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i7 2600k@4.5Ghz 1.27v with 4GB RAM and now only 1.36v with 8GB RAM? Help!

post #1 of 6
Thread Starter 
Hey guys, a couple time ago I had 4GB RAM (2x2GB Kingston Hyper Blu 1600Mhz 1.65v) before I upgrade to 8GB (2x4GB Corsair Vengenance 1600Mhz 1.5v) and was able to OC my 2600k at 4.5Ghz using 1.27v at full load via Prime95, stable for 12 hours. But now I have only changed the RAM and I can't reach 4.5Ghz with the same voltage, now I need 1.36v to get it stable, is it normal? Should I test again with the previous RAM? Because if I try anything lower than 1.36v at full load and hit the Prime95 start button I got BSOD in few seconds. Is there a possibility of my chip got worse for something else? I'm using everything the same config I had before with 4GB RAM.

Thanks.
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post #2 of 6
You could try upping the voltage on the memory itself or the IMC.
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post #3 of 6
Thread Starter 
Quote:
Originally Posted by estabya View Post

You could try upping the voltage on the memory itself or the IMC.

Well I just installed again the 4GB memory sticks and the same problem, and this time I noticed there is no more showing 1.65v it is at 1.67v and with 8GB it is at 1.52v, why are 0.02v higher than before?

What could possible have happen with my processor, why is it asking so much vcore?
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WD 1TB 7200RPM Samsung 850 PRO 512GB Benq XL2420T Razer Cyclosa 
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i7 4790k Asus Maximus Hero VII EVGA GTX 1080 FE Corsair Vengeance Pro 4x4GB DDR3 1600Mhz 
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WD 1TB 7200RPM Samsung 850 PRO 512GB Benq XL2420T Razer Cyclosa 
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post #4 of 6
Thread Starter 
Anyone?
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i7 4790k Asus Maximus Hero VII EVGA GTX 1080 FE Corsair Vengeance Pro 4x4GB DDR3 1600Mhz 
Hard DriveHard DriveMonitorKeyboard
WD 1TB 7200RPM Samsung 850 PRO 512GB Benq XL2420T Razer Cyclosa 
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post #5 of 6
You're going to have to restart from scratch again after changing ram. The more memory you have the harder it is for you to get higher stable clocks. Did you do what estabya suggested? Increase voltage ram or IMC. There's pretty much no way around it or you could always go back to less memory. Are you air cooling or water cooling? I got better results water cooling my 2600K but it was difficult to hit 5Ghz so I stuck it out at 4.8Ghz.
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post #6 of 6
Thread Starter 
Quote:
Originally Posted by anoob View Post

You're going to have to restart from scratch again after changing ram. The more memory you have the harder it is for you to get higher stable clocks. Did you do what estabya suggested? Increase voltage ram or IMC. There's pretty much no way around it or you could always go back to less memory. Are you air cooling or water cooling? I got better results water cooling my 2600K but it was difficult to hit 5Ghz so I stuck it out at 4.8Ghz.

I did that and also tested with the previous RAM sticks (2x2GB) and same results
My gaming rig
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CPUMotherboardGraphicsRAM
i7 4790k Asus Maximus Hero VII EVGA GTX 1080 FE Corsair Vengeance Pro 4x4GB DDR3 1600Mhz 
Hard DriveHard DriveMonitorKeyboard
WD 1TB 7200RPM Samsung 850 PRO 512GB Benq XL2420T Razer Cyclosa 
PowerCaseMouseMouse Pad
Corsair AX860 Corsair Air 540 Steelseries Rival 100 Razer Goliathus Control V2 
  hide details  
Reply
My gaming rig
(12 items)
 
  
CPUMotherboardGraphicsRAM
i7 4790k Asus Maximus Hero VII EVGA GTX 1080 FE Corsair Vengeance Pro 4x4GB DDR3 1600Mhz 
Hard DriveHard DriveMonitorKeyboard
WD 1TB 7200RPM Samsung 850 PRO 512GB Benq XL2420T Razer Cyclosa 
PowerCaseMouseMouse Pad
Corsair AX860 Corsair Air 540 Steelseries Rival 100 Razer Goliathus Control V2 
  hide details  
Reply
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