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PCH Voltage: Which one do I need to raise?

post #1 of 2
Thread Starter 
Hello everyone,

To make a VERY long story short: I have Graphic Card stability problems and I tried everything I found online except raising the PCH voltage.

Wanted to try that out too but in my Bios (it's a Z87 Sabertooth board), I have an analog and a digital PCH voltage. Which one do I need to increase? Both?

Thank you very mucht!

Sharl
post #2 of 2
You should never have to adjust PCH to get a graphics card to be stable. PCH is the platform controller hub, basically the chipset. On Haswell (really Sandy Bridge onwards this applies as well) the PCI-E lanes are fed by the CPU, so I'm not even sure if PCH would have an affect. The PCH does control some secondary lanes, like x1 slots or x4 slots possibly but CPU will always be feeding those x16 or x8 slots where the GPUs are going.

What sort of issues are you having anyway?
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FreeNAS
(9 items)
 
Beast
(14 items)
 
Alura :)
(11 items)
 
CPUMotherboardGraphicsRAM
Intel Xeon E3-1245 v5 SuperMicro X11SSM-F-O C236 Integrated 2 x 16GB Kingston ValueRAM ECC KVR21E15D8/16 
Hard DriveCoolingOSPower
5 x 8TB Seagate IronWolf Pro in ZF2 Array CoolerMaster Hyper 212 Evo FreeNAS 11 EVGA SuperNOVA G2 550W Gold 
Case
Fractal Design Node 804 
CPUMotherboardGraphicsRAM
i7 4790k Asus Z97 Pro WIFI-AC Sapphire Nitro Radeon R9 Fury Tri-X OC+  G.Skill 4 x 8GB F3-2133C9D-16GXH 
Hard DriveOptical DriveCoolingOS
2 x Intel 730 480GB SSD in RAID 0 Asus DRW-24B1ST/BLK/B/AS Noctua NH-D15 Winblows 10 Pro x64 
MonitorKeyboardPowerCase
Pixio PX277 Logitech G510 Seasonic SS-660XP2 Fractal Design R4 Blackout 
MouseMouse Pad
Logitech G500 Xtrac Ripper 
CPUMotherboardGraphicsRAM
i5 2500k Asus P8Z68-V Pro MSI R7970 Lightning BE 2 x 4GB G.Skill Ripjaws 2133mhz 
Hard DriveOptical DriveCoolingOS
Mushkin Enhanced Chronos 240GB and WD Black 1TB Asus DRW-24B1ST Cooler Master Hyper 212 EVO Windows 7 Ultimate x64 
MonitorPowerCase
Hannspree 24 inch Thermaltake Tough Power TP-750P 750W Gold Cooler Master HAF 932 
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Overclock.net › Forums › General Hardware › General Processor Discussions › PCH Voltage: Which one do I need to raise?