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Will not cold boot after NB overclock

post #1 of 4
Thread Starter 
So as the title says, My pc will not cold boot (after total system shutdown) after a north bridge overclock. I was "stable" (in quote, because it passes benchmarking and stress tests, but will not post) at a 2400 mhz overclock (x12) at 1.35 volts and a CPU clock of 3.7 on my 955 C2. Every time I shut down, i need to reset the bios via the jumper, since it will not even post.

Any ideas? I am thinking of trying a lower clock, like 2200mhz, but I feel the outcome will be the same, especially since the voltage is quite high in comparison to what other people i have seen get at 1.35v on the NB.
AM3
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AM3
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Phenom II 955 BE C2 Gigabyte 790XTA-UD4 (2600mhz NB) Sapphire 6850 8gb (4gbx2) G.Skill RipjawsX 
Hard DriveOptical DriveOSMonitor
Corsair x32 SSD and Caviar Blue 500gb x2 LG Bluray Burner, Sony DVD writer Windows 7 x64 25" I-Inc 
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OCZ Mod Xtreme 500W Xion Saitek R.A.T. 7 
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post #2 of 4
Lowering the clock should help if not try lowering both.
    
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post #3 of 4
Having the same issue past 2400....

Been playing with it, and I think trying to give the ram more power will be the next on my list. I read that higher NB takes more ram V
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post #4 of 4
Thread Starter 
Quote:
Originally Posted by RussianJ View Post
Having the same issue past 2400....

Been playing with it, and I think trying to give the ram more power will be the next on my list. I read that higher NB takes more ram V
This actually sort of makes sense, since I can't even get it to the memory POST screen, and just have a blank display...


I still find it strange that if I reset it and load into windows with my "overclock" it runs fine and passes any test until I turn the computer off, then it wont turn on...
AM3
(13 items)
 
  
CPUMotherboardGraphicsRAM
Phenom II 955 BE C2 Gigabyte 790XTA-UD4 (2600mhz NB) Sapphire 6850 8gb (4gbx2) G.Skill RipjawsX 
Hard DriveOptical DriveOSMonitor
Corsair x32 SSD and Caviar Blue 500gb x2 LG Bluray Burner, Sony DVD writer Windows 7 x64 25" I-Inc 
PowerCaseMouse
OCZ Mod Xtreme 500W Xion Saitek R.A.T. 7 
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AM3
(13 items)
 
  
CPUMotherboardGraphicsRAM
Phenom II 955 BE C2 Gigabyte 790XTA-UD4 (2600mhz NB) Sapphire 6850 8gb (4gbx2) G.Skill RipjawsX 
Hard DriveOptical DriveOSMonitor
Corsair x32 SSD and Caviar Blue 500gb x2 LG Bluray Burner, Sony DVD writer Windows 7 x64 25" I-Inc 
PowerCaseMouse
OCZ Mod Xtreme 500W Xion Saitek R.A.T. 7 
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