Settings for F3-12800CL7D-4GBRH x2 + Crosshair III Formula + Phenom II x4 965

[Lyme]

I picked up two sets of F3-12800CL7D-4GBRH http://www.gskill.com/products.php?index=226 (8gig total)
plus

Crosshair III formula (bios 1105) http://rog.asus.com/product.aspx?pCo...4DFB9C0BC#tabP

and

AMD Phenom II X4 965 (Stepping 2) http://www.ncix.com/search/?category...enom+II+x4+965

I'm running windows 7 x64.

What would be the best settings for the memory for this configuration?

Thanks.

[G.SKILL]

sorry, but we don't recommend you to run DDR3 1600 with CL7 on AMD platform
you may need to wait if there is new bios fixing this issue
thanks


G.S

[Lyme]

As the system has already been purchased and put together, are there any recommended settings other than the defaults?

[GSKILL TECH]

You will need to use tCL 8 - tRCD 7 - tRP 7 - tRAS 21 - Command Rate 2 timings.

Let me know the results and I will be able to further assist you.

Thank you
GSKILL SUPPORT

[Lyme]

Thank you for the help, those settings seem to be working well (did a windows 7 memory check, etc).
I've included a screenshot of the current memory settings. All the settings are tweakable in bios on the ROG crosshair III, but it is easier to show them through the AMD overdrive utility.

[Lyme]

After quite a few hours I got a BSOD, after doing some reading I expect the default voltage setting was wrong. I initally tried it at a little over 1.65v and my machine locked pretty quickly. I've scaled it back to a little over 1.6v and have been running Prime95 with 96% used physical memory for 20+ minutes without issue.

[Tradesman]

Where you might need the extra voltage will probably be to the CPU (to help the MC) if you run into problems under load

[Lyme]

Thanks Trandesman.

After a few days of stability, and pondering the timings, I decided to revise them to
1333 7-7-7-21 1T, instead of 1600 8-7-7-21 2T. That seems to give a slight improvement until I can figure out how to do that at 1600.

[G.SKILL]

if you would like to run DDR3 1600 with CL7 on AM3 platform, you need to wait for a while
ASUS is working on this issue now and will solve it soon
thanks


G.S

[Tradesman]

Might check your tRFC, with four sticks you'll want at least 195 for stability.

[Surf314]

Any word on when ASUS will have that BIOS update out? I'm having issues with my RAM too.

[G.SKILL]

should be released at the end of this week, but we're not totally sure
thanks


G.S

[mniqr]

I have this exact same setup on order. Let me know what you come up with as mine will be here friday and ill be playing around with settings.

[Lyme]

Asus put out the 1204 bios a few days ago, however the download seems to be bad.

[mniqr]

Have you tested the memory with memtest or anything i forget if you said you did?

I set mine to 8-7-7-24 and the first set of 4 tested bad.....same address every time. Put the next set of 4 gigs in and tested perfect with those timings. No problems at all, rock solid.