Could the term "extreme" be more suitable?
Could the term "extreme" be more suitable?
Heyho ;)
I have problems with my 2 X1950... Both are not coldbugged, but overclocking... :X with subzero temps, not even 700 at the cores are possible. I'll have to design a new BIOS... But resultswill come for sure.
The unit works like a charm, i'll open a thread at the xtreme overclocking forum.
I can't validate anything right now; the CPU-Z version i used after mounting the unit (i had to hurry up ^^) was 1.36.
5,2 GHz promised; more like 5,28 to 5,3
wow, that is simply a crazy unit. piotres you are the most creative SS builder i have seen, very nice work and it came out really good looking!!
It's amazing that it runs CF and CPU with temps colder then most deticated SS'.
have fun with it symphy.
Verry impressive to say the least...
I definately wanna see this thing in action with a beast system..
And prices would Own also :)
Not that I could ever afford one, but it would be good to know how much JIC..
that unit is awsome, i was testing that unit for a week with sympy and the rest of the overkill.oc member. the temps are huge :D piotres you made a very good job :)
*changes in to ninja suit and hunts down symphy*
Actually if i did that i dont think i could move that thing! Its HUGE! At least you can use your electricity meter as a Fan when you switch that bad boy on :P
Quote:
Originally Posted by piotres
Large hp produces more mass flow but not lower temps in the small evaps used in cpu cooling. By using large hp compressors,you just un-necessarily added a higher amperage draw on the electrical end=higher power bill for no reason.Plus higher total load.
The higher hp compressors also produce a higher "heat of compression" figure that makes a larger condenser necessary to reject total heat load(BTU's) for no reason.
A lower hp compressor with smaller condenser could do the same job,cheaper & better.while I,m sure your unit works great,in refrigeration, bigger is not always better. it's not like auto racing were pure hp benifits..Is the boiling point of the gas that produces the low temperatures & enough mass flow is needed to carry away the heat. each gas can carry a given amount of heat per pound,the flow rate needed and heat a given gas can carry can be calculated..but you must stay within certain internal velocities for the system to work correctly. To large a compressor just adds extra heat and probably more mass flow than needed.While I didn''t take your components and produce a design to prove what I,m saying,just by looking and reading what you posted ,I beleive you over sized the compressors. Running most standard compressors in a vacuum to produce lower temperatures is not a good idea from a longevity of compressor standpoint. I don't know if you did this or not.
There is a learning curve as refrigeration is more complex than it appears at first. Take the time to learn how to calculate all the parameters needed to build a great design that does not wast electricity.
Not discounting your work only giving advice so you can produce even better units. At this site I mostly try to give engineering advice in layman's terms if some wonder about my advice. Also I skiped many other important details in design and even some explanations are not complete as I don't intend this post to be a complete book.
keep on building :woot:
Some shoots from CEBIT 2007 :D :
http://www.extremecooling.net/index/...cebit_095_.jpg
http://www.extremecooling.net/index/..._img_0030_.jpg
http://www.extremecooling.net/index/..._img_0031_.jpg
Loaded Conroe X6800 @5 ghz :banana: .
http://www.extremecooling.net/index/..._img_0028_.jpg
Overkill-OC Team in action
Regards
Peter
Wow, nice job Piotres!!
nice job Piotres, very good job there mate.
Impresive unit Piotres!
You're great :up:
Amazing work and temps
Those rotaries must hate you for the amount of vacuum you are pulling :p: My 1/2HP rotary would hit 100+ celsius running 15" HG, can't tell how much you are running but it looks way down there. Amazing temperatures though, I'm glad I don't pay for the power to run that thing!
Great work peter!
My unit is really good but this one is really beautiful!
Your the man Peter :) realy impresive unit and scores well done mate.
Thats beautiful, its a work of art. Great job
With the oil sep he could add something like r11 to separate with the oil and cool the compressor.
wowwww.... i was wondering what would be the power consumption of that system ? 1000watts ? must be very healthy on electricity bill.
lol at dragging up a 1+ year thread