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I can't overclock my i5 2500k

post #1 of 15
Thread Starter 
I just upgraded to an i5 2500k, and I can't get it to overclock well. the best I can do is 4.0 ghz, but I have to set the voltage way to high for it to boot (1.36v) anything lower and it won't boot. I followed basically everything in this guide:
clunk.org.uk/forums/overclocking/39184-p67-sandy-bridge-overclocking-guide-beginners.html
I've looked every where on the interwebs for anybody else having trouble, but can't find anybody. so am I doing something wrong? or is my cpu just a dud?

My system is:

Core i5 2500k
cooler master v8
asus P8P67 ws revolution
two 5850's crossfire
8 gigs of ram g.skill ripjaws x 2x4gb
post #2 of 15
1.36v is not a high voltage at all...
post #3 of 15
I hit the auto overclock button in my p8p67 and it took it up to 4.3

Try that smile.gif
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Poison
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post #4 of 15
every cpu is different i use around that voltage for my 4.7ghz oc on my 2600k with HT. Trial and error and make sure your temps are good and your fine
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post #5 of 15
Thread Starter 
it just seems high to me, most people seem to be getting away with a lower voltage. but I s'pose I can live with it
post #6 of 15
That definitely seems a little much for just 4.0.

What RAM speed are you running?
VCCIO Voltage?
PLL Voltage?
PLL Overvoltage should be disabled
LLC set to High
Everything else should be auto
Set the turbo to 40x (or higher)

You should be able to do 4.5GHz at 1.36v easy. I don't think I've seen one that doesn't do 4.5 at that kind of vcore.
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Junkyard
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HTPC01
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post #7 of 15
Thread Starter 
my ram is at 1333
VCCIO Voltage is set to auto, and its at 1.050v
PLL Voltage is also auto, 1.79v
PLL Overvolt is disabled
LLC is set to High

and turbo is 40x
post #8 of 15
Quote:
Originally Posted by ljakeupl;13913711 
my ram is at 1333
VCCIO Voltage is set to auto, and its at 1.050v
PLL Voltage is also auto, 1.79v
PLL Overvolt is disabled
LLC is set to High

and turbo is 40x

Ok, now mess with your Offset voltage (vcore). For 4.66GHz, I personally use + 0.05v (puts me at 1.36v).
Junkyard
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NAStradamous
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HTPC01
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Hard DriveHard DriveOptical DriveCooling
Crucial MX100 256GB WD Green 2TB DVDRW Corsair H50 Push / Pull 
CoolingOSMonitorMonitor
NZXT 120mm fans strapped to stock 7970 cooler Windows 10 Pro Dell 3007WFP Dell 2007FP 
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60GB Kingston SSD 1TB Seagate Samsung DVDRW CoolerMaster Gemin II 
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Windows 8.1 + Steam Big Picture / Plex HT 50" Insignia LED 1080p Logitech Rosewill Green 530w 
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Junkyard
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NAStradamous
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HTPC01
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CPUMotherboardGraphicsRAM
Intel i5 2320 @ 3.1GHz MSI B75MA-E33 HIS HD7970 3GB @ 1050 / 1700, 1.17v Patriot 2x4GB DDR3-1066 
Hard DriveHard DriveOptical DriveCooling
Crucial MX100 256GB WD Green 2TB DVDRW Corsair H50 Push / Pull 
CoolingOSMonitorMonitor
NZXT 120mm fans strapped to stock 7970 cooler Windows 10 Pro Dell 3007WFP Dell 2007FP 
MonitorKeyboardPowerCase
Dell 2007FP Cheap Toshiba (R.I.P. Ducky) PC Power & Cooling Silencer MKIII 950w Cheap Garbage (free) 
MouseAudio
Logitech G602 Yardsale Special 
CPUMotherboardGraphicsRAM
Intel Core i5 3330 Asus H61 MSI GTX 750Ti Low Profile 2x4GB Hynix DDR3-1333 
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60GB Kingston SSD 1TB Seagate Samsung DVDRW CoolerMaster Gemin II 
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Windows 8.1 + Steam Big Picture / Plex HT 50" Insignia LED 1080p Logitech Rosewill Green 530w 
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post #9 of 15
Thread Starter 
Quote:
Originally Posted by pioneerisloud;13913741 
Ok, now mess with your Offset voltage (vcore). For 4.66GHz, I personally use + 0.05v (puts me at 1.36v).

alrighty, for me at 4Ghz with the offset at 1.05v it puts my vcore at 1.368v
post #10 of 15
Couple of recommendations, as I *crosses fingers and knocks on wood* think I finally got my 2600k overclocked stably at 4.5GHz. @ 1.315V My issue was VTT/QPI not Vcore, and depending on the bluescreen you got, you might want to check what the issue is. 4Ghz @ 1.36 V is a bit absurd, and I'd check your settings before you overclock anymore. I found the clunk guide to actually be really atrocious as far as overclocking on a p8p67 board goes, try http://hardforum.com/showthread.php?t=1578110 , I found it to be much more informative and I got pretty good results. The other guide I highly recommend is on this forum at http://www.overclock.net/intel-general/910467-ultimate-sandy-bridge-oc-guide-p67a.html. Isnt using a uefi board, but the tips he gives, especially with reading bluescreen codes is quite worth your time. Also, if you bought your ram at DDR3 1600, run it at 1600. The clunk guide is really outdated.
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Hello Graduation
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