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i7 950 @ 4Ghz - Feedback,Help?

post #1 of 4
Thread Starter 
Hello!

I've recently overclocked my i7 950 to 4Ghz. But im not happy with the results, to even be able to reach 4Ghz without getting temps over 75c in Prime95 i had to turn HT off. Max temps in intel burn test on maximum for 10 rounds were around 76c stable but it reached 78c at times. The overclock overall seems stable but im looking for a way to decrease the tempratures.

@ 4Ghz

HT OFF
Idle - 40-45c
Full load - 72-74c with Prime95, 71-78c with intel burn test

In most off the games i play the temps don't reach over 68c. Games such as Battlefield: Bad Company 2,Rift and Call of duty.

Intel Burn Test results:

Time (s) Speed (GFlops) Result
131.725 56.5488 3.166207e-002
131.828 56.5047 3.166207e-002
131.573 56.6140 3.166207e-002
131.459 56.6631 3.166207e-002
131.477 56.6552 3.166207e-002
131.593 56.6052 3.166207e-002
132.224 56.3351 3.166207e-002
131.612 56.5973 3.166207e-002
131.777 56.5263 3.166207e-002
131.645 56.5831 3.166207e-002


Computer Specs:

Motherboard: Asus P6X58D-E
CPU: i7 950
CPU Cooler: Noctua NH-D14
Thermal Paste: MX-4
PSU: Corsair AX 750
RAM: Corsair XMS3 DDR3 1600Mhz - 9-9-9-24 @ 1.65v
GPU: ASUS ENGTX 480 @ stock speeds
Case: Coolermaster HAF X

Bios Settings:

Multiplier: 21x
BCKL: 191
Dram Frequency: 1531Mhz - 9-9-9-24
UCLK: 3063
CPU Voltage: 1.31875
CPU PLL Volt: 1.80
QPI/Dram Core Volt: 1.21875
IOH Volt: 1.12
IOH PCI-E Volt: 1.50
ICH PCI-E Volt: 1.50
ICH Volt: 1.20
Dram Bus Volt: 1.64

Load line calibration: Enabled
CPU differential amplitude: 800Mv
CPU clock skew: Delay 300ps
Spread spectrum: Disabled
PCI-E spread spectrum: Disabled


Do you guys think my settings are wrong? If so what should i change?
Personally i think that the CPU volt is high, problem is that i was getting errors in Prime95 when i was using any volt under 1.31875.
I think the error had to do with the RAM but when i increased the volt the errors started to disappear.

Memtest x86+ Didn't find any errors with my RAM.

Just to add i used the "Pea Size" method when applying the MX-4 Thermal Paste. And i don't know my room temps currently but it's really hot!

Im also a first time overclocker so be nice!
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 950 @ 4Ghz HT OFF Asus P6X58D-e Asus ENGTX 480 Corsair XMS3 6gb 
Hard DriveOSMonitorKeyboard
Samsung Spinpoint F3 1TB x2 in Raid 0 Windows 7 Ultimate x64 Benq G2420HDBL Some Compaq keyboard from 1995 
PowerCaseMouseMouse Pad
Corsair AX750 Coolermaster HAF-X Razer Deathadder 3500dpi Steelseries QCK+ 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 950 @ 4Ghz HT OFF Asus P6X58D-e Asus ENGTX 480 Corsair XMS3 6gb 
Hard DriveOSMonitorKeyboard
Samsung Spinpoint F3 1TB x2 in Raid 0 Windows 7 Ultimate x64 Benq G2420HDBL Some Compaq keyboard from 1995 
PowerCaseMouseMouse Pad
Corsair AX750 Coolermaster HAF-X Razer Deathadder 3500dpi Steelseries QCK+ 
  hide details  
Reply
post #2 of 4
Have you read this thread? Its a good place to start. You may need more QPI\\Dram.
http://www.overclock.net/intel-cpus/...920-930-a.html
Not SLi any more
(18 items)
 
  
CPUMotherboardGraphicsRAM
i7 920 @ 4.0 Asus P6TD-Deluxe EVGA GTX770 SC 6GB XMS3 @1530 cas7 
Hard DriveHard DriveHard DriveOptical Drive
Intel X25-M 80GB OCZ Agility 120GB Intel X25-M 40GB LG Blue ROM DVD RW 
CoolingOSMonitorKeyboard
Water cooled w/ T-Balancer BigNG Win 7 x64 Asus PB298Q Cherry 4100L 
PowerCaseMouseMouse Pad
Corsair HX1000 MM UFO-U2 R.A.T. 7 Contagion G.L.I.D.E 9 
AudioAudio
Xonar Essence STX SR80i, DT770 or HT-R518 w/ Monitor Audio BR's 
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Not SLi any more
(18 items)
 
  
CPUMotherboardGraphicsRAM
i7 920 @ 4.0 Asus P6TD-Deluxe EVGA GTX770 SC 6GB XMS3 @1530 cas7 
Hard DriveHard DriveHard DriveOptical Drive
Intel X25-M 80GB OCZ Agility 120GB Intel X25-M 40GB LG Blue ROM DVD RW 
CoolingOSMonitorKeyboard
Water cooled w/ T-Balancer BigNG Win 7 x64 Asus PB298Q Cherry 4100L 
PowerCaseMouseMouse Pad
Corsair HX1000 MM UFO-U2 R.A.T. 7 Contagion G.L.I.D.E 9 
AudioAudio
Xonar Essence STX SR80i, DT770 or HT-R518 w/ Monitor Audio BR's 
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post #3 of 4
Thread Starter 
Quote:
Originally Posted by Darren9 View Post
Have you read this thread? Its a good place to start. You may need more QPI\\Dram.
http://www.overclock.net/intel-cpus/...920-930-a.html
I'll take a look thanks!
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 950 @ 4Ghz HT OFF Asus P6X58D-e Asus ENGTX 480 Corsair XMS3 6gb 
Hard DriveOSMonitorKeyboard
Samsung Spinpoint F3 1TB x2 in Raid 0 Windows 7 Ultimate x64 Benq G2420HDBL Some Compaq keyboard from 1995 
PowerCaseMouseMouse Pad
Corsair AX750 Coolermaster HAF-X Razer Deathadder 3500dpi Steelseries QCK+ 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 950 @ 4Ghz HT OFF Asus P6X58D-e Asus ENGTX 480 Corsair XMS3 6gb 
Hard DriveOSMonitorKeyboard
Samsung Spinpoint F3 1TB x2 in Raid 0 Windows 7 Ultimate x64 Benq G2420HDBL Some Compaq keyboard from 1995 
PowerCaseMouseMouse Pad
Corsair AX750 Coolermaster HAF-X Razer Deathadder 3500dpi Steelseries QCK+ 
  hide details  
Reply
post #4 of 4
Mine is 21*191.
Vcore: 1,288
QPI: 1,3
Idle: 40 (24C outside)
BTW , Your QPI looks extremely low.
And your temps are JUST FINE. Its 950 and HOT !!!
Night Crawler
(14 items)
 
  
CPUMotherboardGraphicsRAM
i7 950 4.2GHZ (21*200 & 1,36V HT Off) Rampage III Formula GTX680 6 GB / 8-8-8-20 KINGSTON 
CoolingOSMonitorCase
Thermaltake Frio win 7 x64 ACER H235H thermaltake element g 
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Night Crawler
(14 items)
 
  
CPUMotherboardGraphicsRAM
i7 950 4.2GHZ (21*200 & 1,36V HT Off) Rampage III Formula GTX680 6 GB / 8-8-8-20 KINGSTON 
CoolingOSMonitorCase
Thermaltake Frio win 7 x64 ACER H235H thermaltake element g 
  hide details  
Reply
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