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setting for overclocking 2500k with p67 boards to over 4.5Ghz!!!

post #1 of 7
Thread Starter 
i want to know what setting everyone use to overclock a 2500k to 4.5Ghz or higher!!! plz be specific smile.gif also include which motherboard's BIOS u use for overclocking!!


by specific i mean

ALL the settings you have changed from default thanks !!
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post #2 of 7
stockphotokeyboardwithw.jpg Of course. thumb.gif






Just kidding! It really depends on the motherboard you're using, but it's typically as easy as changing the multiplier to 45x and upping the vcore to where it's stable under load.

(That's the down and dirty version. There are a lot more settings if you want to get technical about it such as power states, RAM voltages, RAM clocks, etc)
Edited by HAF_wit - 3/10/11 at 2:24pm
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Sandeh Bridge
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post #3 of 7
Thread Starter 
Quote:
Originally Posted by HAF_wit;12684612 
stockphotokeyboardwithw.jpg Of course. thumb.gif





Just kidding! It really depends on the motherboard you're using, but it's typically as easy as changing the multiplier to 45x and upping the vcore to where it's stable under load.

(That's the down and dirty version. There are a lot more settings if you want to get technical about it such as power states, RAM voltages, RAM clocks, etc)

yes i would like to know all the setting that were changed from default for future overclocking reference smile.gif
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post #4 of 7
why not try this??? it does work. http://www.overclock.net/intel-general/910467-ultimate-sandy-bridge-oc-guide-p67a.html

As for 4.5, you can dam near Auto it depending on the board.
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post #5 of 7
Quote:
Originally Posted by mojosephwu;12684750 
yes i would like to know all the setting that were changed from default for future overclocking reference smile.gif

Well, I'm using an MSI board which has different settings than the Asus or Gigabyte boards. So your mileage may vary...

(This is for my 4.8Ghz 24/7 stable setting at 2133Mhz RAM)
Multiplier: 48x
EIST: Disable
Vcore: 1.458v (This part is really dependent on your CPU, some just overclock better than others)
CPU PLL override: Enable
I/O Voltage: 1.29v (1.25 is standard, but I was having some memory stability issues. This seems to have cleared them up by bumping up my VIO a hair.)
RAM Voltage: 1.652v (I was having some stability at 1.64, and while it's recommended not to exceed 1.65v, I haven't seen any issues)
XMP profile: Enabled (sets it automatically to 2133 with preset timings on my RAM. You can manually set this depending on whatever RAM you have.)
Under Power Settings, I have EVERYTHING off. C1E and C states were causing me stability issues.
EUP-2013: Disabled
Phase control: Disabled. (SVID and APS didn't seem to do anything for me, they're supposed to turn your voltage down as EIST lowers your multiplier based on load, but apparently after 1.4v, it doesn't work?)
Vdrop: Low vdrop. (High was giving me some weird voltage spikes, causing stability issues.)
Overspeed Protection: Disabled.
Intel Power Scheme: Disabled.

Those are pretty much the settings I am personally using on my MSI P67A-GD65 off the top of my head. I've been able to get up to 5.1Ghz, but I do start to see some temperature issues as my chip really likes to eat 1.5v+ past the 4.9Ghz range.

Note: This is on a watercooled system, so if you're seeing temps past 80ºc, you might want to back down a bit. (The highest I see is 72 during an hour of Prime95 at 4.8Ghz. I'm thinking that once I get my b3 board, I'm going to play with TIM application some more.)

Edit: Yeah, Sin has some good tips in his guide above. It doesn't hurt to read as much as you can before changing your settings. smile.gif
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Polk Series II Monitor40 speakers Velodyne CT-120 Sub Lamptron FC-5 Fan Controller 
CPUMotherboardGraphicsGraphics
i7-2720QM Lenovo 42762QU/Intel QM67 chipset Nvidia Quadro 2000M Intel HD 3000 
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Sandeh Bridge
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CPUMotherboardGraphicsRAM
i5-2500k Asus P8P67 Deluxe EVGA Geforce 580 FTW HC2 (SLI) Mushkin 996997 
Hard DriveHard DriveOptical DriveCooling
Corsair F90 SSD Samsung Spinpoint F3 LiteOn DVD EK Full Nickel CPU Block 
CoolingCoolingCoolingCooling
EK Spin-Bay Reservoir Swiftech MCP-650 Pump Bitspower Fittings 1/2"ID x 3/4" OD Primochill Tubing (UV Green) 1/2"ID x 3/4" OD 
CoolingCoolingCoolingOS
Swiftech Hydroropper II GPU Waterblocks (x2) HWL Black Ice GTX 360 Radiator HWL Black Ice GTX 120 Radiator Windows 7 Ultimate x64 sp1 
MonitorKeyboardPowerCase
Samsung ToC P2770H M$ 4000 Ergo-nom-nom-ic Corsair AX1200 HAF X Nvidia Edition 
MouseMouse PadAudioAudio
Logitech G9X Belkin FTW Asus Essence STX  Onkyo TX-SR309 
AudioAudioOther
Polk Series II Monitor40 speakers Velodyne CT-120 Sub Lamptron FC-5 Fan Controller 
CPUMotherboardGraphicsGraphics
i7-2720QM Lenovo 42762QU/Intel QM67 chipset Nvidia Quadro 2000M Intel HD 3000 
RAMHard DriveHard DriveOptical Drive
Kingston HyperX DDR3 SoDIMM 1600Mhz Mushkin Enhanced Chronos Deluxe SSD Seagate Storage Sony Optiarc 
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post #6 of 7
Which motherboard are you using?
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post #7 of 7
Thread Starter 
Quote:
Originally Posted by drka0tic;12686447 
Which motherboard are you using?

asrock extreme4 p67 b3
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Beast
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