It's been awhile since I read the intel white paper on the 2500/2600k but, I think the max that Intel guarantees is 95w @ 72c. How one arrives to that max is entirely up to you, ie 3.8Ghz using 1.6 volts or 5.0Ghz at 1.40v ....as long you reach the rated speed at or below the rated TDP it doesn't matter to intel.@ Dazz - The Volt MasterIsn't the VID just a programed target for voltage for given speed in MHz ...and isn't there a max preprogramed VID? And isn't true that under heavy load one's actual voltage can blow past that VID?

Ken Carlin -KSJCAsus P8p67 Deluxe 1503 / I5 2500k@5GHz-Turbo / CoolMaster Hyper 212+ / Corsair CMZ8GX3M2A1600C8 2x4GB 8-8-8-24-1t / MSI GTX 560Ti / Antec True Power 750w

Ken, what GTX580 GPU did you have installed on your machine for the FSXMark11 runs?Thanks

I can confirm that the video is as easy as the specialist says it is.Just OC'ed to 4.8 with no issues. Also got some additional frames around NYC with the NGX.One question though:I have manually set the voltage to 1.380 for the VCore. In FSX, the chip gets to 39C and at no load it's at 25C. If I'm just surfing the web, I really do not want VCore at 1.38 at 1.6GHz.Can anyone help me with that?

It's been awhile since I read the intel white paper on the 2500/2600k but, I think the max that Intel guarantees is 95w @ 72c. How one arrives to that max is entirely up to you, ie 3.8Ghz using 1.6 volts or 5.0Ghz at 1.40v ....as long you reach the rated speed at or below the rated TDP it doesn't matter to intel.

I can guarantee you that any CPU overclocked past 4GHz is well above 95W of power consumption. Just get a Kill'a'Watt and check for yourself. The TDP is used to control the turbo and is set to keep the chip working within specs at turbo speeds. At 4.5GHz there's no way you're going to be operating bellow the TDP

@ Dazz - The Volt MasterIsn't the VID just a programed target for voltage for given speed in MHz ...and isn't there a max preprogramed VID? And isn't true that under heavy load one's actual voltage can blow past that VID?

The VID is specific to each chip, yes. It has nothing to do with thew absolute maximum safe Vcore the chip can take

I can confirm that the video is as easy as the specialist says it is.Just OC'ed to 4.8 with no issues. Also got some additional frames around NYC with the NGX.One question though:I have manually set the voltage to 1.380 for the VCore. In FSX, the chip gets to 39C and at no load it's at 25C. If I'm just surfing the web, I really do not want VCore at 1.38 at 1.6GHz.Can anyone help me with that?

IIRC, in order to get the voltage to throttle up and down with the core speed you need to use the "offset" voltage setting.. I believe the guide I posted above has some further explanation on it.Also - every chip is unique as to what it can handle or is capable of... just because Intel has issued a general specification on their design doesn't mean every single CPU can accomplish it... I had to have the juice up near 1.4v to get my chip to run @ 4.7 without any errors in Prime95.. and I was still getting lockups and bluescreens on occasion. I throttled down to 4.5 and im running extremely stable with only 1.32v.. only a difference of 0.2 on the core speed with a pretty massive difference in voltage requirement.. its pretty obvious, my chip is only capable of 4.5.. maybe 4.6

Thanks Tom.I did some Google work and got the offset function to give me [email protected] when I need it and 1.6@ .9v when I dont. I felt kinda antsy about having the Vcore at 1.392 all the time.Glad I did the OC and the research to get a few more cycles out of the CPU.

I can confirm that the video is as easy as the specialist says it is.Just OC'ed to 4.8 with no issues. Also got some additional frames around NYC with the NGX.One question though:I have manually set the voltage to 1.380 for the VCore. In FSX, the chip gets to 39C and at no load it's at 25C. If I'm just surfing the web, I really do not want VCore at 1.38 at 1.6GHz.Can anyone help me with that?

In general most OCing guides tell you to turn off all the power saving stuff and just run at the OCed speed and voltage all the time - it's usually more stable that way.

In general most OCing guides tell you to turn off all the power saving stuff and just run at the OCed speed and voltage all the time - it's usually more stable that way.

Thanks for the head's up. If this OC goes unstable I'll go that route.I'm now trying to find out what the max volatge, (VNE if you will), for the 2600k. I have zero interest in burning out a chip by my own ignorance. Time to get Googling.

Ken, what GTX580 GPU did you have installed on your machine for the FSXMark11 runs?Thanks

I used the reference build by Zotach.