LN2, ghetto blocks, P35 LanParty T2R, E6850 and 8800GTX

[s e t h]

e6850 - SLA9U / L721A511
DFI LANParty UT P35
Crucial Ballistix Tracer pc8500 2x1gb
8800gtx oem - vgpu & vddr
Aopen 700w
Raptor 35gb

cpu cooling - ln2 & ghetto pot 5
gpu cooling - ln2 & ghetto pot 4

ghetto5 system test mounted


getting everything ready...dry run lasted about 30minutes with 0 cooling before the block hit 50 degrees


first pour...smoke! B-)


sub0 bios flashing


this block just eats ln2...as suspected the surface area allows for very rapid temp pulldown
one needs to be carefull not to overpour or the temps will just plummet rapidly


condensation autopsy after about 5 hours of -110' block temps and -130' bios temps
the ice didn't stop us in the end ...i think it was the tequila


luckily there was sticky tape sealing air out of all the underside components...still ghetto :P


well the ln2 allowed us to capture the 1M drag race in my country...and run all the 2D hwbot benchies at between 5.1 and 5.2ghz


here is the rest hwbot 2D suite excepting the suicide cpu-z bench for which we hit -5268mhz variefied-

super-pi 32M


hexus pifast


wprime 32M


wprime 1024M


more pics...the collection is growing


anti-condensation packaging tape actually works a treat


vpgu and vddr vmods at 1.6v and 2.1v respectively


no more zip ties...oh well this method seems reliable too...lol


some more smoke




cpu could run to -110' before coldbugging and the gpu could handle about -90'


seems we picked up some water vapour by not keeping the ln2 interim container closed


yup...gpu mount looks good too


some 3D...no screenie for 03 as we were running out of ln2...'06 and aquamark didn't run for some reason




all in all a succesfull weekend besides the few benchies we missed.
would have been great to have a core that does 5.5ghz on ln2 too...this one wouldn't even at 2.06volts...haha
anyway the hunt continues ...

[G H Z]

Nice pics & nice container collection you've got going fly

[kiwi]

Bios flash under LN2, that's the spirit

[erwinz]

Bios flash under LN2, that's the spirit

nice.. this is scary..

[Timbosan]

awesome results guys, well done

[Solarfall]

really good scores.
and what a impressive collection of pots you have there

[before]

Nice ones

BTW you may wish to turn LargeSystemCache reg value to 1 prior to run Spi 32M. Win XP doesn't have it enable by default while 2k3 does.

Anyway, nice benchies.

[Oliver]

Looks good .

Congrats with the archivements.

Keep pushing it .

[TraX]

@ All - Thanks for the comments

@ Before - Thanks for the advice, the 32M run is not well tweaked - we will save that for next time

Not entirely sure why we could not get the GPU to play this time round, but as with all things the first attempt on our current hardware with news pots & stronger cooling always leaves a fair deal of questions, but gives alot more answers

[overcrash86]

over 2.1v benching C2D

are you made ?

[Morais]

LOL @ bios flashing with LN2...Awesome pics and results guys, very cool

[Nosfer@tu]

over 2.1v benching C2D

are you made ?

WHY NOT ?

If it climes go for it

Love your concept with tape
Did you just tape the memmory on that 8800 card ?

[google]

wow, there are some really nice results. congratulations !

and thanx that I am allowed to use your pot - building plan. I will try to get such results too in three weeks, and of course you will see some pictures about it here.

greets,

your search engine.

[dinos22]

love that pot

[s e t h]

thanks again everyone...

@ Nosfer@tu - yes we taped up the 8800gtx ram too and half the rest of the front of the card...also the back of the card was taped...and so was the entire topside of the board around the cpu....this tape thing works well if the card/board is flat enough

@ google - looking foreward to your success too...this design actually works best for dry-ice...for ln2 the surface area is too high and temps fall very fast if you overpour...the key is small splashes of ln2 every few moments...or alteratively start by taping closed or otherwise blocking off about half the surface area holes...that will stop the temps from dropping too rapidly and give you more manageable temp control

edit/ google - whover does the drilling...if its a drill press and drillbit style it is advisable to clean the copper shaving off and oiling your bit every hole you drill

[tiborrr]

You may want to upgrade your insulation kit next time. Great job anyway!

[dinos22]

@ google - looking foreward to your success too...this design actually works best for dry-ice...for ln2 the surface area is too high and temps fall very fast if you overpour...the key is small splashes of ln2 every few moments...or alteratively start by taping closed or otherwise blocking off about half the surface area holes...that will stop the temps from dropping too rapidly and give you more manageable temp control

now i understand why the designs are changing for LN2 pots

excellent insight

[Dekara]

Congrats on courage, must be a great feeling flashing bios on LN2 with 2v+ vcore .
For SS and just spi 1m 2.1v vcore may be painlessly but 32m run on that high vcore is wooooooooow .

Great run .

EDIT: Great collection of pots!

[Monstru]

Great results and a nice colection of pots. I take it that copper is very cheap in your country?