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Where is IOH voltage on my board??

post #1 of 35
Thread Starter 
I have a 1156 socket cpu and an asus p7p55d-e pro. The only voltage options I have are Vcore, IMC, PLL and PCH. Can someone tell me which one of these controls the IOH for my graphics cards??

Thanks!
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Azura
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post #2 of 35
i believe its the pch.
post #3 of 35
There is no IOH on Sandy Bridge.

It is now labeled PCH (platform controller hub).
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post #4 of 35
Quote:
Originally Posted by blackbalt89;15160086 
There is no IOH on Sandy Bridge.

It is now labeled PCH (platform controller hub).

he has 1156. not 1155
post #5 of 35
Thread Starter 
Yea I have an 860 Lynnfield
Azura
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Azura
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post #6 of 35
Quote:
Originally Posted by Not A Good Idea;15160123 
he has 1156. not 1155

doh.gif

My bad OP. redface.gif
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post #7 of 35
Thread Starter 
I've read that the northbridge is built into the cpu now, so i'm not sure if it's IMC or PCH.

I'm basically getting vid card driver crashes which could be related to low IOH so I need to know what to raise.
Azura
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Azura
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post #8 of 35
Quote:
Originally Posted by stilllogicz;15160206 
I've read that the northbridge is built into the cpu now, so i'm not sure if it's IMC or PCH.

I'm basically getting vid card driver crashes which could be related to low IOH so I need to know what to raise.

IMC is directly related to memory DIMMs AFAIK. So that wouldn't help video card crashes.

I would try giving the PCH a tiny bit of voltage bump and see if it helps.
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post #9 of 35
Rule of thumb that I follow for Sli setups.

1.150v IOH for Single card
1.200v IOH for SLi
1.250v IOH for 3xSli

I have one of these boards here at work. Let me go check the bios and take a pic and I'll upload it for you. Sound good?
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Red X9
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RAMHard DriveHard DriveOptical Drive
Corsair Vengence Pro 32gig 2400mhz c11 red (4x8... 6x 256gig (1.5tb) in Raid 0 , OS / Gaming Drive 2 x Liteon 256gig (512gig) storage drives Asus Dvd-RW 
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2x 360mm Alphacool XT45 / 1x 480mm Alphacool Mo... EK X-Res 140 D5 vario Pump/Res combo + EK X-top... EK Supreme HF cpu / EK Acetal / Nickel with Nic... Windows 8.1 64bit 
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post #10 of 35
Thread Starter 
sounds great, thanks hambone07si!
Azura
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Azura
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CPUMotherboardGraphicsRAM
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Hard DriveOSMonitorKeyboard
Crucial RealSSD C300 128GB > Samsung 850 Pro 25... Windows 10 64bit Acer XB270HU Logitech G710 
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EVGA SuperNOVA 1300 G2 Enthoo Primo Logitech G600 Corsair SP2500 
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