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RAM not stable @ 1600mhz; solution?

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  • Memory
  • RAM
  • Product
Last response: in Memory
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December 13, 2010 3:44:01 PM

Hi all,

I recently put a gaming rig together and I'm having problems getting my RAM to stabilize @ 1600mhz. Right now it's currently sitting @ 1066mhz, where the mobo put it at upon first boot.

The computer works fine @ 1066, but once I try to use the 1600mhz profile in my BIOS, I start Windows and usually get about 10-15 minutes into what I'm doing before I get a BSOD and memory dumping.

I'm using the following MOBO and RAM:

ASUS Sabertooth X58 LGA 1366 Intel X58 SATA 6Gb/s USB 3.0 ATX Intel Motherboard

+

G.SKILL 6GB (3x2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Triple Channel Kit -

http://www.newegg.com/Product/Product.aspx?Item=N82E168... (link option not working! :pt1cable:  )

The motherboard detects all 6GB of RAM. Runs fine @ 1066mhz. I manually set the timings to the specifications of my specific RAM modules (9-9-9-24). Once I try to bump to 1600mhz using the BIOS profile options, it's no good. I use CPUID to detect speeds. I have achieved 1600 before, its just seriously unstable.

Are there other solutions I can try? Anyone have any ideas?

More about : ram stable 1600mhz solution

December 13, 2010 3:49:39 PM

What voltage are you at when you bump your BIOS to run at 1600MHz? That memory is good from 1.5v to 1.6v. You are probably needing a bump up to run at that speed (closer to 1.6v).
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December 13, 2010 3:54:02 PM

sadams04 said:
What voltage are you at when you bump your BIOS to run at 1600MHz? That memory is good from 1.5v to 1.6v. You are probably needing a bump up to run at that speed (closer to 1.6v).


I'll have to double check. When I select the 1600mhz profile in BIOS I receive a notification that the RAM might consequently require higher voltage. It then asks whether or not I will allow an increase in voltage. I always say yes, though I don't know off the top of my head what it comes in at after I boot @ 1600mhz.
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a c 347 } Memory
December 13, 2010 4:00:41 PM

I agree with the DRAM Voltage needing to be set within spec, and if needed I too would change the QPI/DRAM Voltage 1.2~1.3v and maybe 1.35v if DRAM Voltage is 1.6v. 9-9-9-24-2N => 9-9-9-24-2T also set the DRAM Timing Mode 2T.
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December 13, 2010 11:56:22 PM

My DRAM Timing Modes from what I could see were Auto, 1N, 2N, or 3N. I made it 2N.

Under CPUID My command rate is coming up as 2T.

Currently I have the computer running @ 1600mhz and it seems more stable. Going to have to memtest now I suppose.

Jaquith -- Is QPI/DRAM voltage much different than just straight DRAM voltage? I guess I'm just not sure why you would set QPI/DRAM voltage at 1.2~1.3 if the DRAM suggested voltage is 1.5v-1.6v. But I did as you suggested; took the QPI/DRAM voltage off of "Auto" and manually plugged in 1.30000 v.
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Best solution

a c 347 } Memory
December 14, 2010 12:54:55 PM

2N = 2T; same thing. QPI/DRAM is the CPU Memory controller, and yes frequently it needs to be increased if the RAM is unstable. Ideally difference is QPI/DRAM = DRAM Voltage - 0.3v. If you're stable then you're good.

Also, if you OC the CPU it's good to have the RAM manually set, and in particular the voltage. The {Auto} always seems to over-volt the RAM otherwise.
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December 18, 2010 11:47:12 PM

Best answer selected by Eldaer.
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