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Overclocking the i7 4930k

post #1 of 2
Thread Starter 
Hello,

I recently built my first ever system (I just upgraded from a Pentium 4 tongue.gif). I'm new to the overclocking scene, but this is what I have:

CPU: Intel i7 4930k @ 4.5GHz 1.35v (Stress testing on Prime95, with Realtemp says that lowest temperature is 28°C, and the highest is 77°C)
CPU Cooler: Swiftech H220 Water Cooler
Ram: CORSAIR Vengeance Pro 16GB (2 x 8GB), 1866Mhz
Motherboard: Asus Rampage IV Extreme
GPU: nVdia 780TI Classified (SLI)
Case: Corsair 540 (I put three fans in the front, with the H220 Radiator on top).
Power Supply: AX860i ATX Power Supply - 860 Watt (80 PLUS Platinum)


I overclocked the CPU recently to 4.5GHz, and it's stable at 1.35v. I ran prime95 a couple of times overnight and I launched CPU-Z, and saw that the core voltage is not at 1.35v. It increases to 1.376v, and usually goes to 1.384v.



Is this something I should be concerned about? Should I increase my core voltage to 1.376v or 1.384? Please let me know, thank you!

I haven't received any BSOD with my configuration so far. I ran prime95 for a week every night, and memtest every night for a week. No errors.
Edited by zerop0is0n - 3/24/14 at 1:23pm
post #2 of 2
This is because of Load Line Calibration. It causes the VCore to increase rather than drop under heavier loads. The Auto setting on the Asus board usually sets it to High. This is fine, try to reduce the Vcore to the minimum now.
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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 
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Toshiba DT01ACA300 Intel X25-M 160GB RAID0 Noctua NH-U14S Windows 10 Pro x64 
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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
Western Digial 3TB ACA Seagate Enterprise 2TB Western Digital Black 2TB Coolermaster Hyper 212 Evo 
OSMonitorPowerCase
Windows 10 Pro BenQ 24" Monitor Seasonic M12II 620W Fractal Design Node 304 
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Lounge Gaming
(13 items)
 
NAS
(14 items)
 
Beast
(17 items)
 
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
Western Digial 3TB ACA Seagate Enterprise 2TB Western Digital Black 2TB Coolermaster Hyper 212 Evo 
OSMonitorPowerCase
Windows 10 Pro BenQ 24" Monitor Seasonic M12II 620W Fractal Design Node 304 
  hide details  
Reply
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