ItsJustAName

for some reason i cant raise my vcore for a q6600 on my p5n-t delxue mothboard (with newest bios) as needed for a 3.2GHz OC in my systems, I put in a higher value but it stays between 1.264-1.28v when i check it. My OS boots just fine and ive tested in on games for short periods of time with no crashes however prime95 detects rounding failures usually 10 mins in for atleast one core, 2 more threads usually fail after 20~40 mins or so but one seems to survive. So my question is this, are there any settings on my motherboard that may limit the vcore from being raised, I think it's just running at auto - the same as i use for 3GHz

t_russell

Do you have EIST, Spredspectrum,C1E, Execute disable bit, and all the other power saving junk turned off in the BIOS?

BikePilot

Yep, check those and also be sure to check that you are saving your settings in the bios and not accidentally exiting without saving (pressing F10 should save and exit).

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Laptop: Lenovo X61S

ItsJustAName

all disabled thought i usually have Execute disable bit enabled. Are there any settings that physically limit the vcore voltage such as other voltages

t_russell

No nothing other than the power saving features should effect the vcore.

Tommytom22

Really bad vdroop possible?

t_russell

I couldn't believe it would be that bad. Do you have a digital multimeter you can verify the reading with? It may not be reporting properly.

ItsJustAName

I check it with cpu-z and HWmonitor pro though i guess they check by the same method
i definitely need more voltage and it should be fine at a little over 1.3v according to other peoples stable settings so i trust cpuid

TwoCables

It's my guess that you need to disable these so-called "limiting" BIOS features that are not overclocker-friendly. Disabling them will help you get the most out of your overclock.

• Spread Spectrum (anything that says it)
• Intel Speedstep, EIST, or Enhanced Intel Speedstep
• C1E Enhanced Halt State, or anything with "C1E" or "C1" in the name
• CPU Thermal Control, or anything with options of "TM1", "TM2", and "TM1 & TM2".

Do not disable Execute Disable Bit because that's a useful feature that Windows can take advantage of to help increase the security of your system. It is needed for Data Execution Prevention.

However, you will still see vdrop and also vdroop (both of which are normal). Vdrop is when the actual voltage is lower than the voltage you set it to. But vdroop is when the voltage droops under load. Now, you may have something in the BIOS called Vdroop Control. Enable this, and it should reduce, or maybe even eliminate the vdroop.

Please report back regarding whether or not this worked for you.

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ItsJustAName

yeh i always keep execute disable bit on. Disabled everything else i could find and no improvement. earlier i changed cpu VTT or HT or something and now core voltage stays at a constant 1.232v never changing. 'though you guys have been a lot more helpful than those on the officla asus forum... I really need to find someone else with a p5n-t deluxe