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i7 2600k Overclocking issues

post #1 of 10
Thread Starter 
Ok so I have an i7 2600k to which I have only been able to get to 4.4ghz 100% stable, if I cross into the 4.5+ghz threshold I get BSOD's the instant I run prime95. My question is what is going on and why can't I seem to exceed that frequency? I am already running 1.392 volts which I thought was odd because I have seen others running much lower voltages and attaining the same results stable.

Heat is not an issue, I am running a Corsair H80 and my idle is around 34°c and no higher than 55°c under full load. Here is my CPU-Z of the exact specification I am running now and all settings. Also here is the batch# of my particular i7 if that information could be more helpful, thank you and any information would be very helpful.

Batch#: L145B269

CPU-Z: http://valid.canardpc.com/show_oc.php?id=2224499
post #2 of 10
what does it take to get 4.4 stable? clicked on the link, my bad

give it a run at like 1.44vcore and let me (us) know what happens. if you can't run it at that steep of an increase, i wouldn't venture further. recently i've seen alot of threads where people can't clock high frown.gif
post #3 of 10
Thread Starter 
Quote:
Originally Posted by driftkidd2323 View Post

what does it take to get 4.4 stable? clicked on the link, my bad
give it a run at like 1.44vcore and let me (us) know what happens. if you can't run it at that steep of an increase, i wouldn't venture further. recently i've seen alot of threads where people can't clock high frown.gif

Now the only reason I have not gone that high on voltage yet is this is my first Intel platform and I am not familiar with the voltage parameters. AMD you can push to 1.5 without a care in the world but the last thing I want to do is fry my CPU so that is why I am asking for further confirmation.
post #4 of 10
Quote:
Originally Posted by ^id View Post

Now the only reason I have not gone that high on voltage yet is this is my first Intel platform and I am not familiar with the voltage parameters. AMD you can push to 1.5 without a care in the world but the last thing I want to do is fry my CPU so that is why I am asking for further confirmation.

i would honestly be comfortable booting at 1.44 as long as you watch temps. I mean, i can boot this chip at 1.65vcore, but I would safely run it at 1.45 max, 1.5 max for benchmarks/stable bragging
post #5 of 10
1.44 is safe . . check the sig ;D Intel say 1.5v max but i would say no higher than 1.47 for 24/7 to be on the safe side smile.gif
Keith.
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Keith.
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Janet.
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My PC.
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CPUMotherboardGraphicsRAM
Intel Core i7 2600K [5.0GHz@1.45v] Asus Maximus IV Extreme EVGA GTX 680 Classified 16GB Corsair Vengeance Red 1600Mhz 9-9-9-24 
Hard DriveHard DriveHard DriveCooling
60GB Corsair Force Series 3 SSD 160GB Samsung 7200RPM 1TB Samsung 7200RPM Corsair H100 
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Windows 7 Professional 64Bit 27" Acer S273HLAbmii 19" Samsung SyncMaster 943SN Logitech diNovo Edge 
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Antec High Current Gamer 900W Coolermaster HAF 932 Logitech G300 
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post #6 of 10
Thread Starter 
Quote:
Originally Posted by Sonics View Post

1.44 is safe . . check the sig ;D Intel say 1.5v max but i would say no higher than 1.47 for 24/7 to be on the safe side smile.gif

And your CPU is stable at that clock and voltage? It just seems to me like it is VERY hit or miss with these 2600k's in terms of overclocking abilities, some do well and others do not.
post #7 of 10
Quote:
Originally Posted by ^id View Post

And your CPU is stable at that clock and voltage? It just seems to me like it is VERY hit or miss with these 2600k's in terms of overclocking abilities, some do well and others do not.

another thing you could try is going to 46x to see if just 45 is messed up? worth a shot. report back! biggrin.gif
post #8 of 10
Quote:
Originally Posted by ^id View Post

It just seems to me like it is VERY hit or miss with these 2600k's in terms of overclocking abilities, some do well and others do not.

I agree and don't understand it myself. If you look at the stable Sandy club you see some stupidly low vcore numbers quoted; considering the system my chip is running in I can only assume the QC has a very wide range of 'acceptance'. I've just started from scratch again and like you am running at 44 Multi for now.

Prime Blend running Real Temp shows the vid as 1.3511 or 1.3561. For vcore I've got (offset) 1.328v-1.336v but that hasn't gone through 12hour or anything. PLL or VCCIO do nothing stability-wise nor do they really change temps either way so everything else is set to auto (XMP profile for RAM).

Once I get 44 stable I'll up it to 45 and so on of course (I used to run it at 49 @ 1.52v which was game and 3DMark stable but Prime of course fell over so that's why I've started from beginning again).

I feel like starting a anti-prime stable club or poor-sandy club frown.gif
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Just a 'puter
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post #9 of 10
Thread Starter 
Well I tried all of the above with the same results as I was subjected to earlier. This chip must just not like going above the 4.4ghz threshold and the performance gain from 4.4 to 4.7 is pretty miniscule and not worth the temperature or voltage increases even if it worked so 4.4ghz it is, thanks everyone for your input I really appreciated it.
Quote:
Originally Posted by error-id10t View Post

I agree and don't understand it myself. If you look at the stable Sandy club you see some stupidly low vcore numbers quoted; considering the system my chip is running in I can only assume the QC has a very wide range of 'acceptance'. I've just started from scratch again and like you am running at 44 Multi for now.
Prime Blend running Real Temp shows the vid as 1.3511 or 1.3561. For vcore I've got (offset) 1.328v-1.336v but that hasn't gone through 12hour or anything. PLL or VCCIO do nothing stability-wise nor do they really change temps either way so everything else is set to auto (XMP profile for RAM).
Once I get 44 stable I'll up it to 45 and so on of course (I used to run it at 49 @ 1.52v which was game and 3DMark stable but Prime of course fell over so that's why I've started from beginning again).
I feel like starting a anti-prime stable club or poor-sandy club frown.gif

Haha yeah it is annoying but at the end of the day it is what it is, oh well.
Edited by ^id - 1/30/12 at 7:46pm
post #10 of 10
Looks like you lost the silicon lottery :/ The only thing I would suggest is trying different bios's. The latest isn't always the greatest biggrin.gif
Keith.
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Janet.
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My PC.
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CPUMotherboardGraphicsRAM
Intel Core i7 2600K [5.0GHz@1.45v] Asus Maximus IV Extreme EVGA GTX 680 Classified 16GB Corsair Vengeance Red 1600Mhz 9-9-9-24 
Hard DriveHard DriveHard DriveCooling
60GB Corsair Force Series 3 SSD 160GB Samsung 7200RPM 1TB Samsung 7200RPM Corsair H100 
OSMonitorMonitorKeyboard
Windows 7 Professional 64Bit 27" Acer S273HLAbmii 19" Samsung SyncMaster 943SN Logitech diNovo Edge 
PowerCaseMouse
Antec High Current Gamer 900W Coolermaster HAF 932 Logitech G300 
CPUMotherboardGraphicsRAM
AMD Phenom II X4 965 @ 4.21Ghz ASUS M4A87TD/USB3 NVIDIA GeForce GTX 460 768MB Corsair 4x2GB DDR3 1333Mhz 
Hard DriveOSMonitorPower
Samsung 160GB, Samsung 1TB Windows 7 Ultimate 64Bit Samsung SyncMaster 943SN Corsair TX650W 
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Keith.
(15 items)
 
Janet.
(13 items)
 
My PC.
(4 photos)
CPUMotherboardGraphicsRAM
Intel Core i7 2600K [5.0GHz@1.45v] Asus Maximus IV Extreme EVGA GTX 680 Classified 16GB Corsair Vengeance Red 1600Mhz 9-9-9-24 
Hard DriveHard DriveHard DriveCooling
60GB Corsair Force Series 3 SSD 160GB Samsung 7200RPM 1TB Samsung 7200RPM Corsair H100 
OSMonitorMonitorKeyboard
Windows 7 Professional 64Bit 27" Acer S273HLAbmii 19" Samsung SyncMaster 943SN Logitech diNovo Edge 
PowerCaseMouse
Antec High Current Gamer 900W Coolermaster HAF 932 Logitech G300 
CPUMotherboardGraphicsRAM
AMD Phenom II X4 965 @ 4.21Ghz ASUS M4A87TD/USB3 NVIDIA GeForce GTX 460 768MB Corsair 4x2GB DDR3 1333Mhz 
Hard DriveOSMonitorPower
Samsung 160GB, Samsung 1TB Windows 7 Ultimate 64Bit Samsung SyncMaster 943SN Corsair TX650W 
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