Heres OCZ sandra at 262,
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Heres OCZ sandra at 262,
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My Corsair at at 254 same timings:eek:
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gfx doesnt seem to matter, I've even tried a GF2 MX hehe...
the 3.3 is at 3.3 and a tad. 3.0-3.20V gives me about the same as 2.80.....though i must say the board doesnt do more than 233 no matter what i try anyway. I can put lower LDT and it will get me 1-2 MHz more but there is no way i can run 240 with any timings. Guess maybe i dont have a good SK8V.
Its only academical anyway....i dont bench anymore
edit : the difference between the OCZ and Corsair may lie somewhere in SPD programming... the screenie of the OCZ doesnt show any bank interleaving, you can only put it on "auto" or "disabled" in BIOS...maybe the BIOS is disabling it in auto mode for the OCZ. manually disable it on the corsair and see what the scores are and if you get any increased OC?
What is this??Quote:
Originally posted by JCviggen
Its only academical anyway....i dont bench anymore
OPP
well there's no point in it... for me personally there's not much motivation in shooting for 3rd or 4th place in something, and the cooling arms race is going a bit too far for me.
Try to change the setting on the Corsair as i suggested above? :)Im curious about the score difference now, it has to be the BIOS/SPD interaction
:eek:
Your right, the OCz does dissable the 2way. With the corsair dissabled 2way it does clock to 260, scores are about 20 over OCZ at same settings.Quote:
Originally posted by JCviggen
Try to change the setting on the Corsair as i suggested above? :)Im curious about the score difference now, it has to be the BIOS/SPD interaction
MM,
I'm busy but will try it in a bit.
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Have to ajust. My XT going 585/452 right now.Quote:
Originally posted by OPPAINTER
Nice setup Tom, killer clocks on that chip, how high can you run 3D at.
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Can you go higher than 2.11 volt on your SK8V?
Just tried my old IC7/P4 rig the bord version 1.0 can only do 296 FSB:rolleyes:
Yes, R1150 on sek R507 on prim.Quote:
Originally posted by macci
Tom, two separate cascades, one for CPU one for GPU. So total of 4 compressors :D
What refrigerant did you use there? R1150? What kind of full load evap temps are you getting with it?
I see you useing Gainward Ti4600 for pifast tests, that is one nice card =)
When it is -112 C and I load with 155 wat for 3 minuts the temp is -86 C. Normal bench I think is below -105/-115 C all the time.
When it's -112 and I load with 100 wat for 3 minuts its -96 C.
Amazing Tom!
I really like the setup :D
65kg :banana:
:toast:
I was able to squeeze a little more from my Mach1
http://fugger.netfirms.com/4764.jpg
Opp has one in the 4.7's as well. Post it up Opp
3.2C
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Hey you cascade gurus,
Just wondering how long power-up takes on your rigs. IOW, how long do your cascades have to run before they are at absolute zero?
Obviously, you don't just power-on your PC's "cold," so to speak.
thats a very good question, i have offen wondered that myself!
It would take forever, seeing as absolute zero has never been acheived.
smart a$$.
:p: LOL
Absolute zero would be -273c or -459f.
Power up time on the cascade rig I built (For Fugger) depends on settings, for a -86 loaded about three min pull down, it can be cut to less than sixty sec. if the PEV is opened on start to flood the evap, seeing how this system actually has a 1/2 ton capacity and this is about two times what the EE puts out then start up could be done at the same time the second stage starts. Currently it is dialed in at -86to-90 unloaded and stayes in the same range under the EE processor load.... While looping 3dmark.....and p4ee@4.4gig
edit: My condensing pressure for R508b is 145psig and my suction is .5 to 1 psi
I increased the Diameter of the suction.
We didnt put enough gas in. estimated charge of 8~10 oz. I have 2x to 3x internal volume now
180psi in the system at ambient, I let first stage run for about 1 minute before I turn on second stage for minimal head pressure.
With my valve opened more than 50% I can slam to near max temp in less than 60 seconds on second stage. So total fire up time is about 3 minutes.
My mach1 can turn on @ 4Ghz without any cooldown time. It never reaches +32c on the display before it nose dives towards error mode at -53c
I have a hand valve to adjust temps accuratly on the fly. I can run at 10 psi and have unreal capacity and get too much cooling back to the compressor and I can pull into a vacuum and still have unreal capacity but the compressor will warm up to about 115F. My valve responds to load and whatever temp I set it at it will stay. I have about 2 degree temp variation with HT disabled when I run benches at full speed.
Nice, much quicker than I thought. Does sound sort of like a Rube Goldberg contraption though.Quote:
Originally posted by FUGGER
With my valve opened more than 50% I can slam to near max temp in less than 60 seconds on second stage. So total fire up time is about 3 minutes.
My mach1 can turn on @ 4Ghz without any cooldown time. It never reaches +32c on the display before it nose dives towards error mode at -53c
I have a hand valve to adjust temps accuratly on the fly. I can run at 10 psi and have unreal capacity and get too much cooling back to the compressor and I can pull into a vacuum and still have unreal capacity but the compressor will warm up to about 115F. My valve responds to load and whatever temp I set it at it will stay. I have about 2 degree temp variation with HT disabled when I run benches at full speed.
How much you charge Fugger for that, Chilly1?
As for the absolute zero smart@$$, I am well-aware of the third law of thermodynamics. I was speaking colloquially.
There is only One switch and one adjustment. there is no need to do anything else. as for cost $2800 shipped.US Only
Working on a new box design I will put it in a 12"W,20"H,20D and it will weigh less than 80lbs.
And sound the death knell for the affordable top spot. :|Quote:
Originally posted by chilly1
as for cost $2800 shipped.US Only
No offense intended.
http://www.xtremesystems.org/forums/...424#post292424
Working on this as an affordable alternative...http://www.blairwing.com/images/autocacade.jpg
EDIT: added pic
Man, if you could shrink this down to prommy size and use it 24/7 at -100.....you would really have something bigtime! You wouldn't be able to make them fast enough if they were more affordable (competitve price wise). ;)
We shall see, getting it to be stable is going to be the challenge.
Parts and labor to build is around 700-800... we shall see how well it works......
Just by a quick glance... is that subcooling at work?
I tried that with my direct die but only dropped 3C with a hell of a lot of work. Ran the capillary within the return line.
$4.50 per liter and twice as cold...
Albeit a bit more tedious to bench with...
Liquid Nitrogen
C
is it even worth the cost to bench with ln2?
how fast does ln2 evaporate? like, in the 7-15 minutes it takes me to bench on air (including cool down times), how many liters of ln2 would be gone?
Reminds me of a couple of cars I've had...LOLQuote:
Originally posted by FUGGER
We didnt put enough gas in. estimated charge of 8~10 oz. I have 2x to 3x internal volume now
180psi in the system at ambient, I let first stage run for about 1 minute before I turn on second stage for minimal head pressure.
With my valve opened more than 50% I can slam to near max temp in less than 60 seconds on second stage. So total fire up time is about 3 minutes.
My mach1 can turn on @ 4Ghz without any cooldown time. It never reaches +32c on the display before it nose dives towards error mode at -53c
I have a hand valve to adjust temps accuratly on the fly. I can run at 10 psi and have unreal capacity and get too much cooling back to the compressor and I can pull into a vacuum and still have unreal capacity but the compressor will warm up to about 115F. My valve responds to load and whatever temp I set it at it will stay. I have about 2 degree temp variation with HT disabled when I run benches at full speed.
Yes and no There will be two refrigerants in this R134a and R23Quote:
Originally posted by Hallowed
Just by a quick glance... is that subcooling at work?
The R134a will evaporate and condense the R23.
I'm sorry! I don't want to go back a read the entire thread...I on slow dial-up!Quote:
Originally posted by chilly1
We shall see, getting it to be stable is going to be the challenge.
Parts and labor to build is around 700-800... we shall see how well it works......
Is this a dual evap??...the size of a prommie? If so.....you're going to get a PM from me! :D
Just out of curiosity, what kind of compressor would be required to recompress LN2?
Well,Quote:
Originally posted by pik-ard v1.1
is it even worth the cost to bench with ln2?
how fast does ln2 evaporate? like, in the 7-15 minutes it takes me to bench on air (including cool down times), how many liters of ln2 would be gone?
10 liters on LN2 is enough to make a NUMBER of full 3D runs, and if anyone thinks these 110% cascade units are for 24/7/365 use...I've got a bridge to sell ya...
C
Hmmm....the size of a diesel locomotive??Quote:
Originally posted by STEvil
Just out of curiosity, what kind of compressor would be required to recompress LN2?
C
They're not......but I believe it's possible that they could be made to run 24/7 with a lot of work (and $ :( )Quote:
if anyone thinks these 110% cascade units are for 24/7/365 use...I've got a bridge to sell ya...
Right now, the -100C 24/7 Cascade is a dream. Just a few observations:
1) Even with Dry Ice, SOOO much coldness (is that a word?) is transmitted throught the PCB of the motherboard, that the entire board will begin to sweat.
2) Running the current Cascades in your office would be kinda' like sitting next to an idling Harley Davidson.
3) Size... 'nuff said.
4) Why?
I guess what I'm saying is... this Cascade madness is just "freezer racing". LN2 is colder than phase change will EVER be, possibly even TOO cold, like Macci says. So to me...LN2 and Super Cascades are in the same class, SUPER Xtreme OC'ing. The main advantage of phase change is the time to bench and the ability to concentrate on tweaks and benching. Transferring LN2 from a dewar to a double cup of top ramen noodles and then pouring that into a LN2 container WHILE watching temps sux. But a $3000 Cascade... 'dunno about that. That would get me 500 liters of LN2 and pay an asssistant $10/hr to fill my container for 100 hours.
C
"if anyone thinks these 110% cascade units are for 24/7/365 use...I've got a bridge to sell ya..."
I personally don't want my bench rig used 24/7 or by anyone else...It's mine! I alone will dorke it... :D
Maybe that's why..I'm typing on a PII 450 atm! :p:
well hate to tell ya ... we ran Fuggers rig will run 24/7 for five days at comdex with out a hitch....
My 404 mach1 runs 24/7 at -44c loaded. I never would have thought that possible just a few months ago. Sooner or later someone will build a cascade for everyday use. Probably someone from here too. I'd say there's still a ways to go yet, but some of these guys have made some impressive rigs lately and they are just going to improve over time. They are getting colder and smaller all the time. I'd love to see it happen :D
sum it up in 3 words...
electric bill
wheres the 3rd? :confused:Quote:
Originally posted by FUGGER
sum it up in 3 words...
electric bill
thats going in my sig for all to see. :D
Fugger how is your electric bill since the 24/7 cascade began its operation.... What is it now -120F loaded thats -84C under load.............. and yes this is for everyday use.... only gotcha is the insulation you need a lot more of it....
Charlie..... I bow to your understanding in these matters :worship: BUT.. you crack me up with this XSplaination :ROTF: That's just such a right on "Look at it" I'm @ a loss for words! ;)Quote:
Originally posted by charlie
Right now, the -100C 24/7 Cascade is a dream. Just a few observations:
1) Even with Dry Ice, SOOO much coldness (is that a word?) is transmitted throught the PCB of the motherboard, that the entire board will begin to sweat.
2) Running the current Cascades in your office would be kinda' like sitting next to an idling Harley Davidson.
3) Size... 'nuff said.
4) Why?
I guess what I'm saying is... this Cascade madness is just "freezer racing". LN2 is colder than phase change will EVER be, possibly even TOO cold, like Macci says. So to me...LN2 and Super Cascades are in the same class, SUPER Xtreme OC'ing. The main advantage of phase change is the time to bench and the ability to concentrate on tweaks and benching. Transferring LN2 from a dewar to a double cup of top ramen noodles and then pouring that into a LN2 container WHILE watching temps sux. But a $3000 Cascade... 'dunno about that. That would get me 500 liters of LN2 and pay an asssistant $10/hr to fill my container for 100 hours.
C
Ed:// speel chker
went up from $120 to $180 last month
I am currently at -81.9c, its running now.
24/7 wouldnt be hard to do.
Just grease the entire board with wheel bearing or greasegun grease, heh.
It's like that ...but , it's worst that that! Even with my little modded system...The Vcard freezes..ok..more foam! Now, I can't read the voltage adjustments...less foam!Quote:
Originally posted by STEvil
24/7 wouldnt be hard to do.
Just grease the entire board with wheel bearing or greasegun grease, heh.
More volts...aaahhh no ice...da*m now I've got condensation into the AGP slot...
Now, it's raining...humidity is 100% ...Geez...there's water every where today....more grease?....more foam? :p:
pack the AGP slot with grease and solder wires to the volt monitoring points.
I think it was Dabit who made an interesting solution to insulation problem by isolating the entire board...either under pressure or in a vaccum..forget which. I would think under pressure would be easier to maintain, but I think he had it in a vaccumn.
The Dude...:) Thank you....I read that thread and actually, I've almost solved the volt/foam/humidity problem...as I have forced myself to finally take notes on the daily project... :)
As MrIcee sez "onward and upward" or somethin like that! :D
Hobocrow, glad to hear you're getting it sorted. It's a good idea he came up with. If you have to have problems, too cold is the one to have. :D
I still think pressure would be much easier to do and keep up. Post it up when you're done, I'd love to see how you worked it out. ;)
To get rid of condensation at such low temps why not use a freezer, not only, it takes care of the mobo and gfx but 2 cascades/machs/vapochills could fit inside and would lower the temps even more. If i'd ever get to do this, this is what i'd do.
http://www.frigidaire.com/images/ima...C/FFC20C4C.jpg
Just imagine... a super 3-Stage Cascade in the ultimate benching environment. THE MOON, seriously let's get together and bench on the moon :rolleyes: no humidity, good ambient temps, nice scenery kinda like Texas... :rolleyes: Although the big thick moon gloves might get in the way of mousing...
Napalm, the feezers much too small... it'd be warmed to ambient temps in 5 minutes. Now the second best place to bench (after the MOON I guess) :rolleyes: would be a walk-in freezer like at some restaurants! Fun. I just think we're a ways off from having a commercially viable -100C Cascade anytime soon. REMEMBER I have a completely functional -140C cooler right here next to my desk that i'm not using 'cuz I don't want to spend $1K on frig'. If I really wanted to play around with those kind of temps, wouldn't it be logical to play with LN2?? :rolleyes:
Plus!! I want to freeze tennis balls and throw them at stuff, I want to make LN2 ice cream, I want to freeze ping pong balls and throw them at the squirelrs in my back yard. I want to put a surgical glove on my hand with hot dogs shoved into the fingers and MY fingers in the palm. Then I'll dunk what appears to be my fingers (hot dogs) into the LN2 and then take a hammer then shatter them in front of wife/kid. I want to freeze a couple cans of shaving cream, peel open the frozen cans and toss the frozen shaving cream blocks into the neighbors Corvette convertible who wakes me up Saturday morning mowing his lawn at 7AM. Can anyone imagine what happens when the block of shaving cream returns to ambient temp inside the car interior?? Hehe
Ahhh....LN2, can you possibly have so much fun with a Cascade?
C
LN2 is cheating... one time use. you cant re-use your LN2 like u can a cascade.
I use to think that way... but hell, Cascade is just as Xtreme as LN2....the only thing unfair about it is that it's too damn cold! hehe...
http://www.blairwing.com/images/cryopump.jpg
Colder than Ln2... Will do 14K
This is setting on my kitchen counter.... it's a cryopump 2 stage displacer uses hydrogen.
:slobber:
MUCHO fun...
C
Fugger has the hydrogen compressor and all we have left to do is hook this baybe up... It Should do -180C @ 200W if I can the first stage displace to run at 100%.
Will be very interesting to watch...
C
I need to build a vacume chamber and we will need to condense all the oxygen and nitrogen from the space for insulation.......will be 3 days between runs..... unless we can do it all remotly....
wow...
is there anything colder than LN2/that hydrogen compressor dealie-bob.. lol?
i think ill have to win the lottery and drop 15k on some -300c cooling and submerge my comp in mineral oil or something LOL. if i get the $.. im goin for it.
what kinda temps should that hydrogen thing give fugger when its in a cascade or however it will be used?
I still like the dark side of the moon idea :rolleyes:
C
isnt ambient dark side moon temps somewhere in the three digit negatives?
suggest it to Tom Holck :pQuote:
Originally posted by charlie
I still like the dark side of the moon idea :rolleyes:
C
Well I will try it in a month or so but it will do only 70W@40K and if I am guessing correctly it will be around 200+W @ 150k -123C Really insulation will be a #@@$%@^.
This uses a 5 hp hydrogen scroll that removes the heat generated by the two stage displacer in the cold head in the pic. A displacer has a heat absorbing disk that will modulate at about 5khz in the head to transferr the heat from the cooling surface to the rejection surface this in turn s cooled by the hydrogen gas.
I think it's called the jenken cycle. Simmilar in function to a stirling displacer...
Yes we willhave to decal this with the proper attire when we runit.;)
I hope we don't leave a crater u know dark side of the moon and all...........
so that unit shoudl provide about -123°C when its put together?
amazing. how cold theoretically can these kind of systems get? before you must use something along the lines of LN2?
LOL!!!Quote:
Originally posted by charlie
Just imagine... a super 3-Stage Cascade in the ultimate benching environment. THE MOON, seriously let's get together and bench on the moon :rolleyes: no humidity, good ambient temps, nice scenery kinda like Texas... :rolleyes: Although the big thick moon gloves might get in the way of mousing...
Napalm, the feezers much too small... it'd be warmed to ambient temps in 5 minutes. Now the second best place to bench (after the MOON I guess) :rolleyes: would be a walk-in freezer like at some restaurants! Fun. I just think we're a ways off from having a commercially viable -100C Cascade anytime soon. REMEMBER I have a completely functional -140C cooler right here next to my desk that i'm not using 'cuz I don't want to spend $1K on frig'. If I really wanted to play around with those kind of temps, wouldn't it be logical to play with LN2?? :rolleyes:
Plus!! I want to freeze tennis balls and throw them at stuff, I want to make LN2 ice cream, I want to freeze ping pong balls and throw them at the squirelrs in my back yard. I want to put a surgical glove on my hand with hot dogs shoved into the fingers and MY fingers in the palm. Then I'll dunk what appears to be my fingers (hot dogs) into the LN2 and then take a hammer then shatter them in front of wife/kid. I want to freeze a couple cans of shaving cream, peel open the frozen cans and toss the frozen shaving cream blocks into the neighbors Corvette convertible who wakes me up Saturday morning mowing his lawn at 7AM. Can anyone imagine what happens when the block of shaving cream returns to ambient temp inside the car interior?? Hehe
Ahhh....LN2, can you possibly have so much fun with a Cascade?
C
Earth's moon ? Nah, how about Neptune's moon, Triton, –390°F ? I think it's the coldest place in our solar system, it's got active volcanos that look like geysers and shoot crystals of nitrogen, perfect place for cooling.
Really this is a cryo pump used to cool superconducting magnets in an mri imaging system. Nitrogen can't get as cold as this thing.
It will go to -259C or -434F
-434F ??? Holy crapn' shnitz !Quote:
Originally posted by chilly1
Really this is a cryo pump used to cool superconducting magnets in an mri imaging system. Nitrogen can't get as cold as this thing.
It will go to -259C or -434F
chilly1, so how much for a fully operational kit, the whole thing ? When ?
It will only cool a 1Watt load at those temps. -123C @ 200Watts though. I think Fugger has maybe $300 in it Ebay or something> Bought in pieces and now almost ready to go.
Actually a functional unit rebuilt is 5 to 40 grand depends on how many hours on it.
Sometime after Feb 1 need to do ces (consumer electronics show) first....
Wanta make som nitrogen snow balls???
What's the generic name for this sort of cooling chilly1 ?
How does the hydrogen arrive ? Do you or Fugger smoke ? I can't imagine not smoking my pipe whilst benching ( j/k).
I guess this would be the most extreme cooling ever applied to a PC cpu ( technology wise, rather than temp wise). At what sort of temps do semiconductors start to lose their semiconductive properties, if at all ? If V=IR you wouldn't want R to go down and I to shoot up in nomal metals as well.
To avoid consensation it might be quite nice to have the entire motherboard in a perspex container and blow Nitrogen through it. If you let the Nitrogen expand it would also be cold as well, so killing two birds with one stone.
The whole motherboard in a sub zero celcius , zero moisture environment with extreme cooling applied to cpu and gpu would produce excellent results.
Just theorising of course. Might be things I have missed ( more than likely ).
Regards
Andy
1 watt load ? What about 0 watt ? Just $300 in parts, wow ? Of course it's the know how, work, time that costs. So, if i'll ever have the money for a functional unit like this, you're the One to cantact ?Quote:
Originally posted by chilly1
It will only cool a 1Watt load at those temps. -123C @ 200Watts though. I think Fugger has maybe $300 in it Ebay or something> Bought in pieces and now almost ready to go.
Actually a functional unit rebuilt is 5 to 40 grand depends on how many hours on it.
Sometime after Feb 1 need to do ces (consumer electronics show) first....
This is a cryo pump and is used in vacume chambers, this is a tame one there are cryo pumps that can go down to 2K ...-456.07
The other end of this is a five hp water cooled hydrogen compressor, It uses absorbers in the discharge to get the proper density of hydrogen. This cryo pump will freeze nitrogen.
IBM has had CPU's at -200 and lower, they discovered that CMOS's switching speed is doubled at these temperatures.. what we are finding from the Ln2 guys is that around -120 something is happening that wipes out the processors. It may be that the dissimilar elements of the processor are contracting at different rates and this is the breaking point???
This was a lucky find on ebay from salvage... just luck. Fully functional units are VERY expensive. We may just get it working and sell it. But it would be nice to try it.
:eek: :slobber: :sick:Quote:
Originally posted by chilly1
This is a cryo pump and is used in vacume chambers, this is a tame one there are cryo pumps that can go down to 2K ...-456.07
The other end of this is a five hp water cooled hydrogen compressor, It uses absorbers in the discharge to get the proper density of hydrogen. This cryo pump will freeze nitrogen.
What i mean is.......that's just sick.
That last sentence seems very plausible, contracting at different rates and different amounts ? I suppose plopping LN2 on a cpu at room temp produces a very large rate of temperature change, whereas other methods are relatively slow.Quote:
Originally posted by chilly1
This is a cryo pump and is used in vacume chambers, this is a tame one there are cryo pumps that can go down to 2K ...-456.07
The other end of this is a five hp water cooled hydrogen compressor, It uses absorbers in the discharge to get the proper density of hydrogen. This cryo pump will freeze nitrogen.
IBM has had CPU's at -200 and lower, they discovered that CMOS's switching speed is doubled at these temperatures.. what we are finding from the Ln2 guys is that around -120 something is happening that wipes out the processors. It may be that the dissimilar elements of the processor are contracting at different rates and this is the breaking point???
Have you or Fugger noticed any decrease in performance of Fuggers chip over time, I assume it goes through cycles of cold and warm , ie is not always down at -80C.
Regards
Andy
Originally posted by chilly1
"IBM has had CPU's at -200 and lower, they discovered that CMOS's switching speed is doubled at these temperatures.. what we are finding from the Ln2 guys is that around -120 something is happening that wipes out the processors. It may be that the dissimilar elements of the processor are contracting at different rates and this is the breaking point???"
Originally posted by zakelwe
"That last sentence seems very plausible, contracting at different rates and different amounts ? I suppose plopping LN2 on a cpu at room temp produces a very large rate of temperature change, whereas other methods are relatively slow.
Have you or Fugger noticed any decrease in performance of Fuggers chip over time, I assume it goes through cycles of cold and warm , ie is not always down at -80C."
So, what would be the lowest safe temp ? -110-115 ?
A freezer or mini fridge would work really nice to stop condensation actually, the only problem is that you would ONLY want the motherboard and peripherals in there, NOT any other hardware than absolutely needs to be..!
All the -50c and under guys should have their hardware in a fridge moded to a case, hehe.
freezing nitrogen? wow man!
"Have you or Fugger noticed any decrease in performance of Fuggers chip over time, I assume it goes through cycles of cold and warm , ie is not always down at -80C."
yea in the 3dmark runs I have noticed his cpu is usually overclocked to like 4.2GHz his max was 4.44GHz but I rarely see him run at the max, more like 4.35GHz sometimes as low as 4.05GHz
It's not just the condensation, it's also about cooling the cooling system/s, maybe a second freezer just for that.Quote:
Originally posted by STEvil
A freezer or mini fridge would work really nice to stop condensation actually, the only problem is that you would ONLY want the motherboard and peripherals in there, NOT any other hardware than absolutely needs to be..!
All the -50c and under guys should have their hardware in a fridge moded to a case, hehe.
A ~20 cu. ft freezer at max cooling should handle 2 vapochills/machs/bakers + the other components, just assuming.
Haha! Ya that would not be good.Quote:
Originally posted by chilly1
I hope we don't leave a crater u know dark side of the moon and all...........
Man, you sure have some interesting projects there. I wish I knew how to build a simple homemade Prommy/cascade with a minifridge or something like that.
Can you point me in the direction of any not overly technical information on this? Not that I couldn't understand it, I simply don't have the time to dedicate to learning HVAC design principles.
G H Z~
:thumbsup:Quote:
Originally posted by JCviggen
suggest it to Tom Holck :p
We need a to moon system?! one for the grafik also:rolleyes:
Fugger,
Whatever happened to that nitrogen cooled laser sighting cooler off the jet that you outbid me on? Ever come up with a way to power it? Still have it? Let chilly1 take a look at that thing. :D
Another engineer talked me out of it reminding me that I was not able to power it.
ahhh...too bad...was hoping there might be some way to power it. Would have been awesome to play with. :D
I have my MOD on -6/-8 degree. Almost all komponent including mosfet are frozen:DQuote:
Originally posted by TheDude
I think it was Dabit who made an interesting solution to insulation problem by isolating the entire board...either under pressure or in a vaccum..forget which. I would think under pressure would be easier to maintain, but I think he had it in a vaccumn.
I am going to make a solution, where CO2 is in a bag around the MOB. It is the water in the air, that is the problem, without water, there is no kondensation and iceformation.
Just make an air-tight solution and remove the water.
indeed this is true, thats why someone suggested a sealed nitrogen container for the mobo. i think that would work pretty well being a pretty stable gas and all.
anyone know the temp of liquid oxygen? i seem to remember it being pretty darn cold.
Sounds like another interesting plan Tom :DQuote:
Originally posted by Tom Holck
I have my MOD on -6/-8 degree. Almost all komponent including mosfet are frozen:D
I am going to make a solution, where CO2 is in a bag around the MOB. It is the water in the air, that is the problem, without water, there is no kondensation and iceformation.
Just make an air-tight solution and remove the water.
BTW: how is the 3dmark2k coming along?
The grafik still not god only 585/456Quote:
Originally posted by Try-this
BTW: how is the 3dmark2k coming along? [/B]
I want a killer bench, and I think I can do it.
A little time in the weekend we vill se.
:rolleyes: :(
To bad about that graphics card :(Quote:
Originally posted by Tom Holck
The grafik still not god only 585/456
I want a killer bench, and I think I can do it.
A little time in the weekend we vill se.
:rolleyes: :(
Hope you get it going better :stick: ;)
(could be nice if I had a system where a 9800 XT was holding me back :p: ) :D
Quote:
Originally posted by Tom Holck
The grafik still not god only 585/456
I want a killer bench, and I think I can do it.
A little time in the weekend we vill se.
:rolleyes: :(
Those clocks arent too bad, should be good for 30k with that cpu of yours. Then you can try other 9800xt's for 31k :banana:
The problem is that your cooling systems create a lot of heat by themselves, not to mention all the heat they "remove" needs to be dumped somewhere, too.Quote:
Originally posted by NapalmV5
It's not just the condensation, it's also about cooling the cooling system/s, maybe a second freezer just for that.
A ~20 cu. ft freezer at max cooling should handle 2 vapochills/machs/bakers + the other components, just assuming.
A freezer is a limited airspace, and i'd say give it 5 minutes before its +30 internally.
A mini freezer/fridge used only to put the motherboard in (hdd's get fairly hot!) would stop condensation if you had it kick in around -10c and kick off around -30. Could cut a hole and hook up a dehumidifier too if you opened it to change stuff a lot.
MM, I think you got mixed up.
IBM vs MRI
The head is from a MRI, IBM has been doing -200 testing
so build an evaporator block with fins in it instead of just a chamber?
Haha, we knew that. Everything was spelled correctly;)Quote:
Originally posted by MickeyMouse
lol im not in your conversation I just copy and pasted that info from some site, lol..
Im wayyyy off your topic here I just here alot of users stating L-helium is better than LN2 where as it doesn't have the heat removal compasity as LN2 :)
Mine takes 10 min booting time. When the sek stage turns on, I can turn on the computer, then the temp drop 5 degree pr/sek.Quote:
Originally posted by uclajd
Hey you cascade gurus,
Just wondering how long power-up takes on your rigs. IOW, how long do your cascades have to run before they are at absolute zero?
Obviously, you don't just power-on your PC's "cold," so to speak.
Right down to -112C.
When I turn on later the time is mutch faster, about 5-7 min.
:D
Now the cpu kontakt is god.Quote:
Originally posted by FUGGER
I was able to squeeze a little more from my Mach1
http://fugger.netfirms.com/4764.jpg
Opp has one in the 4.7's as well. Post it up Opp
what about one in the 4.8's
Now going back to the FX for more fun:banana:
4.85MHZ! Freakin awesome man! :eek:
:toast:
though 90 MHz isnt a lot for being like 70C colder lol
Yeah...it's getting to the point of diminishing returns on the super cooling.Quote:
Originally posted by JCviggen
though 90 MHz isnt a lot for being like 70C colder lol