So many are over 4Ghz on water and I'm struggling at 3.9 w/226watt TEC, help.

[seedomo]

So here is the problem. I'm having to pump in 1.6875 (1.63 after VDroop) to get to 3.8, Orthos stable for hours. After reviewing the following thread http://www.xtremesystems.org/forums/showthread.php?t=115109, I see many others have used much less voltage to attain the same or higher speeds. My temps are fine even while pushing 1.6875 volts, never exceeding 38c; so, is there something I'm not doing correctly. I'm using a EVGA 680i and am must rund my memmory unsynced, unlocked at 800Mhz so i don't think the memory is the problem. Can I be certain that my chip is just not as good as the others, mind you there are sure a lot of people that can do 4Ghz at 1.6volts or lower. Could it be this motherboard? I'm out of options I guess and not very happy since I was expecting 4Ghz with this setup.
http://www.domophoto.com/3802 16875.jpg

[seedomo]

When I boot into windows at 3.6 it boots real quickly, 3 to 4 bars go across before it opens; however, any clock between 3.7 and 3.9 boots real slow :mad: like 20 bars go across before it opens. Then when booting at the unstable speed of 4.0 it loads quickly again. Is this a symptom of memory being unlinked? I admit I don't know enough about it all yet, but I thought if I left the memory unlinked it would take the memory out of the equation for stability.

[serialk11r]

When I boot into windows at 3.6 it boots real quickly, 3 to 4 bars go across before it opens; however, any clock between 3.7 and 3.9 boots real slow :mad: like 20 bars go across before it opens. Then when booting at the unstable speed of 4.0 it loads quickly again. Is this a symptom of memory being unlinked? I admit I don't know enough about it all yet, but I thought if I left the memory unlinked it would take the memory out of the equation for stability.

Hmmmmm... that happened to me during my noob experimentations.

[theelectic]

Try running your RAM linked and see what happens. You should be able to easily get to around 450 FSB 1:1 5-5-5-12 with your RAM, which is well within your 4GHz goal.

Did you chart your progress towards your current speed? When you have to start pumping a lot more voltage to get a small increase in stable speed, you know you're reaching the end of your CPU's capabilities, TEC cooled or not.

Anyway I wouldn't be disappointed with 3.9, 3.6 is typical, 4.0 is lucky, see the huge chart here:

http://www.hardforum.com/showthread.php?t=1138241

[seedomo]

Did you chart your progress
Here is the progress:
3.4 @ 4.25 VCore
3.5 @ 1.5125
3.6 @ 1.5125
3.7 @ 1.6
3.8 @ 1.6875 Droop 1.63 under load
What do you think, should I try another chip?

[littleowl]

you can try another chip and give me that one :D

[theelectic]

Here is the progress:
3.4 @ 4.25 VCore
3.5 @ 1.5125
3.6 @ 1.5125
3.7 @ 1.6
3.8 @ 1.6875 Droop 1.63 under load
What do you think, should I try another chip?

There you go, you got up to 3.4 with a slight increase in volts over stock, but successive .1 increases require a lot more volts. You're hitting the limit of your CPU.

If you've got $ to burn and definitely want to hit 4GHz, I'd go for phase. No guarantee you'd get a better CPU, especially the newer E6600s starting to clock lower.

http://xtremesystems.org/forums/showthread.php?t=138072

Also with all those volts you might be starting to push past your TEC capability.

[Holst]

This is in the wrong topic.
Unless you want to discuss the TEC setup, but your other thread is sufficent for that. I will ask a mod to move it as you will get a more expert oppinion in the Intel section.
Especially with regards to memory settings.

EDIT - Please answer the questions I asked in you other thread.

[Yoxxy]

I think you are reaching the max of your motherboard. You need to increase vnb/fsb term to reach a lot higher than that.

[theelectic]

You need to consolidate all the threads you started together.

http://xtremesystems.org/forums/showthread.php?t=138504
http://xtremesystems.org/forums/showthread.php?t=138397
http://xtremesystems.org/forums/showthread.php?t=138548

For one, you're probably overshooting your TEC. Second, your goal is not likely achievable. "So many are over 4GHz" is simply not true. Look at the Conroe OC database in the Intel forum:

http://xtremesystems.org/forums/showthread.php?t=127379

How many are at/over 4GHz? 6 out of 40. Which is not the largest nor most accurate sample size, but it should give you a good idea that even under the best of equipment, your chances of hitting 4GHz with a E6600 are unlikely.