of incompatible issue, even using same model of kit. Because every single kits need to pass numerous
of compatible tests before selling to customer, we can't guarantee the compatibility if any two kits install at the same time. in your case, already update the BIOS and the only way
is raising the voltage, please adjust the DRAM voltage from 1.6v to 1.65v and try again.

Thanks for replying Matt


The main issue is that even when I use just one kit (8GB) and run this memory in XMP mode the computer boots up as 8-8-7-24 and not the 7-8-7-24 that it is designed to.

In CPU-Z The SPD XMP data says it is 7-8-7-24 but the memory data shows 8-8-7-24. This is confirmed in every other source I have seen.

See the image below.

I have tried 1.64, 1.66, 1.68 and 1.70 V with no joy. I have also increased QPI/VTT incrementally with no luck - and it still boots in 8-8-7-24 when using XMP mode with both 8GB and 16GB.

When I set the timings manually with 16GB it will boot with 8-8-7-24 (the same as XMP) but not 7-8-7-24.

When I set the timings manually with 8GB at 7-8-7-24 it works. But this is the only way it will work at its designated rating - manually and only with 8GB - not XMP.

So the question has to be asked whether this is a memory or motherboard issue.


3914

~LL~
10-17-2011, 03:31 PM
3915

G.Skill - Matt Wang
10-17-2011, 04:29 PM
Hi ~LL~

sorry!!!
i just test it and have same result as yours, confirm with G.SKILL headquarter and they said already report this problem to Gigabyte long times ago and still waiting for
the BIOS renew!

~LL~
10-17-2011, 04:40 PM
Hi ~LL~

sorry!!!
i just test it and have same result as yours, confirm with G.SKILL headquarter and they said already report this problem to Gigabyte long times ago and still waiting for
the BIOS renew!

Matt

That's good to hear! I felt it was most likely the BIOS of the board that was the issue, so great to know I'm not the only one with the problem. Are G-Skill going to remove it from their list of Boards it works with until it is fixed?

Let's hope Gigabyte fix this issue soon.

regards

~LL~

G.Skill - Matt Wang
10-17-2011, 05:40 PM
Hi ~LL~

i will contact our marketing to add an attention notice to remind people that Gigabyte GA-Z68X-UD(3/4/5/7)-B3 having timing problem with XMP, and need to adjust manually to running as SPEC.