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I7 920 can't OC to 4.0ghz

458 Views 3 Replies 3 Participants Last post by  gooddog
I have been running 3.6ghz w/ HT Off(since its no use)

Specs:

Core I7 920
Gigabyte X58 UD5
Coolermaster V8
OCZ XMP Ready Series 6GB DDR3 12800 ~ 1600

Current OC STABLE:

Multiplier/BCLK: 200x18 -> 3.6ghz (Temps around 60-66 at load)
Vcore:1.275
QPI/VTT: 1.240v
IOH Core:Auto
Dram: 1.66v
QPI Link Speed: X36
Uncore: 16X
Mem Multiplier: 8X
Mem SPD ratio: 2:8 @1600mhz
Timings: 8, 8, 8, 24

Load-Line Calibration: Enabled
Multi Thread: Disabled
CPU Enhanced Halt C1E: Disabled
C3/C6/C7 State Support: Disabled
CPU EIST Function: Disabled
CPU TM Function: Enabled
Turbo Boost: Disabled

When i try going for 4.0ghz its always unstable, always get the blue screen


Multiplier/BCLK: 200x20
Vcore: 1.35
QPI/VTT: 1.240v also tried 1.36
IOH Core:Auto
Dram: 1.66v
QPI Link Speed: X36
Uncore: 16X
Mem Multiplier: 8X
Mem SPD ratio: 2:8 @1600mhz
Timings: 8, 8, 8, 24
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More volts?
and HT has its uses : p
I vaguely remember that the uncore might need to be twice as much as mem +1.
Adjusts volts to that aswell.
and the QPI/VTT volts shouldnt you keep them around te Vcore voltage?

Try to read more overclocking guides and experiment a little bit.
Quote:

Originally Posted by Inktfish View Post
More volts?
and HT has its uses : p
I vaguely remember that the uncore might need to be twice as much as mem +1.
Adjusts volts to that aswell.
and the QPI/VTT volts shouldnt you keep them around te Vcore voltage?

Try to read more overclocking guides and experiment a little bit.
It's a bit confusing, different guides, different suggestions, some even say QPI/VTT should be 1.35 yet some say above 1.33 = dangerous.

My Memory Multiplier is 8X so Uncore Multiplier is 16X.
I am afraid going above 1.35 volts, Been looking around and still people haven't figured out yet whats the safe voltages, i have seen some go above 1.4-1.5 even too afraid to do that.
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