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What are these voltages?

post #1 of 3
Thread Starter 
I have an i7 2600k with an Asus P8P67 Pro motherboard (first revision after SB recalls).

I'm wondering what these voltages are, and whether it's safer for the longevity of my CPU to keep them at AUTO, or to manually select an amount so the automatic amount isn't boosted higher than it needs to be. This is what I have them set to currently in my bios:

VCCIO Voltage: Auto
PCH Voltage: 0.95v
PLL Voltage: 1.71250v
VCCSA Voltage: 0.9v

Recently I had an issue where my processor started to stay in turbo-boost mode permanently (3.8GHz @ 1.3v constantly) even while my CPU was at 0% load. My bios wasn't altered, but I had updated Intel Rapid Storage drivers for my hard drive. Really odd. Anyway, I'll likely be doing a reformat. But for now, I'm keeping my processor lightly overclocked (4.4GHz).
Edited by PaulWog - 10/16/13 at 6:21pm
    
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post #2 of 3
There's no harm in leaving any of them on auto if your not overclocking. Most of those settings relate to auxiliary functions, for example PCH is what would have been the Northbridge/Sourhbridge on older platforms, and VCCSA on Asus boards is the voltage to the memory controller on the chip.
    
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[Intel][2600K][5GHz][HT ON] [Gigabyte][Z77X][UP5-TH] [EVGA][GTX980]Classified][1585/8150] [Corsair][Dominator Platinum][32GB][2166MHz] 
Hard DriveHard DriveHard DriveCooling
[Samsung][840 EVO x 4][RAID 0] [Western Digital][Red][2TB][RAID0] [Samsung][F3][500GB][RAID1] Full EKWB Custom Loop 
OSMonitorKeyboardPower
[Windows][7][Ultimate][64 Bit] [Dell][U2713HM] + [LG] [24MP55 x2] [DAS][Ultimate Model S] [Corsair][HX850] 
CaseMouseMouse PadAudio
[Corsair][800D] [Mad Catz][R.A.T. 7] [Corsair][MM200] [MicroMega][MyZic][DAC] 
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post #3 of 3
here is an explaination for ivy - sandy is the same iirc.
http://www.overclock.net/t/1291703/lightbox/post/17889084/id/1152413


here is an oldie but goodie thought it uses a first generation iCore:
Vcore, VTT, DRAM, PLL, PCH - Voltages Explained - Core i7, i5, i3
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loon 3.2
(18 items)
 
  
CPUMotherboardGraphicsRAM
i7-3770K Asus P8Z77-V Pro EVGA 980TI SC+ 16Gb PNY ddr3 1866 
Hard DriveHard DriveHard DriveOptical Drive
PNY 1311 240Gb 1 TB Seagate 3 TB WD Blue DVD DVDRW+/- 
CoolingCoolingOSMonitor
EKWB P280 kit EK-VGA supremacy Win X LG 24MC57HQ-P 
KeyboardPowerCaseMouse
Ducky Zero [blues] EVGA SuperNova 750 G2 Stryker M [hammered and drilled] corsair M65 
AudioAudio
SB Recon3D Klipsch ProMedia 2.1  
  hide details  
Reply
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