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QPI/VTT voltage?

post #1 of 2
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its winter, and i find it a good time to boost up my overclocks. looking for around 4.2ghz on my i5.

not sure if my h50 just suck or i just mounted it wrong, but my temperatures are seemingly higher than others.

40c idle, not sure on 100%, will test when i get a stable OC

so far 1.36v and not stable on 4.2ghz

whats the highest safe voltage for my i5?
does vtt and qpi have anything to do with achieving a stable overclock? its the only voltage im confused about. its 1.19v right now.

pll voltage at 1.8v
pch at 1.05v
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post #2 of 2
On 1366 CPUs, the Intel recommended is 1.35v, but most people feel safe up to around 1.45v so I'm not sure if it's the same on 1156 CPUs. But anyway, this is essentially the CPU's memory controller voltage. When clocking your RAM high / running a high uncore frequency, it is vital to increase for stability. For example I only need 1.28v to run 1600mhz CAS 7, but 2000mhz CAS 9 requires 1.34v or else I'm unstable.
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Beast
(14 items)
 
Dell XPS Faptop
(8 items)
 
Alura :)
(11 items)
 
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
Core 2 Duo T5250 @ 1.5ghz Dell 0N6705 Mobile Intel 965 Express 2 x 2GB Hyundai/Kingston DDR2 533mhz 
Hard DriveOptical DriveOSMonitor
OCZ Summit 60GB SSD Slot Load DVD-RW Windows 7 Ultimate x64 13.3 inch 1280x800 
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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