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Memory slowing down with overclocking.

post #1 of 8
Thread Starter 
When I start overclocking, my RAM setting adjust to slower speeds. When I try to manually set them after overclocking, the machine won't start. I had this same ram and CPU in a P6X58D and had it stable at 4.2 GHz for a year, not sure what's up with this EVGA MOBO.


Machine:
MOBO: EVGA x58 FTW
CPU: Intel i7 930
MEMORY: Corsair Vengeance 12 GB : 3 x 4 GB Memory - 1600 MHz (9-9-9-24, CL9, 1.5V)








post #2 of 8
Try boosting memory voltage - 12GB is tougher than 6GB to run, therefore harder to o/c, so it usually takes more voltage. I would set it at 1.64v (1.65 in some bios)
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CPUGraphicsRAMHard Drive
Intel i7 2860QM AMD Radeon HD 6770M Corsair Vengence 1600MHz Samsung 840 Pro 256GB 
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The Laptop
(6 items)
 
  
CPUGraphicsRAMHard Drive
Intel i7 2860QM AMD Radeon HD 6770M Corsair Vengence 1600MHz Samsung 840 Pro 256GB 
OSMonitor
Mac OS X 10.8 1680 x 1050 anti-glare high resolution  
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post #3 of 8
Thread Starter 
Quote:
Originally Posted by appleg33k85 View Post
Try boosting memory voltage - 12GB is tougher than 6GB to run, therefore harder to o/c, so it usually takes more voltage. I would set it at 1.64v (1.65 in some bios)
Isn't that a bad idea when it's a 1.5 V rated ram?
post #4 of 8
Still the same chips as 1.65V memory, just rated to run the speed & timings at 1.5V which is recommended for sandy bridge.
Probably not just the memory voltage though, running 12Gb instead of 6Gb will work the IMC harder, so likely needs more qpi/vtt voltage.
    
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CPUMotherboardGraphicsRAM
i7 990x/3930k/3770k/4770k GB x58a-OC/Asus RIVE/x79 gd65/z77 mpower/z77 MV... gtx480s/gtx580s/7970s/680s/Titan Hyper/PSC/BBSE/Hynix/Samsung 
Hard DriveOptical DriveCoolingOS
HDDs/SSDs DVD Air/water/phase/copper pot Windowz 
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samsung 2320 Razer Lycosa ax1200 carboard box 
Mouse
Trackball 
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post #5 of 8
Thread Starter 
Quote:
Originally Posted by FtW 420 View Post
Still the same chips as 1.65V memory, just rated to run the speed & timings at 1.5V which is recommended for sandy bridge.
Probably not just the memory voltage though, running 12Gb instead of 6Gb will work the IMC harder, so likely needs more qpi/vtt voltage.
I have VTT at +100. I'll try upping the ram to 1.65 and see if that works. It's definitely not stable where it's at now.
post #6 of 8
Thread Starter 
I adjusted the memory voltage to 1.65 and it didn't change anything with it set to auto. Should I be trying to set it manually at this point?
post #7 of 8
Thread Starter 
What's killing me is that, by changing out MOBOs (the other died), I'm losing 10 or so FPS in my games. It does seem like a memory issue because it's mostly when NPCs are around.
post #8 of 8
Thread Starter 
Bah... I guess I'll come and go as a noob lame. Anyway, thanks for the advice from the 2 that had any.
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