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Stuck on my first OC'ing adventure...i7 950

post #1 of 13
Thread Starter 
Ok, so I prematurely posted some overclocks last night, neither of which was stable, and then found out that nobody uses the IXTU program to OC. Ok, so, now I'm OC'ing through the BIOS. Set vcore at 1.2v to start as per advice on another thread about setting base vcore. I've got it up to 163MHz x 23 multi on 1.2v. I think it might be a memory problem since my DRAM led on the mobo stays lit when I try to boot it at 173 MHz x 23. Any suggestions?

ETA: CPU-Z validation
Edited by Keymaster4225 - 1/4/11 at 6:18pm
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i7 950 @ 4.254 GHz 1.32v Asus Sabertooth x58 nVidia GTX 460 12gb Crucial 1333 
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post #2 of 13
try bumping the cpu voltage up, to about 1.25-1.3v
    
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150GB WD Raptor OS, 500GB, 640GB x2 Samsung SATA DVD RW Coolermaster Hyper 212 plus Win 7 Pro x64 
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post #3 of 13
Quote:
Originally Posted by Keymaster4225 View Post
Ok, so I prematurely posted some overclocks last night, neither of which was stable, and then found out that nobody uses the IXTU program to OC. Ok, so, now I'm OC'ing through the BIOS. Set vcore at 1.2v to start as per advice on another thread about setting base vcore. I've got it up to 163MHz x 23 multi on 1.2v. I think it might be a memory problem since my DRAM led on the mobo stays lit when I try to boot it at 173 MHz x 23. Any suggestions?

ETA: CPU-Z validation
Pull out the memory and put it back in...
post #4 of 13
Thread Starter 
Ok, tried bumping vcore to 1.25v, still no boot. Tried bumping the RAM down another step AND bumping vcore to 1.25v and no boot. Any other thoughts?
Home-build #1
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 950 @ 4.254 GHz 1.32v Asus Sabertooth x58 nVidia GTX 460 12gb Crucial 1333 
Hard DriveOSPowerCase
WD 320gb Windows 7 Ultimate Antec EA650 Cooler Master Elite 310 
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Home-build #1
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CPUMotherboardGraphicsRAM
i7 950 @ 4.254 GHz 1.32v Asus Sabertooth x58 nVidia GTX 460 12gb Crucial 1333 
Hard DriveOSPowerCase
WD 320gb Windows 7 Ultimate Antec EA650 Cooler Master Elite 310 
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post #5 of 13
Quote:
Originally Posted by Keymaster4225 View Post
Ok, tried bumping vcore to 1.25v, still no boot. Tried bumping the RAM down another step AND bumping vcore to 1.25v and no boot. Any other thoughts?
Well reset everything to stock and start over would be your best bet or are you saying that the system won't boot at all?
post #6 of 13
Great guide here and it works like a charm. Just follow the directions and you should be good to go.

http://www.techreaction.net/2010/09/...-and-gulftown/
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Sandybox
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Ripper
(10 items)
 
CPUMotherboardGraphicsRAM
2600k Asus Maximus IV Gene-Z Asus GTX 580 DirectCU II  GSkill Ripjaws DDR3-1600 
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Intel X25-M 80GB SSD Samsung F3 500GB Tuniq Tower Extreme Win7 Ultimate x64 
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post #7 of 13
Thread Starter 
Quote:
Originally Posted by tconroy135 View Post
Well reset everything to stock and start over would be your best bet or are you saying that the system won't boot at all?
I put it back down to the 3.746 GHz OC and it's perfectly fine. As soon as I bump the bclk to 173 x 23, it won't boot. I tried changing the DRAM speed down to the lowest option (I have Crucial 1333), and it didn't help.
Home-build #1
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CPUMotherboardGraphicsRAM
i7 950 @ 4.254 GHz 1.32v Asus Sabertooth x58 nVidia GTX 460 12gb Crucial 1333 
Hard DriveOSPowerCase
WD 320gb Windows 7 Ultimate Antec EA650 Cooler Master Elite 310 
  hide details  
Reply
Home-build #1
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 950 @ 4.254 GHz 1.32v Asus Sabertooth x58 nVidia GTX 460 12gb Crucial 1333 
Hard DriveOSPowerCase
WD 320gb Windows 7 Ultimate Antec EA650 Cooler Master Elite 310 
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post #8 of 13
Quote:
Originally Posted by capt_zman View Post
Great guide here and it works like a charm. Just follow the directions and you should be good to go.

http://www.techreaction.net/2010/09/...-and-gulftown/
amazing guide ... got an extra 300GHz out of my 920
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Computer
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post #9 of 13
Thread Starter 
Ok, was using info from the guide posted above, and fiddled with the DRAM and VTT voltages, and got closer, it would almost boot into Win7, but then restart. Tried VTT/QPI voltage at 1.2v and DRAM at 1.6v, and it was close, but no go. Should I try a lower multi and higher bclk?
Home-build #1
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 950 @ 4.254 GHz 1.32v Asus Sabertooth x58 nVidia GTX 460 12gb Crucial 1333 
Hard DriveOSPowerCase
WD 320gb Windows 7 Ultimate Antec EA650 Cooler Master Elite 310 
  hide details  
Reply
Home-build #1
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 950 @ 4.254 GHz 1.32v Asus Sabertooth x58 nVidia GTX 460 12gb Crucial 1333 
Hard DriveOSPowerCase
WD 320gb Windows 7 Ultimate Antec EA650 Cooler Master Elite 310 
  hide details  
Reply
post #10 of 13
Thread Starter 
Ok, another update. Have it somewhat stable at 4.095 GHz (195 bclk x 21 multi @ 1.3v). QPI volts at 1.2v, set IOH manually to 1.1v, and DRAM volts to 1.6v. Need to get another fan or two to help with cooling, since ambient is 72* F here. Hit a max of 75C on Prime95 blend.
Home-build #1
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 950 @ 4.254 GHz 1.32v Asus Sabertooth x58 nVidia GTX 460 12gb Crucial 1333 
Hard DriveOSPowerCase
WD 320gb Windows 7 Ultimate Antec EA650 Cooler Master Elite 310 
  hide details  
Reply
Home-build #1
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 950 @ 4.254 GHz 1.32v Asus Sabertooth x58 nVidia GTX 460 12gb Crucial 1333 
Hard DriveOSPowerCase
WD 320gb Windows 7 Ultimate Antec EA650 Cooler Master Elite 310 
  hide details  
Reply
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