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Cannot OC my i5-750 at all.

post #1 of 7
Thread Starter 
Ok i have water cooling and i cannot push the bclock at all, any change to the block and i cannot boot into windows or linux. I have a xspc rasa block with a 360 rad so temps should not be a factor at all but my bios reports 42c @ stock and the pump is connected to a molex. Real Temp reports 13c that is below my ambient! At one point i got 4.2 stable and boot at 4.5 and voltages were under 1.4 so no damage i think. Is this a problem with the mobo or something else?

Thanks,

Andrew
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post #2 of 7
how long did you keep the 4Ghz+ overclock for?
It could indeed be that something got damaged. Did you mess with any other voltages?
    
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Core i5 - 750 @ 3.35GHz (159x21), Cooled by Hy... Asus P7P55D Pro Sapphire AMD Radeon R9 270X OC x2 4GB (8gb) Kingston DDR3 1600MHz 
Hard DriveOptical DriveOSMonitor
x2 500gb and a 1000gb CD/DVD RW drive Windows 7 Premium x64 22" Samsung SyncMaster 2233 120Hz 
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post #3 of 7
Thread Starter 
I folowed some i5-750 overclock thread here and i do not think the voltages were out of spec. the only time i was out of spec is me e-peen shot of 4.5 at 1.4v i kept 4 at 1.2v for only a week before i started to get unstable.
VCC=1.21
QPI/VTT/IMC=1.16
PCH=1.10
PLL=1.80
Main
(18 items)
 
  
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i7-4820 Gigabyte x79-UP4 MSI TF3 7950BE MSI TF3 7950BE 
RAMHard DriveHard DriveOptical Drive
Assorted Generic DDR3 1333 Sandisk Extreme SSD Random Assorted Crap Drives Random DVD-RW 
CoolingOSOSOS
H100 Arch Linux Windows 10 OSX 10.11 (15A244d) 
MonitorKeyboardPowerCase
HP x22LED 1080p G110 Antec HCG-750 Fractal Design Arc Midi 
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i7-4820 Gigabyte x79-UP4 MSI TF3 7950BE MSI TF3 7950BE 
RAMHard DriveHard DriveOptical Drive
Assorted Generic DDR3 1333 Sandisk Extreme SSD Random Assorted Crap Drives Random DVD-RW 
CoolingOSOSOS
H100 Arch Linux Windows 10 OSX 10.11 (15A244d) 
MonitorKeyboardPowerCase
HP x22LED 1080p G110 Antec HCG-750 Fractal Design Arc Midi 
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post #4 of 7
imc voltage seems WAY low to me....
    
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nope! 
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Hard DriveOptical DriveOSMonitor
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nope! 
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post #5 of 7
yes, I agree with Microman, try increasing the imc voltage to 1.2V

Also, since you have 1333Mhz memory, make sure that your memory multiplier is no more than 4x when raising the Blck frequency or else you could raise the ram frequency too much for it to boot.

It happened to me once, I was overlocking and went with a Blck of 190 but forgot to set the mem multi to 4x from the stock 5x and I couldn't boot since my 1600mh memory was running at 1900mhz accidentally
    
CPUMotherboardGraphicsRAM
Core i5 - 750 @ 3.35GHz (159x21), Cooled by Hy... Asus P7P55D Pro Sapphire AMD Radeon R9 270X OC x2 4GB (8gb) Kingston DDR3 1600MHz 
Hard DriveOptical DriveOSMonitor
x2 500gb and a 1000gb CD/DVD RW drive Windows 7 Premium x64 22" Samsung SyncMaster 2233 120Hz 
KeyboardPowerCaseMouse
Logitech Internet 350 Antech True Power 750watt Coolermaster Storm Scout Gigabyte M7 800/1600/3200dpi 
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Reply
    
CPUMotherboardGraphicsRAM
Core i5 - 750 @ 3.35GHz (159x21), Cooled by Hy... Asus P7P55D Pro Sapphire AMD Radeon R9 270X OC x2 4GB (8gb) Kingston DDR3 1600MHz 
Hard DriveOptical DriveOSMonitor
x2 500gb and a 1000gb CD/DVD RW drive Windows 7 Premium x64 22" Samsung SyncMaster 2233 120Hz 
KeyboardPowerCaseMouse
Logitech Internet 350 Antech True Power 750watt Coolermaster Storm Scout Gigabyte M7 800/1600/3200dpi 
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post #6 of 7
unrelated but, did u guys we all have Asus P55 motherboards? High Five!
    
CPUMotherboardGraphicsRAM
Core i5 - 750 @ 3.35GHz (159x21), Cooled by Hy... Asus P7P55D Pro Sapphire AMD Radeon R9 270X OC x2 4GB (8gb) Kingston DDR3 1600MHz 
Hard DriveOptical DriveOSMonitor
x2 500gb and a 1000gb CD/DVD RW drive Windows 7 Premium x64 22" Samsung SyncMaster 2233 120Hz 
KeyboardPowerCaseMouse
Logitech Internet 350 Antech True Power 750watt Coolermaster Storm Scout Gigabyte M7 800/1600/3200dpi 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Core i5 - 750 @ 3.35GHz (159x21), Cooled by Hy... Asus P7P55D Pro Sapphire AMD Radeon R9 270X OC x2 4GB (8gb) Kingston DDR3 1600MHz 
Hard DriveOptical DriveOSMonitor
x2 500gb and a 1000gb CD/DVD RW drive Windows 7 Premium x64 22" Samsung SyncMaster 2233 120Hz 
KeyboardPowerCaseMouse
Logitech Internet 350 Antech True Power 750watt Coolermaster Storm Scout Gigabyte M7 800/1600/3200dpi 
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post #7 of 7
@toxaris71, yeah high five go asus.
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AWESOME SYSTEM
(16 items)
 
  
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ASRock Z170 OC Formula Waiting For GTX 1080Ti Waiting For GTX 1080Ti 16GB G.SKILL Trident Z DDR4 4000Mhz 17-17-17-37... 
Hard DriveHard DriveCoolingOS
Samsung 840 Pro 256GB Samsung 840 Pro 128GB Corsair H105 Windows 10 Pro 64-Bit 
MonitorPowerCase
AOC U2879VF 28" FreeSync 4K LED Monitor  Lepa 1600W G-Series  Corsair Carbide Air 540 Case 
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