Gigabyte GA-EX58-UD4P and 2 kits of TR3X6G1600C9

[cemc]

I have the same mobo and memory, but with 2x 6GB kit, and it won't run at 1600. I tried setting everything back to failsafe, then it says it's 1066 (133*8) with CPU 2.66GHz (133*20) which works fine.

 

But when I enable XMP (Profile1) it won't boot. I set the Performance thingy back to Standard (as opposed to Turbo or Extreme).

 

My BIOS is the latest (F8), the only newer version is F10b, but that's beta. Should I try it ? I doubt it will help.

 

Anything else to try to get it to 1600?

 

And one other thing. I played around a bit, and set it up like this: CPU 166*16 (=2.66Ghz) and DRAM 166*8 (=1328MHz), and it seems to work, and the mobo didn't complain. Is this considered overclocked ? Everything else is on Auto, I didn't mess around with the voltages either.

 

In the mobo's manual it says "Support for DDR3 2100/1333/1066/800 MHz memory modules". Does this mean it DOESN'T support 1600 modules?? and is this TR3X6G1600C9 1600 even? Because memtest says there are 6 PC3-10660 CM3X2G1600C9 in the slots.

 

I'm confused. Any help appreciated. Thanks.

[Wired]

There's no guarantees that 2 kits will work together, let alone at their rated speeds.

 

Your motherboard supports memory in that speed range. As for PC3-10666 in the SPD, that's a static field and will never change.

[cemc]

What should I do? If I try one kit (3x2gb) at a time, and it works, but together they don't... I need to get a 12gb kit ?

[RAM GUY]

It would be best to use one of our 12 Gig sets, mixing two sets together will be hit and miss.