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post #11 of 15
Bring down VCore to the lowest required for stability. Do 20 minute tests to get you in the ball ark, then run the longer tests. My h80i keeps my CPU at below 75c at 4.8ghz 1.38v. So your probably pushing way more than necessary CPU voltage.

Also use offset rather than fixed, that will allow the voltage to scale back with frequency with the C States to save power at idle and have lower idle temps. Also reduces long term degradation as the CPU is not sitting at 1.3v all the time, rather 0.8v.

Start with offset +0.05, and like I said before, 20min prime95, bring offset down until failure, then bring it up a notch or two, then run the long test to ensure stability, adjust if necessary. You always want to use the lowest amount of Vcore necessary for a particular overclock.
Edited by jasjeet - 4/9/14 at 3:03am
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post #12 of 15
Thread Starter 
Thank you for responding jasjeet.

What would be the best number to start with? (if you don't mind sharing).
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post #13 of 15
Thread Starter 
so, i am currently set to 1.30 , i should try 1.25? Thanks

Also use offset rather than fixed , where do i do this? Thanks
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post #14 of 15
To use offset, select the Vcore "Manual" set to Offset.
Set Offset to Positive (+).

Set offset to +0.005v (what ever the smallest increment is).
See if it boots, if not raise offset 1 notch at a time till it does.
Once booted, check the Vcore with Prime95 and CPUz. Will probably be pretty low, maybe 1.23v for 4.2Ghz). If its pretty high, say 1.28v, start with negative offset.
If Prime95 crashes instantly, raise offset till you manage 5minutes.
Then start running longer runs, adjust accordingly.

Run Prime95 as follows, click Blend, click Custom, enter as much RAM as possible to test, then click OK.

You may want to use Medium LLC to prevent too much VDroop.
Edited by jasjeet - 4/9/14 at 6:02am
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Lounge Gaming
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NAS
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CPUMotherboardGraphicsRAM
i7 7700k 4.9Ghz 1.312v Asus Z170i Pro Gaming MSI GAMING GTX 970 1545/3900Mhz 1.23v G.Skill Trident Z 2x8GB 3000Mhz 14-14-32 1.35v 
Hard DriveHard DriveCoolingOS
Toshiba DT01ACA300 Intel X25-M 160GB RAID0 Noctua NH-U14S Windows 10 Pro x64 
MonitorPowerCaseAudio
Pioneer PDP4280XD Corsair RM650x Fractal Node 304 B&W 602S2's, B&W M1 Surround, Arendal Sub1 
Audio
Yamaha RX-A1010 
CPUMotherboardRAMHard Drive
i7 3770 4.38Ghz 1.12v Asus P8Z77-I DELUXE Kingston HyperX FURY Series 16GB (2x 8GB) 2200M... Crucial M4 128GB 
Hard DriveHard DriveHard DriveCooling
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post #15 of 15
Thread Starter 
Thank you very much! will try it.

Much Appreciated.
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D I S
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CPUMotherboardGraphicsRAM
i7 3930K Asus Rampage IV Extreme MSI GTX 780 TI GAMING 3G Corsair 16GB 7CL 
Hard DriveHard DriveOptical DriveCooling
2 x Intel 520 180GB RAID0 1 TB WD 1 TB WD Corsair H100i 
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Windows 8 64bit Acer G24 Swich 810 Cyborg M.M.O. 7 
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steelseries Logitech z5500 5.1 HTX speakers 
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