Overclock.net › Forums › Intel › Intel CPUs › Help! Unstable i7 950 @ 4GHz
New Posts  All Forums:Forum Nav:

Help! Unstable i7 950 @ 4GHz

post #1 of 25
Thread Starter 
So I'm trying to get a stable 4.0Ghz OC on my i7 950, but I couldn't find any good 950 overclock guide for my motherboard Asus P6X58D-E, so I followed a i7 920 4.0Ghz one, and changed the voltage a bit so this is what it's set to right now:

Intel(r) SpeedStep(tm) Tech............[Disabled]
Xtreme Phase Full Power Mode...........[Enabled]
BCLK Frequency.........................[191]
PCIE Frequency.........................[100]
DRAM Frequency.........................[DDR3-1531MHz]
UCLK Frequency.........................[3063MHz]
QPI Link Data Rate.....................[Auto]

CPU Voltage Control....................[Manual]
CPU Voltage............................[1.30625]
CPU PLL Voltage........................[1.80]
QPI/DRAM Core Voltage..................[1.23125]
IOH Voltage............................[1.12]
IOH PCIE Voltage.......................[1.50]
ICH Voltage............................[1.20]
ICH PCIE Voltage.......................[1.50]
DRAM Bus Voltage.......................[1.64]
DRAM DATA REF Voltage on CHA...........[Auto]
DRAM CTRL REF Voltage on CHA...........[Auto]
DRAM DATA REF Voltage on CHB...........[Auto]
DRAM CTRL REF Voltage on CHB...........[Auto]
DRAM DATA REF Voltage on CHC...........[Auto]
DRAM CTRL REF Voltage on CHC...........[Auto]

Load-Line Calibration..................[Enabled]
CPU Differential Amplitude.............[800mV]
CPU Clock Skew.........................[Delay 300ps]
CPU Spread Spectrum....................[Disabled]
IOH Clock Skew.........................[Auto]
PCIE Spread Spectrum...................[Disabled]

C1E Support............................[Disabled]
Hardware Prefetcher....................[Enabled]
Adjacent Cache Line Prefetch...........[Enabled]
Intel(r) Virtualization Tech...........[Disabled]
CPU TM Function........................[Disabled]
Execute Disable Bit....................[Enabled]
Intel(r) HT Technology.................[Enabled]
Active Processor Cores.................[All]
A20M...................................[Disabled]
Intel(r) SpeedStep(tm) Tech............[Disabled]
Intel(r) C-STATE Tech..................[Disabled] [/SIZE]

The temperature is about 38C in idle, and 70C in load when using prime95 blend. I primed it for about 2 hours until it BSODed. I've been raising the vCore, but I don't think a low vCore is the reason behind my BSODs.

Might it be the memory giving up? I'm using Corsair XMS3 DDR3 1600MHz 6GB CL7.

I'm using a Noctua NH-D14 to cool my CPU.
My rig:

GTX 470 SOC
i7 950
Asus P6X58D-E
XMS3 DDR3 1600 MHz GB CL7
Corsair SandForce 120GB
Samsung Spinpoint F3 1TB
Noctua NH-D14
CM HAF X

Could you help me identify the problem?
Pretty chill.
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core 2 Quad Q6600 @ 3.0 Ghz Asus Striker Extreme nVidia Geforce 9800GX2 OCZ Reaper 4GB 
Hard DriveOSKeyboardPower
Western Digital Caviar 500GB Windows 7 x64 Ultimate Logitech Corsair 620W Modular 
CaseMouseMouse Pad
CM HAF 932 Steelseries Xai Steelseries 9HD 
  hide details  
Reply
Pretty chill.
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core 2 Quad Q6600 @ 3.0 Ghz Asus Striker Extreme nVidia Geforce 9800GX2 OCZ Reaper 4GB 
Hard DriveOSKeyboardPower
Western Digital Caviar 500GB Windows 7 x64 Ultimate Logitech Corsair 620W Modular 
CaseMouseMouse Pad
CM HAF 932 Steelseries Xai Steelseries 9HD 
  hide details  
Reply
post #2 of 25
QPI Dram looks low- not sure if you need your skew enabled yet either. Execute disable bit can probably come off too- but QPI is WAY too low... CPU is on the cusp and might need at LEAST one more notch.

Other than that nice work.
DireWolf
(13 items)
 
  
CPUMotherboardGraphicsRAM
980X Asus P6T Deluxe V2 GTX 460 6G Patriot 
Hard DriveOptical DriveOSMonitor
80GB Intel X-25; 1.5TB WD LG DVD Windows 7 Ultimate 64 24T Syncmaster 
PowerCaseMouse
850W Corsair HAF X G500 
  hide details  
Reply
DireWolf
(13 items)
 
  
CPUMotherboardGraphicsRAM
980X Asus P6T Deluxe V2 GTX 460 6G Patriot 
Hard DriveOptical DriveOSMonitor
80GB Intel X-25; 1.5TB WD LG DVD Windows 7 Ultimate 64 24T Syncmaster 
PowerCaseMouse
850W Corsair HAF X G500 
  hide details  
Reply
post #3 of 25
Curiosity question, did you find the x23 multiplier unstable or were you just going off the 920 guide in setting multiplier? If it is stable with x23 you could probably get lower vCore and better temps, since you would only need 175 BCLK.
DD Boxen
(23 items)
 
   
CPUMotherboardGraphicsRAM
Intel Xeon E3-1230 Asus Maximus IV Gene-Z/Gen3 Powercolor 6970 2GB G. Skill 1600mHz Ripjaws 
Hard DriveOptical DriveCoolingCooling
SpinpontF3 1TB, WD 250, and WD320 Lite-On DT Waterblocks DT5Noz Waterblock Swiftech Komodo 6900-1 Waterblock 
CoolingCoolingCoolingOS
Swiftech MCR-220 Drive radiator Swiftech MCR-220 QP radiator 6xGentle Typhoon AP-15s Archx64 KDE4.5, Windows 7 x64 
MonitorKeyboardPowerCase
Eyefinity 3-head 5265x1050 OCN Ducky!! MX Blue Switches XFX 750W Black Edition Mountain Mods H2gO 
MouseAudioAudioAudio
Razer Naga Asus Xonar Essence STX Sennheiser 595 Sony STR-DE995 A/V receiver 
OtherOther
Lian Li Card flash memory reader Asus PCE-N15 Wifi-N card 
CPUMotherboardGraphicsRAM
AMD 1055T Gigabyte 790 Sapphire 4850x2 2x2GB 1600mHz 
Hard DriveOptical DriveOSKeyboard
A few Yes Vista/7 Das Keyboard 
Power
Ugly 
CPUMotherboardGraphicsRAM
Qualcomm Snapdragon APQ8060 1.2 GHz Something kinda small Qualcomm Adreno core 16GB 
Hard DriveOptical DriveOSMonitor
None N/A WebOS 3.0.2 9.7" XGA, multitouch 
PowerCase
6300mAh Piano Black 
  hide details  
Reply
DD Boxen
(23 items)
 
   
CPUMotherboardGraphicsRAM
Intel Xeon E3-1230 Asus Maximus IV Gene-Z/Gen3 Powercolor 6970 2GB G. Skill 1600mHz Ripjaws 
Hard DriveOptical DriveCoolingCooling
SpinpontF3 1TB, WD 250, and WD320 Lite-On DT Waterblocks DT5Noz Waterblock Swiftech Komodo 6900-1 Waterblock 
CoolingCoolingCoolingOS
Swiftech MCR-220 Drive radiator Swiftech MCR-220 QP radiator 6xGentle Typhoon AP-15s Archx64 KDE4.5, Windows 7 x64 
MonitorKeyboardPowerCase
Eyefinity 3-head 5265x1050 OCN Ducky!! MX Blue Switches XFX 750W Black Edition Mountain Mods H2gO 
MouseAudioAudioAudio
Razer Naga Asus Xonar Essence STX Sennheiser 595 Sony STR-DE995 A/V receiver 
OtherOther
Lian Li Card flash memory reader Asus PCE-N15 Wifi-N card 
CPUMotherboardGraphicsRAM
AMD 1055T Gigabyte 790 Sapphire 4850x2 2x2GB 1600mHz 
Hard DriveOptical DriveOSKeyboard
A few Yes Vista/7 Das Keyboard 
Power
Ugly 
CPUMotherboardGraphicsRAM
Qualcomm Snapdragon APQ8060 1.2 GHz Something kinda small Qualcomm Adreno core 16GB 
Hard DriveOptical DriveOSMonitor
None N/A WebOS 3.0.2 9.7" XGA, multitouch 
PowerCase
6300mAh Piano Black 
  hide details  
Reply
post #4 of 25
Bumping up the PCIE to 102-104 sometimes helps, like it did for me, but on an 870. Did you check the RAM strap and timings? They can be causing instability. Lowering the BCLK and upping the multi to 24 for me worked out, and loosening the DRAM strap and timings to 2:8 or lower helps plenty. As mentioned before, QPI/DRAM volts are a little low.

How's your CPU VTT looking?
 
Asus 1025C-MU17
(8 items)
 
 
CPUMotherboardGraphicsRAM
Core i5 3570K - 4.4GHz 1.2V Asrock Z77E-ITX EVGA GTX 950 SSC Samsung 30nm 2x4GB - 2000 9-10-10-21 
Hard DriveHard DriveHard DriveOptical Drive
Hitachi Deskstar 320GB Samsung 840 Pro 256GB Hitachi Travelstar 320GB Panasonic UJ8C5 
CoolingCoolingOSMonitor
Corsair H60 2x Cougar V12HPB PWM Windows 7 Pro 64-bit Samsung 2033 
KeyboardCaseMouse
Quickfire TK MX Red NCASE M1 No. 635 Razer Deathadder Chroma 
CPUGraphicsRAMHard Drive
Intel Atom N2600 1.6GHz Powertel GMA SGX545 2GB Corsair 1066MHz Samsung 830 64GB 
CoolingOSMonitorKeyboard
20mm blower Windows 7 Ultimate 32bit 10.1" 1024 x 600 Cookie Cutter 
  hide details  
Reply
 
Asus 1025C-MU17
(8 items)
 
 
CPUMotherboardGraphicsRAM
Core i5 3570K - 4.4GHz 1.2V Asrock Z77E-ITX EVGA GTX 950 SSC Samsung 30nm 2x4GB - 2000 9-10-10-21 
Hard DriveHard DriveHard DriveOptical Drive
Hitachi Deskstar 320GB Samsung 840 Pro 256GB Hitachi Travelstar 320GB Panasonic UJ8C5 
CoolingCoolingOSMonitor
Corsair H60 2x Cougar V12HPB PWM Windows 7 Pro 64-bit Samsung 2033 
KeyboardCaseMouse
Quickfire TK MX Red NCASE M1 No. 635 Razer Deathadder Chroma 
CPUGraphicsRAMHard Drive
Intel Atom N2600 1.6GHz Powertel GMA SGX545 2GB Corsair 1066MHz Samsung 830 64GB 
CoolingOSMonitorKeyboard
20mm blower Windows 7 Ultimate 32bit 10.1" 1024 x 600 Cookie Cutter 
  hide details  
Reply
post #5 of 25
Thread Starter 
Quote:
Originally Posted by Skripka View Post
Curiosity question, did you find the x23 multiplier unstable or were you just going off the 920 guide in setting multiplier? If it is stable with x23 you could probably get lower vCore and better temps, since you would only need 175 BCLK.
Honestly, I just followed the 920 guide. But using a 23x multiplier might just get me better temps, and that's a good suggestion. But my main priority right now is to get the 4.0GHz stable

When it's stable at 21x multiplier, I'll make sure I try 23x!
Pretty chill.
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core 2 Quad Q6600 @ 3.0 Ghz Asus Striker Extreme nVidia Geforce 9800GX2 OCZ Reaper 4GB 
Hard DriveOSKeyboardPower
Western Digital Caviar 500GB Windows 7 x64 Ultimate Logitech Corsair 620W Modular 
CaseMouseMouse Pad
CM HAF 932 Steelseries Xai Steelseries 9HD 
  hide details  
Reply
Pretty chill.
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core 2 Quad Q6600 @ 3.0 Ghz Asus Striker Extreme nVidia Geforce 9800GX2 OCZ Reaper 4GB 
Hard DriveOSKeyboardPower
Western Digital Caviar 500GB Windows 7 x64 Ultimate Logitech Corsair 620W Modular 
CaseMouseMouse Pad
CM HAF 932 Steelseries Xai Steelseries 9HD 
  hide details  
Reply
post #6 of 25
Thread Starter 
Quote:
Originally Posted by Eno75 View Post
QPI Dram looks low- not sure if you need your skew enabled yet either. Execute disable bit can probably come off too- but QPI is WAY too low... CPU is on the cusp and might need at LEAST one more notch.

Other than that nice work.
I'll raise the QPI Dram a few notches, thank you very much!

Sorry for double post! <3
Pretty chill.
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core 2 Quad Q6600 @ 3.0 Ghz Asus Striker Extreme nVidia Geforce 9800GX2 OCZ Reaper 4GB 
Hard DriveOSKeyboardPower
Western Digital Caviar 500GB Windows 7 x64 Ultimate Logitech Corsair 620W Modular 
CaseMouseMouse Pad
CM HAF 932 Steelseries Xai Steelseries 9HD 
  hide details  
Reply
Pretty chill.
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core 2 Quad Q6600 @ 3.0 Ghz Asus Striker Extreme nVidia Geforce 9800GX2 OCZ Reaper 4GB 
Hard DriveOSKeyboardPower
Western Digital Caviar 500GB Windows 7 x64 Ultimate Logitech Corsair 620W Modular 
CaseMouseMouse Pad
CM HAF 932 Steelseries Xai Steelseries 9HD 
  hide details  
Reply
post #7 of 25
I also recommand upping your QPI/VTT voltage. I suggest going to 1.29/1.30.
Also, I am pretty sure you have to disable LLC.
If that doesn't help, you can try upping your CPU PLL voltage to 1.82 or 1.84 too.

Last but not least, I suggest not to mess with the CPU Clock Skew until you have found your ceiling.
post #8 of 25
What BSOD code did you get? 124? If so bump up that QPI
post #9 of 25
Hi, as mentioned bump up the QPI volts a bit. I also have XMS3 CL7 and I need at least 1.35v on the QPI when running them at 1600mhz -although I don't think that the IMC in my chip is particularly good so you might get away with a little less.

Otherwise great work and good luck.
 
ROG Fortress
(12 items)
 
ROG Node
(10 items)
 
CPUMotherboardGraphicsGraphics
Xeon W3680 @ 4.60GHz (200x23 / 1.44v) Asus SABERTOOTH X58 HIS R9 290 / EK Waterblock + Backplate Sapphire R9 290 / EK Waterblock + Backplate 
RAMHard DriveOptical DriveCooling
24GB Sniper/Vengeance 1600MHz (9-9-9-24, 2T) 1.60v 120GB SSD + 256GB SSD + 1TB HDD Pioneer 218L EK Supreme HF Plexi 
CoolingCoolingCoolingCooling
Alphacool NeXXoS UT60 480mm Rad Alphacool NeXXoS ST30 480mm Rad EK CoolStream RAD XTX 240 Mayhems Pastel Ice White 
CoolingOSMonitorKeyboard
12x Gentle Typhoons / 2x Apache Blacks Windows 10 Home x64 27" Dell U2711 (2560x1440) Razer Lycosa 
PowerCaseMouseAudio
Enermax Revolution 85+ 1050W Corsair Obsidian 900D Corsair Vengeance M60 Logitech Z4 
CPUMotherboardGraphicsRAM
i7 4790K @ 4.7GHz ASUS Maximus VII Hero MSI GTX 1070 Gaming X 32GB GSkill TridentX 2666MHz 
Hard DriveOptical DriveCoolingOS
120GB/480GB/128GB SSD's / 2TB HDD LiteOn iHAS122B Corsair H80i GT / 2x GT 1450rpm Win 10 Home x64 
MonitorPowerCaseAudio
DELL U2711 (2560x1440) Superflower 1300W Silverstone Fortress FT02R-W / Red Interior SupremeFX 
CPUMotherboardGraphicsRAM
i5 4690K @ 4.6GHz ASUS Maximus VII Impact EVGA GTX 1070 FE 16GB HyperX Fury (Red) 
Hard DriveCoolingOSMonitor
120GB SSD + 1TB HDD MSI Dragon AIO Win 10 Home x64 Dell U2711 
PowerCase
Corsair CS650M Fractal Node 304 (White) 
  hide details  
Reply
 
ROG Fortress
(12 items)
 
ROG Node
(10 items)
 
CPUMotherboardGraphicsGraphics
Xeon W3680 @ 4.60GHz (200x23 / 1.44v) Asus SABERTOOTH X58 HIS R9 290 / EK Waterblock + Backplate Sapphire R9 290 / EK Waterblock + Backplate 
RAMHard DriveOptical DriveCooling
24GB Sniper/Vengeance 1600MHz (9-9-9-24, 2T) 1.60v 120GB SSD + 256GB SSD + 1TB HDD Pioneer 218L EK Supreme HF Plexi 
CoolingCoolingCoolingCooling
Alphacool NeXXoS UT60 480mm Rad Alphacool NeXXoS ST30 480mm Rad EK CoolStream RAD XTX 240 Mayhems Pastel Ice White 
CoolingOSMonitorKeyboard
12x Gentle Typhoons / 2x Apache Blacks Windows 10 Home x64 27" Dell U2711 (2560x1440) Razer Lycosa 
PowerCaseMouseAudio
Enermax Revolution 85+ 1050W Corsair Obsidian 900D Corsair Vengeance M60 Logitech Z4 
CPUMotherboardGraphicsRAM
i7 4790K @ 4.7GHz ASUS Maximus VII Hero MSI GTX 1070 Gaming X 32GB GSkill TridentX 2666MHz 
Hard DriveOptical DriveCoolingOS
120GB/480GB/128GB SSD's / 2TB HDD LiteOn iHAS122B Corsair H80i GT / 2x GT 1450rpm Win 10 Home x64 
MonitorPowerCaseAudio
DELL U2711 (2560x1440) Superflower 1300W Silverstone Fortress FT02R-W / Red Interior SupremeFX 
CPUMotherboardGraphicsRAM
i5 4690K @ 4.6GHz ASUS Maximus VII Impact EVGA GTX 1070 FE 16GB HyperX Fury (Red) 
Hard DriveCoolingOSMonitor
120GB SSD + 1TB HDD MSI Dragon AIO Win 10 Home x64 Dell U2711 
PowerCase
Corsair CS650M Fractal Node 304 (White) 
  hide details  
Reply
post #10 of 25
Could of sworn the 930 had 22x multi not 23
Reading fail op has a 950. Try that 23x basically the reason why you bought that 950.
Edited by KBcobra - 12/30/10 at 9:39am
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Intel CPUs
Overclock.net › Forums › Intel › Intel CPUs › Help! Unstable i7 950 @ 4GHz