E8400+LN2=6GHz!!!!!

Thought I would share my first experience with LN2 and some pics

To get started....

The Setup

BIOSTAR P45
E8400
Crucial Ballistix PC8000 2x1GB
OCZ Elite Stream 800w PSU
Dragon evo 2.2

It was setup in bedroom as my "computer room" was already maxed out and combined with the folding rigs is just too dam hot.


I had two HDD's hooked up both with Sam's custom XP pro install.(thanks Sam )
I knew that it was a matter of time before I corrupted the first(which I did)

Knowing that it was my first time I was not concerned with Pi or 3D as I was more or less just trying to see what it was about and to get familiar with temps and such.

I did find out quickly that anything over -124 degrees celsius that my board would shut down so I spent a good amount of time running 32M runs while learning how to control temps. I can say now that I have a new found respect for those who use LN2 as pouring is such a critical part of the benchmark. By the end of the session I had found the sweet spot for my pot maintaining a constant temp between -118 and -123 degrees celsius.

There was the voltage issue with the board not wanting to boot over 1.8v but I did manage to find an odd work around.....

few more pics.....









I did manage to squeeze out a CPUz screenie at the end of the session though




Thanks for looking

Amazing and utterly ridiculous all at the same time

Nice to see someone learning and sharing experiences from this, all you ever normally see is the end result and maybe some dead hardware covered in grease and frost...

And what's the odd voltage workaround?

This board has been known to have OVP issues. There is even a documented OVP mod for it.

In the beginning of the session I was able to gradually move it up to 1.9v but later I found it would not boot over 1.8v

It's rather random as to how I figured it out as I was pushing the power button continuously as it would power on for a second and power off while I was thinking about whether it could be due to a cold boot issue or OVP was kicking in but also running through my notes of BIOS adjustments back tracking to see what may of caused this to happen in the first place. Well, needless to say hitting the power button all that time it actually booted up!!

So , I rebooted, went up another notch and go the same boot problem. Hitting the power button a bunch of times it booted up

It's kind of like trying to jumpstart your car when the battery is dead and you are getting a jump from another car. Not very scientific but it worked. Plus after looking at the OVP mod this is much better as the mod if done wrong can have VERY BAD results. Much worse then Vdroop or vcore mods.

For this board, The efficiency is crappy if not tweaked. My ram can run 4-4-4-9 at 620FSB 32M stable on p35 chipsets but with this board it struggles at those timings for 32M at 600FSB. I have been been doing some research with Pmem and this board and found some pretty good tweaks that really tighten up the latency on the ram. Good enough to turn in about the same efficiency of the above timings but using cas 5 timings.

With the right CDT/copy wazza settings I am sure I could get good pi results but my ram just can not hack it at the speeds I need with that tight of latencies. There is most likely a way using Pmem but man it really is a time consuming project of trying to figure it out. I have seen where NewBeetle used it to help increase FSB and efficiency at the same time but I am a long ways from that research wise.

Something else to show the LN2 noob in me.

I did not know with LN2 that when you pour it in it disappears but keeps the pot cold as where with DI the lower you got the higher the temps got. It is so fun to work with. I can never go back to DI again. It is sooooo boring compared to this. In case you were wondering the T1 reading was at the base of the pot and the T2 reading was on the top of the IHS.

Where do you even get LN2?

DAMN impressive Brian and very interesting...thanks for sharing with us.

I know you have been wanting to try the LN2 for a while, glad you finally jumped in there.

btw how hard is it to keep those temps stable?...must be a nightmare.