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Hi guys & gals: Please help me achieve a stable 4+ GHz O/C.

post #1 of 11
Thread Starter 
I can break 4 & a quarter GHz, but it's rather "hit & miss", meaning: Stable for maybe a day or so at a time. I can run IntelBurnTest (usually) w/o a hitch, but PRIME95 (especially) and Folding with the following settings have been known to cause this rig to go into spontaneous states of suspended animation (BSODs/system freezes).

I'm on water, so if it means crankin'-up my pump to run @ 100% 24/7, then fine by me.

Please gimme a shout if you would be so kind as to offer a few pointers, as I sure could use your help. Thanks ~ Bamm



Okay. Here are my n00bnostic settings. Try not to laugh too hard, and thanks very much for your expert assistance:

System Specs
System Board ( EVGA E758-A1 )
System Board Drivers ( Chipset: 9.1.2.1008 ~ Network: 5.41 )
Bios ( SZ77 )
CPU ( Intel i7-920DO )
CPU Cooler ( Swiftech H2O-320 + XSPC reservoir )
Memory ( [2x(3x2=6GB Kits)] 12GB Corsair TR3X6G1600C9 9 9 9 24 )
Memory Cooler ( Corsair CMXAF2 )
PSU ( Corsair HX650 )
GPU ( EVGA GTX 260 Core 216 x 2, in SLI )
GPU Drivers ( 266.58 )
Operating System ( Microsoft Windows 7 x64 Ultimate SP1 )

Frequency Control
CPU Clock Ratio ( 20X )
CPU Host Frequency (Mhz) ( 203 )
MCH Strap ( Auto )
CPU Uncore Frequency (Mhz) ( Auto )
CPU Clock Skew ( 0 ps )
IOH Clock Skew ( 0 ps )
Spread Spectrum ( Disabled )
PCIE Frequency (Mhz) ( 100 )
OC Recovery ( Enabled )
Turbo Performance ( Disabled )

Memory Feature
Memory SPD ( Standard )
Memory Control Setting ( Enabled )
Memory Frequency ( Auto: Target Memory Frequency 1626 MHz )
Channel Interleave Setting ( 6 Way )
Rank Interleave Setting ( 4 Way )
Memory Low Gap ( Auto )
tCL Setting ( Auto: 11 )
tRCD Setting ( Auto: 11 )
tRP Setting ( Auto: 11 )
tRAS Setting ( Auto: 29 )
tRFC Setting ( Auto: 88 )
Command Rate ( 2T )

Voltage Control
EVGA VDroop Control ( Without VDroop )
CPU VCore ( 1.37500V )
CPU VTT Voltage ( +300mV )
CPU PLL VCore ( 1.800V )
DIMM Voltage ( 1.650V )
DIMM DQ Vref ( +0mV )
QPI PLL VCore ( 1.150V )
IOH VCore ( 1.100V )
IOH/ICH I/O Voltage ( 1.500V )
ICH VCore ( 1.100V )
PWM Frequency ( 933 KHz )

CPU Feature
Intel SpeedStep ( Enabled )
Turbo Mode Function ( Enabled )
CxE Function ( Disabled )
Execute Disable Bit ( Disabled )
Virtualization Technology ( Enabled )
Intel HT Technology ( Enabled )
Active Processor Cores ( All )
QPI Control Settings ( Enabled )
QPI Link Fast Mode ( Enabled )
QPI Frequency Selection ( Auto: (no value given) )

PnP/PCI PCI Express
Maximum Payload Size ( 128 )
    
CPUMotherboardGraphicsRAM
i7-920 DO EVGA E758-A1 (1) EVGA GTX 580 Corsair XMS3 12GB DDR3 
Hard DriveOptical DriveCoolingOS
Western Digital WD5001AALS 500GB NEC ND-3500A Swiftech H2O-320 Edge Windows 7 Ultimate 64-bit 
MonitorKeyboardPowerCase
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MouseMouse PadAudio
Logitech MX510 Yes ; ) Creative SB X-Fi Titanium 
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Hard DriveOptical DriveCoolingOS
Western Digital WD5001AALS 500GB NEC ND-3500A Swiftech H2O-320 Edge Windows 7 Ultimate 64-bit 
MonitorKeyboardPowerCase
Samsung 2443BWT Logitech Elite Corsair AX1200 CM Stacker STC-T01 
MouseMouse PadAudio
Logitech MX510 Yes ; ) Creative SB X-Fi Titanium 
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post #2 of 11
I'm confused at what that "Vdroop control: without vdroop" means. Does this mean that Loadline calibration (reducing Vdroop) is ENABLED? or disabled? You want the droop to be reduced, or you could find yourself running at 1.3v while at full load, because of droop.

What's the CPU vcore shown at full load, when in windows?
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post #3 of 11
For 4.175

Frequency Control
CPU Clock Ratio ( 20X )
CPU Host Frequency (Mhz) ( 198 )
MCH Strap ( Auto )
CPU Uncore Frequency (Mhz) ( 16x, 3173)
CPU Clock Skew ( 0 ps )
IOH Clock Skew ( 0 ps )
Spread Spectrum ( Disabled )
PCIE Frequency (Mhz) ( 100 )
OC Recovery ( Enabled )
Turbo Performance ( Enabled )

Memory Feature
Memory SPD ( Standard )
Memory Control Setting ( Enabled )
Memory Frequency ( 1067: Target Memory Frequency 1580 MHz )
Channel Interleave Setting ( 6 Way )
Rank Interleave Setting ( 4 Way )
Memory Low Gap ( 2.5 )
tCL Setting ( 8 )
tRCD Setting ( 8 )
tRP Setting ( 8 )
tRAS Setting ( 24 )
tRFC Setting ( 88 )
Command Rate ( 1T )
tsrRDTRd: ( 6 )
tsrWrTWr: ( 6 )

Voltage Control
EVGA VDroop Control ( With VDroop )
CPU VCore ( 1.37500V )
CPU VTT Voltage ( +350mV )
CPU PLL VCore ( Auto (1.800V) )
DIMM Voltage ( 1.650V )
DIMM DQ Vref ( +0mV )
QPI PLL VCore ( 1.375V )
IOH VCore ( 1.325V )
IOH/ICH I/O Voltage ( 1.500V )
ICH VCore ( 1.100V )
PWM Frequency ( 933 KHz ) I have it at 940 KHz

CPU Feature
Intel SpeedStep ( Disabled )
Turbo Mode Function ( Enabled )
CxE Function ( Disabled )
Execute Disable Bit ( Disabled )
Virtualization Technology ( Disabled )
Intel HT Technology ( Enabled )
Active Processor Cores ( All )
QPI Control Settings ( Enabled )
QPI Link Fast Mode ( Enabled )
QPI Frequency Selection ( 4.800GT/s )

Tweak it as you see fit for 4.0 and above.
    
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80gb SSD, 2x640 Black, 2x1TB Green, 640 Green Samsung DVD-RW W7 64bit 1920x1200 Asus 25.5 incher 
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post #4 of 11
Thread Starter 
Thanks for the 4-1-1, YellowToblerone.


Falken, I'm probably the least qualified person to address your VDroop question but, from what I've gathered, it's best to have "VDroop Control" set to "VDroop Enabled" (even though I don't, right now), so as to limit the "spike" voltage available to the CPU.

I ran across this web page from AnandTech a while back and, while it doesn't directly address my i7, nonetheless graphically demonstrates the meaning of "VDroop":

Overclocking Intel's New 45nm QX9650: The Rules Have Changed


CPU VCore @ full load w/ IntelBurnTest per EVGA E-LEET = 1.41
    
CPUMotherboardGraphicsRAM
i7-920 DO EVGA E758-A1 (1) EVGA GTX 580 Corsair XMS3 12GB DDR3 
Hard DriveOptical DriveCoolingOS
Western Digital WD5001AALS 500GB NEC ND-3500A Swiftech H2O-320 Edge Windows 7 Ultimate 64-bit 
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Samsung 2443BWT Logitech Elite Corsair AX1200 CM Stacker STC-T01 
MouseMouse PadAudio
Logitech MX510 Yes ; ) Creative SB X-Fi Titanium 
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CPUMotherboardGraphicsRAM
i7-920 DO EVGA E758-A1 (1) EVGA GTX 580 Corsair XMS3 12GB DDR3 
Hard DriveOptical DriveCoolingOS
Western Digital WD5001AALS 500GB NEC ND-3500A Swiftech H2O-320 Edge Windows 7 Ultimate 64-bit 
MonitorKeyboardPowerCase
Samsung 2443BWT Logitech Elite Corsair AX1200 CM Stacker STC-T01 
MouseMouse PadAudio
Logitech MX510 Yes ; ) Creative SB X-Fi Titanium 
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post #5 of 11
I cant remember do i7 920 have a 21 multi? or do they only go to 20? if so try up your multi to 21 and turn turbo mode off.
post #6 of 11
Quote:
Originally Posted by Falkentyne View Post
I'm confused at what that "Vdroop control: without vdroop" means. Does this mean that Loadline calibration (reducing Vdroop) is ENABLED? or disabled? You want the droop to be reduced, or you could find yourself running at 1.3v while at full load, because of droop.

What's the CPU vcore shown at full load, when in windows?
Enabled will be LLC enabled.


Quote:
Originally Posted by PsYLoR View Post
I cant remember do i7 920 have a 21 multi? or do they only go to 20? if so try up your multi to 21 and turn turbo mode off.
They do but only certain boards / BIOS's can use it. If you can, use 21x

Either way though, you could even do better on a 19x multiplier tbh. i7's are notoriously bad on even multipliers but that will probably peak the limits of the board's baseclock.

Also, two things you will def need to control: QPI frequency, turn that down as low as it will go without going onto "slow" setting, and your uncore should be set to twice the speed of the RAM, maybe one or two notches above.

I think you'll then find your V-Core can come down a lot.

Also, your RAM, is that 1067 RAM running at 1500? Because I very much doubt that will be stable if it is.

No, RAM speed is fine, but... You have 12 gigs, which will make it harder to OC, meh should be ok for 4GHz I guess.
Edited by Crabid - 3/22/11 at 3:32am
    
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post #7 of 11
Thread Starter 
Very valuable advice, Crabid. Thanks, mate!
    
CPUMotherboardGraphicsRAM
i7-920 DO EVGA E758-A1 (1) EVGA GTX 580 Corsair XMS3 12GB DDR3 
Hard DriveOptical DriveCoolingOS
Western Digital WD5001AALS 500GB NEC ND-3500A Swiftech H2O-320 Edge Windows 7 Ultimate 64-bit 
MonitorKeyboardPowerCase
Samsung 2443BWT Logitech Elite Corsair AX1200 CM Stacker STC-T01 
MouseMouse PadAudio
Logitech MX510 Yes ; ) Creative SB X-Fi Titanium 
  hide details  
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CPUMotherboardGraphicsRAM
i7-920 DO EVGA E758-A1 (1) EVGA GTX 580 Corsair XMS3 12GB DDR3 
Hard DriveOptical DriveCoolingOS
Western Digital WD5001AALS 500GB NEC ND-3500A Swiftech H2O-320 Edge Windows 7 Ultimate 64-bit 
MonitorKeyboardPowerCase
Samsung 2443BWT Logitech Elite Corsair AX1200 CM Stacker STC-T01 
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post #8 of 11
Any luck?
    
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post #9 of 11
Thread Starter 
Wellsir, I'm currently in "fact-finding" mode, meaning, I'd like to gather as many tips, tricks, and words of advice from my betters as possible before performing a "Blockpoint BIOS Revision".

I've also posted my request for assistance at the EVGA Forum so, between the crew over there and you fine folks, I hope to develop a formidable overclocking strategy indeed!

    
CPUMotherboardGraphicsRAM
i7-920 DO EVGA E758-A1 (1) EVGA GTX 580 Corsair XMS3 12GB DDR3 
Hard DriveOptical DriveCoolingOS
Western Digital WD5001AALS 500GB NEC ND-3500A Swiftech H2O-320 Edge Windows 7 Ultimate 64-bit 
MonitorKeyboardPowerCase
Samsung 2443BWT Logitech Elite Corsair AX1200 CM Stacker STC-T01 
MouseMouse PadAudio
Logitech MX510 Yes ; ) Creative SB X-Fi Titanium 
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CPUMotherboardGraphicsRAM
i7-920 DO EVGA E758-A1 (1) EVGA GTX 580 Corsair XMS3 12GB DDR3 
Hard DriveOptical DriveCoolingOS
Western Digital WD5001AALS 500GB NEC ND-3500A Swiftech H2O-320 Edge Windows 7 Ultimate 64-bit 
MonitorKeyboardPowerCase
Samsung 2443BWT Logitech Elite Corsair AX1200 CM Stacker STC-T01 
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post #10 of 11
That's cool.

You'll prob want to check this out then if you haven't already: awesome guide
    
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CPUMotherboardGraphicsRAM
e5645 @ 4.2Ghz P6X58D-E 5450 x2 6Gb Corsair Dominator 1600 
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