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What should be disabled when OCing?

post #1 of 2
Thread Starter 
I've been trying to overclock a i5-2500K to 4.5Ghz but it keeps freezing up on me when I enter the OS. Not only that, even when changing the multipler to 42(for 4.2Ghz) and vcore to 1.25; my speed stays at 3.3Ghz while load with Prime95.

So I'm wondering if there are specific options I'm suppose to turn off in the bios?
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5Ghz Gigabyte P67A-UD4 XFX R9 280X Corsair XM3 4x2GB DDR3-1600 
Hard DriveOSMonitorKeyboard
Vertex 2 60GB Boot Drive+ Seagate 250GB Storage Windows 7 Ultimate x64 Dell U2713HM Logitech G110 
PowerCaseMouse
Corsair HX750W Corsair 650D Logitech G700 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5Ghz Gigabyte P67A-UD4 XFX R9 280X Corsair XM3 4x2GB DDR3-1600 
Hard DriveOSMonitorKeyboard
Vertex 2 60GB Boot Drive+ Seagate 250GB Storage Windows 7 Ultimate x64 Dell U2713HM Logitech G110 
PowerCaseMouse
Corsair HX750W Corsair 650D Logitech G700 
  hide details  
Reply
post #2 of 2
Turn off SpeedStep. Try that.
System One
(12 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i5-4430 MSI Z87-G45 EVGA NVIDIA GeForce GTX 560 Ti Superclocked 16GB DDR3 SDRAM 
Hard DriveOSMonitorKeyboard
Intel 320 Series SSD  Windows 8 Professional 64-bit ASUS VE228H Logitech K800 
PowerCaseMouse
Corsair HX650W Corsair 650D Logitech G700 
  hide details  
Reply
System One
(12 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i5-4430 MSI Z87-G45 EVGA NVIDIA GeForce GTX 560 Ti Superclocked 16GB DDR3 SDRAM 
Hard DriveOSMonitorKeyboard
Intel 320 Series SSD  Windows 8 Professional 64-bit ASUS VE228H Logitech K800 
PowerCaseMouse
Corsair HX650W Corsair 650D Logitech G700 
  hide details  
Reply
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