backtop


Print 78 comment(s) - last by ok630.. on Apr 13 at 4:28 AM


IBM Hydro Cluster Water Cooling  (Source: IBM)
IBM Power 575 performs at 600 GFlops per node

Computer enthusiasts that overclock their CPUs have known for a long time that liquid cooling has the potential to cool the processor better than air cooling. Liquid cooling in the enthusiast space is common and has even given way in the extreme performance categories to much more exotic means of cooling processors.

In the supercomputer realm companies like IBM have traditionally relied on air cooling for the CPUs via air conditioning for the room the supercomputer is in. IBM introduced its latest supercomputer called the Power 575, which is equipped with IBM’s latest Power6 microprocessor. The Power 575 has moved from air cooling to liquid cooling and thanks to the liquid cooling useing water-chilled copper plates located above each processor, the new supercomputer requires 80% fewer air conditioning units.

The significantly reduced need for air conditioning means that the energy needed to cool the data center can be reduced by 40%. IBM researchers say water can be up to 4,000 times more efficient than air cooling for computer systems.

The Power 575 supercomputer has 448 cores per rack and provides over five times the performance of its predecessor and is three times more energy efficient per rack. Each rack features 14 2U nodes each consisting of 32 4.7GHz cores of Power6 and 3.5TB of memory. Each node is capable of 600 GFlops and is three times more efficient in GFlops per kilowatt than the Power5 air-cooled processors.



Comments     Threshold


This article is over a month old, voting and posting comments is disabled

RE: The water of life.
By DarkElfa on 4/9/2008 3:00:09 PM , Rating: 2
I'll tell you exactly why I don't use watercooling, when you have 4 grand worth of PC equipment and you build your own rig, you fear putting in a water system that could spring a leak or have a fault that could kill your entire system.


RE: The water of life.
By Misty Dingos on 4/9/2008 3:13:33 PM , Rating: 1
Hmmmm, I built my rig, it has four grand of gear in it and it is water-cooled. And "GASP" it leaked once too! Nothing fried. Tightened loose clamp, dried up mess, cleaned the electronics and rebooted. Still runs like a greased ape on fire. Oh and my PC doesn't sound like a collection of whirling dirt suckers.

Those that fear the edge should stay where it is safe and leave the adventures to those who dare!


RE: The water of life.
By AlphaVirus on 4/9/2008 3:21:41 PM , Rating: 5
quote:
I built my rig, it has four grand of gear

I hope you are putting that 4 grand to use, I spend 1 grand tops and can do everything. I could not imagine the power of 4 grand.
quote:
it is water-cooled. And "GASP" it leaked once too! Nothing fried. Tightened loose clamp, dried up mess, cleaned the electronics and rebooted. Still runs like a greased ape on fire.

I would question whether you were at home when this happened or if you were away. If you were away you better be thankful you didnt come home and your entire house was on fire.
quote:
Oh and my PC doesn't sound like a collection of whirling dirt suckers.

What a bunch of fluff, the only PC that might have loud fans would be a 1999 celeron at a pawn shop. If you buy any new PC from any computer shop, the fan will throttle down the speed to where its nearly silent.

quote:
Those that fear costly repairs should stay where it is safe and leave the waste of money to those who are rich !

Fixed


RE: The water of life.
By Carter642 on 4/9/2008 3:43:08 PM , Rating: 2
I spent about 2K on my latest full build that's watercooled. Honestly the difference in price between doing it air cooled vs water was about $250.

I DIY'd my own watercooling kit and I've learned the joys of drybreak couplings and braided abrasion resistant lines. Finding couplings to replace the stock nipples on the waterblocks was a bit of a PITA but now I have drybreaks on on my CPU, GPU, NB, radiator, and pump/resevoir. I can literally snap the whole thing apart while full without spilling a drop. I know it's costlier than hoseclamps and tubing but it's infinitely safer and more convenient. Maybe if WC companies made drybreak kits WC would be a little less daunting to new folks.


RE: The water of life.
By AlphaVirus on 4/9/2008 6:01:34 PM , Rating: 3
I do understand, to some, the easy task of having watercooling and not having fears. And like I said in my previous post, not everyone has expendable cash for a computer rig. Not only if 1 component goes bad, it would be death of the entire thing goes out. The wife would have me sleeping on the couch for a long time.

Personally I would not play baseball near the Louvre.


RE: The water of life.
By Misty Dingos on 4/10/2008 11:06:58 AM , Rating: 2
OK to be honest and fair my computer didn't cost four thousand dollars (maybe in Canadian dollars) But it was over three. The leak I had was on the cpu heat sink. No not a good place to have a leak. It leaked all down the side of the mother board while the computer was running. It caused all sorts of crazy behavior for about an hour. Then I noticed the leak. I turned off my pc and started cleaning up and fixed the leak. Most of the voltages on a pc are low. So arcing should never be an issue. Like I said I dried off the alcohol that I used to clean up the coolant put it back together and started it back up. Works fine. So if you don't want to water cool your PC don't. I like it so I will.

What I don't understand is the desire to leave your PC on 24-7. What is up with that? I am not exactly sure how many watts my computer draws on average but I know I don't want to pay for it when I am not there. If something happens to my computer, well I am there. Little problems are easy to fix. But big problems often grow from little problems left unattended.

But I am not going to tell you that you are living wrong if you leave your PC on all the time. That’s your business. But I would turn on the auto shutdown feature if your bios supports it.


RE: The water of life.
By ochadd on 4/9/2008 3:42:21 PM , Rating: 1
After experiencing a waterblock failure first hand I know these guys are risking allot for the improved cooling.

It nearly burned my house down after cooking for hours while away at work. After losing $2k worth of equipment and being reimbursed 20% of the purchase price it would take more than a better OC to get back into it.

The cost of a whole rack of equipment and the lost computing time would add up pretty quick. Might be worth it for 40% cost savings on the HVAC side.


RE: The water of life.
By PrinceGaz on 4/9/2008 3:52:28 PM , Rating: 3
Did you not have the option in the BIOS set to shutdown the system if CPU temperature exceeds whatever amount you felt would never be reached unless there were a problem?

I think I've got mine set so it shuts down if the Athlon 64 X2 processor passes 60C, well within its safe limit but quite a bit below the temperature it ever reaches - with the cooling working normally. If the CPU fan failed, the temperature would start to climb and when it reached 60C the PC would turn itself off. No problem.


RE: The water of life.
By jtemplin on 4/10/2008 12:54:49 AM , Rating: 2
Don't listen to these noobs. To the rest of you:
A good watercooling setup now will have redundant fail safes, not to mention BIOS shut down as another poster pointed out. No way your house or even your CPU is going to burn down. If you aren't capable enough to do it right, or not interested in the labor involved in building/maintaining it thats your call. But don't try to attack other posters by asserting that by taking the "risk" they are somehow foolish because you firmly believe in the illusory risks.

As someone else pointed out, use distilled deionized water and theres no concern of a short out. If your worried you add: flow meter with shutdown feedback just aft of water block, inline temperature sensor with shutdown feedback, low water sensor with shutdown feedback. There's really no excuxe other than your opinion, which is just that.

Here's a bunch of fluff for you...
quote:
Those that fear costly repairs should stay where it is safe and leave the waste of money to those who are rich !
Just leave it up to the big boys to figure out how to do the best, right =D


"The Space Elevator will be built about 50 years after everyone stops laughing" -- Sir Arthur C. Clarke

Related Articles













botimage
Copyright 2014 DailyTech LLC. - RSS Feed | Advertise | About Us | Ethics | FAQ | Terms, Conditions & Privacy Information | Kristopher Kubicki