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LN2 pots in the making - Update with GPU pot action - Page 4

post #31 of 61
Quote:
Originally Posted by VCheeZ View Post
I wish I could find some LN2 for this sort of project
Grab some DI, its pretty cheap if not free half the time if you can find a hookup and just about as much fun as LN2.
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post #32 of 61
Now that there is 1 phallyc ln2 pot. Lol.
    
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post #33 of 61
Thread Starter 
Quote:
Originally Posted by Chipp View Post
Nice work - I'm subscribed. It's nice to see some more extreme projects being taken on.
thanks, I was surprised by the lack of (consumable) extreme coolers here. It isn't harder than all the fabrication we have going on. different goals I guess.

Quote:
Originally Posted by ira-k View Post
Hey nice run and validation...Looks great, Thanks for all the pic's to....
thanks ira, no prob!

Quote:
Originally Posted by yomama9388 View Post
Looks like a good pot for a home made one, I saw this over at XS. I do some benchin myself, mostly dice and cascades though. Looks nice! one thing I would recommend, maybe having thicker walls? Those walls look a little thin and would probably result in some pretty big temperature swings.
thanks, yea I recognize ur nick. The tube walls are thin, but the amount of material around in the base is massive, I wish I took a measurement before joining the two. Even under high volts, never got below ~ -71.5C. really not very much swing at all

we will see how it holds up when I try LN2, hopefully this weekend!

Quote:
Originally Posted by VCheeZ View Post
I wish I could find some LN2 for this sort of project
Try the phone book. it really isn't very hard to find. Also many supermarkets have dry ice.

Quote:
Originally Posted by Clinic View Post
Now that there is 1 phallyc ln2 pot. Lol.
lol, no comment
    
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post #34 of 61
Yeah, looks like a nice size base, that pot looks like it will handle dry ice perfectly, the whole temperature swing thing that I was talking about though you won't really notice until you run ln2. Hopefully I can sell my dice pot and get a new pot soon.
post #35 of 61
Thread Starter 
Quickie update: Had just a little time over the weekend to try some LN2. the good news: no cold-boot/ cold bug issues with chip/board down to -125C, and gets into windows @ 595x9 = 5355MHz.

The bad news, unstable at desktop from the 1st boot(@ stock), return of the data corruption bug. I needed to do some OS jockeying and simply didn't have the time . I played around for a little while anyways to try and get an indication of how high fsb is possible with chip @ -100, -110, -115, -120, -125. Seems no lockups until the same point when HDD corruption slaps me in the face.

so, some waiting, hopefully by this weekend enough time to get some real numbers and more testing.

as a side note, swing is present - but controllable @ idle(1.85V). pouring every ~45sec yields +/- 1 degree. we will see how much this changes under load.
    
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post #36 of 61
wow nice! subscribed
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post #37 of 61
Looking good

I have a new ln2 pot coming very soon, I'm excited
post #38 of 61
You need to pick up a Q6600 for $190 bucks and make a run at 30k. Good work on the 8400 though.

Oh and how much does the full LN2 setup cost (with the LN2 itself)? You can PM me if you don't want to discuss it openly.
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post #39 of 61
Thread Starter 
Quote:
Originally Posted by yomama9388 View Post
Looking good

I have a new ln2 pot coming very soon, I'm excited
Sweet man, any pics or info you can give on the new pot? can't wait to see it. I started checking out your DICE thread but haven't finished reading. n1 though!

Quote:
Originally Posted by tehpwnerofn00bs View Post
You need to pick up a Q6600 for $190 bucks and make a run at 30k. Good work on the 8400 though.

Oh and how much does the full LN2 setup cost (with the LN2 itself)? You can PM me if you don't want to discuss it openly.
Ur right that a quad would be best for a run at the top. A q6600 is limited by fsb though as it is 9x multiplier, unlike the unlocked qx chips - the best case fsb for quad is ~ 500x9 - 4500 MHz . actually with current card clocks and an identical clocked quad, I would probably see just shy of 28k. 30k would take more MHz cpu, and definitely sub zero cards would help.

I have gpu blocks in the works, depending how much time I get it could be a week, or into May. hopefully sooner.

As far as LN2 costs. well, I made the pot myself, materials for the cpu pot and insulation ~ $70. LN2 varies with area, I get about $1-2
per liter. As I found out recently, 4L doesn't last all that long. You will also need a dewar, which can be found on ebay or rented. this can be pricy. Dry Ice though is dirt cheap. $30 will land you more than you can bench with in a sitting.

I have lined up some more 2d benching, and other 3dmarks to try and show performance without needing a qx.

edit: just sw a quad (9450) @ 568 fsb , but trust me when I say this is the exception. also, only 3dmark06 is limited by cores, and then only by cpu test. SM2/SM3 tests are the same at the same MHz.
    
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post #40 of 61
Got that XP in 'diag' mode..16bit, maxmem ..all the usual goodies setup? I have been working on getting some good file sizes for copywaza to run, 1mil and 32mil... need to set up my bench OS on a fresh HDD and get some new ddr to bust into the sub-14sec category for ~3-3.3ghz range with my e6700...

I am eager to see some fully tweaked benchies at 5.3ghz!
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