Makes you wonder why Intel lists 1.71V as the minimum for this in the datasheet. Are there any adverse effects from undervolting other than possible instability?
FYI, the Black Edition in your link doesn't appear (based on the pictures) to be the same as the Black Edition in the article. I think this is the one that you want: http://www.newegg.com/Product/Produc...82E16814150520
You need to change the turbo multiplier. I was also confused at first because there are at least three different places in the UEFI where you can set the multiplier, but the turbo multiplier seems to be the only one that actually has any effect.
Sounds normal to me. Vdroop is a safety mechanism that is part of Intel's design. Read the following for a full description: http://www.anandtech.com/show/2404/5
As the article states, you can overcome it by using load line calibration, but doing so circumvents a safety protocol.
For anyone that's overclocking using voltage offset with EIST and C1E enabled, I recommend performing the following test: open Prime95; set CPU affinity to a single core (CPU 0 w/o HT, CPU 0 & CPU 1 w/ HT); now run Prime95 Small FFTs with enough threads to get 100% load on the core.
My...
This is the source that came up with that figure:
http://forums.overclockers.co.uk/showthread.php?t=18227647
Whether they're credible or not I don't know, but just about every review of Sandy Bridge that I've read (including AnandTech) have used more than this "safe" voltage in their...
Does anyone have a solution to this that doesn't involve disabling EIST and C1E? Or do I need to apply more voltage despite being fully stable when all four cores are loaded?
Edit: I have a hunch that it has to do with LLC activating only when all four cores are loaded.
I was wondering why my CPU never goes above 95W in CPUID Hardware Monitor (not sure how accurate it is). I'll try setting it to 110% to see if it makes a difference.
Also, see the "official" guide, which makes no mention of this option:
http://hardforum.com/showthread.php?t=1578110
Never mind. Setting CPU affinity to one core and running prime95 with one thread brings the system down. It appears that having one loaded core doesn't bump up the voltage as much as it does with four loaded cores. I guess leaving voltage on auto is not an option after all.
My 2600k is doing 4.4 GHz at 1.3 V on an Asus P8P67 Pro. I had to set LLC to high (50%) to get it completely stable. It doesn't completely eliminate vdroop, but it can maintain a load voltage of 1.28 V. I usually hesitate to use LLC because of the theoretical risks, but I really wanted to get at...
If Long Duration Power Limit is left on auto does that mean that the board will restrict the CPU TDP to 95 watts? I have mine set to auto, and it never seems to go above 95 W in CPUID Hardware Monitor (not sure how accurate this is) despite being overclocked to 4.4 GHz. Should I increase it?
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