Three High-End Liquid-Cooling Cases Compared

Features
By Thomas Soderstrom
published

Test Configuration

Liquid cooling often offers excellent cooling capacity, but that wouldn’t matter much if hot case air destabilized another part of the system. In order to test both, we used an overclocked Intel Core 2 Quad processor to heat the liquid and a pair of HD 4870 X2 graphics cards to heat the air.

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ComponentDetails
CPU2x Intel Core 2 Quad Q96503.00 GHz, FSB-1333, 12 MB CacheOverclocked to 3.80 GHz, FSB-1688, 1.425V
MotherboardAsus P5E3 PremiumIntel X48 Express, BIOS 0402 (04/21/2008)
RAM2x Crucial Ballistx BL12864BA16082x 1024MB DDR3-1600 DIMMOverclocked to DDR3-1688, 1.90V
Graphics2x Gigabyte GV-R487-512H-BAMD Radeon HD 4870 GPU (750 MHz)512 MB GDDR5-3600 (Per Card)
Hard DriveWestern Digital Caviar WD5000AAKS500 GB, 7200 RPM, 16 MB Cache
SoundIntegrated ADI 1988B Codec
NetworkIntegrated Gigabit Networking
PowerUltra X3 1000W Modular
Chipset DriverIntel INF 9.0.0.1008
Graphics DriverAMD Catalyst 8.8
OSWindows Vista Ultimate 32-bit, SP1

New to today’s tests are a pair of Gigabyte HD 4870 graphics cards in Crossfire mode. AMD’s recent graphics processors are famed for both high gaming power and high power consumption, and should assist in our evaluation of case temperatures as other components compensate for the high electrical demands and intense workloads.

System performance doesn’t change with temperature unless a processor reaches its “thermal throttling” threshold. Since these cases are more than adequate for keeping components below their thermal thresholds at full load, benchmark performance wouldn’t be an issue. Focusing instead on cooling capability only required us to approximated full load prior to taking our temperature readings.

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3D Mark 2006Resolution: 1920x1200Video Quality: 4x AA, 8x AFTest: Perlin Noise (SM 3.0), Looping
Prime95 Version 24.14Test: Small FFT’sNumber of Instances: Four

All components were run at the above load for several hours before taking temperature readings.

Thomas Soderstrom
Thomas Soderstrom
Thomas Soderstrom is a Senior Staff Editor at Tom's Hardware US. He tests and reviews cases, cooling, memory and motherboards.
32 Comments Comment from the forums
  • or buy a cheap case... mod it with a 50 $ dremel... and then add your own watercooling setup and get much better cooling performance...

    thats what i'm going to do... not buy some case w/ water cooling.... unless its like a modded lian-li case... but those are like 800 bucks... so no thanks
    Reply
  • nerrawg
    Whoa the 4870 is still a pretty hot one even with that massive Koolance radiator. I wonder if that can be improved using a custom build with 2 separate loops and radiators - would be a bit more hassle though. Also be interesting to see how it compares to a 4870 X2 - my first assumption would be the X2 is hotter but that might not be the case as there could be a larger flow and surface area to allow for more heat dissipation. If your talking W/C for silent running, then custom built systems with big passive radiators (Toyota anyone?) and a good pump or 2 has to be the only true solution. Otherwise you're just running fans like an air cooling rig and the name of the game is still who has the quietest one..
    Reply
  • yadge
    nerrawgWhoa the 4870 is still a pretty hot one even with that massive Koolance radiator. I wonder if that can be improved using a custom build with 2 separate loops and radiators - would be a bit more hassle though. Also be interesting to see how it compares to a 4870 X2 - my first assumption would be the X2 is hotter but that might not be the case as there could be a larger flow and surface area to allow for more heat dissipation. If your talking W/C for silent running, then custom built systems with big passive radiators (Toyota anyone?) and a good pump or 2 has to be the only true solution. Otherwise you're just running fans like an air cooling rig and the name of the game is still who has the quietest one..
    I'm pretty sure the videocards weren't water cooled.
    Reply
  • randomizer
    thogromor buy a cheap case...Yea but alot of cheap cases are fugly.
    Reply
  • nerrawg
    Hehe whoops you're right - I guess I should have looked at the pics - no wonder it was so hot. Don't understand why they didn't use some splitters and cool 4870beast #1. Can't see how you can complain about noise and temp when you're not even using your full 750-1000W water cooling capasity. Also good eye editor on changing frames per sec to temperature celsius on graph X axis.
    Reply
  • gaiden
    nice info, though i'm not sure, as hardware gets smaller - lesser heat, would i need a water-cooled setup. personally i think fan setup with a top of the line HS would do plenty. the TJ-09 and Lian Li's are very well built - i have a 7 fan setup + IFX-14 in a lian li 2100 plus II cant hear anything at all. (though it really helps to get good fans :) for GPU's there are several 'spot-cooler' options. overall 7-8 'good' fans + 1 'awesome' cooler would cost only less than 1/2 of the $500 TH spent on water-cooled solution, and the air-cooled should improve air movement inside the case as well.
    Reply
  • stoner133
    I find it strange that the video card temps are so high, I run a Koolance system and using their waterblocks on both of my 4870's in crossfire my temps never get above 42c after hours of playing Crysis and my coolent reaches the GPU's after it goes thru the CPU waterblock. The two degree temp difference does happen, AOD does show the first card at 40c while the second is 42c.
    Reply
  • stoner133
    thogromor buy a cheap case... mod it with a 50 $ dremelhttp://en.wikipedia.org/wiki/Dremel ... and then add your own watercooling setup and get much better cooling performance... thats what i'm going to do... not buy some case w/ water cooling.... unless its like a modded lian-lihttp://en.wikipedia.org/wiki/Lian_Li case... but those are like 800 bucks... so no thanksThe Koolance cases are modded Lian Li cases and there no where near $800, they start at just under $400 and go to just over $600
    Reply
  • Shadow703793
    They could have silver plated the Koolance CPU-340 block instead of gold plating it (silver > than gold in heat transfer).

    These kits are worth an entire PC so imo, I would mod it my self. It's not that hard to do, providing you have the time to do it.
    Reply
  • Crashman
    9463632 said:
    The Koolance cases are modded Lian Li cases and there no where near $800, they start at just under $400 and go to just over $600

    The case with no pump, water block, or reservoir is $400, but what do you do without the parts? A basic liquid cooling kit from Koolance, complete with only the needed parts, starts at around $600.

    Also notice:

    Test Configuration
    Liquid cooling often offers excellent cooling capacity, but that wouldn’t matter much if hot case air destabilized another part of the system. In order to test both, we used an overclockedhttp://en.wikipedia.org/wiki/Overclocking Intel Core 2 Quad processor to heat the liquid and a pair of HD 4870http://en.wikipedia.org/wiki/Radeon_R700 X2 graphics cards to heat the air.

    Graphics was left air-cooled to help determine effectiveness of case airflow. It would have been even better to use two 4850's for that, since they don't vent outside the case.
    Reply