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XMP mode setting the wrong QPI/DRAM voltage?

post #1 of 5
Thread Starter 
Hi, I have a question about the XMP mode on my memory. I noticed when everything is in factory settings QPI/DRAM voltage is set to AUTO.

But when i set mem profile to XMP the DRAM goes to 1.66 approx, this is fine i believe since my mobo wont let me hit 1.65 spot on.
But the wierd thing is it also sets the QPI to 1.2? Isnt this a bit short?

And this is all automatic so its not me changing anything, other then enabling XMP mode.

I got one BSOD, bccode 124, which I believe has to do with the memory? This is pretty much my first ever BSOD. I didnt enable XMP b4, just couldnt be bothered.

I should say though that when i got this BSOD I acctually did bump the DRAM voltage back to abt 1.64 since i got that red text warning stating above 1.65 is dangerous. So maybe it wasnt the QPI that caused the problem but acctually the DRAM voltage beeing to low.

Anyway what do you guys think?
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First own build!
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i7 950 Rampage 3 Formula Gigabyte Geforce GTX 580 SOC Corsair 6GB DDR3 XMS3 PC12800 
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Intel X25-M 80GB SSD MLC + HD 7K1000.C 1TB Samsung DVD±R/RW/RAM DL 22X Windows 7 Home 64-bit BenQ E2220HD 22" 
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post #2 of 5
For X58 those voltages are fine. A 950 will probably need more QPI/Vtt, you can try to increase this voltage and stop at 1.375v is you can't stabilize at the RAM rated specs. Other than these voltages, you might want to set the timings manually in BIOS such as 8-9-8-24 1T or 2T as specifications.
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post #3 of 5
Edit: Wrong thread.
Edited by tomterrific - 10/2/11 at 9:39am
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post #4 of 5
Thread Starter 
Ok I set the QPI/DRAM core to 1.25 and it seems it did the trick. The BSOD occured when I ran Linx and now it didnt happen so Im guessing im ok, I will do some more checking ofc, any advice on ways? Is memtest86+ a way or is that just for checking flaws in the acctuall RAM hardware?

perhaps Linx(IBT) is a good enough way to check the stability of your ram settings, seeing as you can choose to utilize your entire free memory for the test?

oh and thx for the help much appreciated


All the best!
First own build!
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i7 950 Rampage 3 Formula Gigabyte Geforce GTX 580 SOC Corsair 6GB DDR3 XMS3 PC12800 
Hard DriveOptical DriveOSMonitor
Intel X25-M 80GB SSD MLC + HD 7K1000.C 1TB Samsung DVD±R/RW/RAM DL 22X Windows 7 Home 64-bit BenQ E2220HD 22" 
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First own build!
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 950 Rampage 3 Formula Gigabyte Geforce GTX 580 SOC Corsair 6GB DDR3 XMS3 PC12800 
Hard DriveOptical DriveOSMonitor
Intel X25-M 80GB SSD MLC + HD 7K1000.C 1TB Samsung DVD±R/RW/RAM DL 22X Windows 7 Home 64-bit BenQ E2220HD 22" 
KeyboardPowerCaseMouse
Sidewinder X4 Corsair HX 750W ATX12V 2.3 / EPS12V CM 690 II Advanced Intellimouse Explorer 3.0 
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post #5 of 5
I normally run IBT 5 passes Maximum setting that will test all the available RAM. Final Memtest86+.
ケンジ
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CPUCPUMotherboardGraphics
i7-3960X i7-980X GA-X79-UD7 / GA-X58A-UD9 7970 + 465 
GraphicsRAMRAMHard Drive
2x 6990 + 580 16GB 2133 MHz 24GB 2000 MHz 120GB x 2 RAID0 
Hard DriveHard DriveCoolingCooling
120GB x 4 RAID0 Raptor 300GB x 2 RAID0 CPU-370 CPU-370 
CoolingCoolingOSPower
VID-AR699 EK FB X58A-UD9 Win 7 Ultimate x64 1500W / 1250W+1200W 
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ケンジ
(16 items)
 
  
CPUCPUMotherboardGraphics
i7-3960X i7-980X GA-X79-UD7 / GA-X58A-UD9 7970 + 465 
GraphicsRAMRAMHard Drive
2x 6990 + 580 16GB 2133 MHz 24GB 2000 MHz 120GB x 2 RAID0 
Hard DriveHard DriveCoolingCooling
120GB x 4 RAID0 Raptor 300GB x 2 RAID0 CPU-370 CPU-370 
CoolingCoolingOSPower
VID-AR699 EK FB X58A-UD9 Win 7 Ultimate x64 1500W / 1250W+1200W 
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