I would like to show first results from my CPU water block testing. I included some outdated water blocks but I guess it'll be a nice comparison to their successors.
Some info about testing subjects a.k.a. water block ID:
Little bit different texture on top, really nice!
Tweaking options! But it takes 3x more time. Worth if we find the best jet for our CPU.
Supplied with top thermal compound.
Easy to remount, not so easy to install easy mount (short screws).
Lower end of EK CPU water block, you can get it even for 34,94? (non nickel version).
No need for dedicated inlet port due to water block design.
Shuriken? I don't wan't to drop it on my foot.
Very nice mounting system.
Bling factor included in box. Should check for backplate issues with your motherboard. On Maximus V Gene there are capacitor legs where the backplate comes.
Wasn't really happy with 2011 mounting kit. Couldn't install it like that, had to sand down the area around holes.
Thumb nuts provided with 2011 mounting kit are waay better than the original ones.
I purchased two separate water blocks so I could test on both platforms (1155 and 2011). Water block base is the same in all versions so you can also buy rebuilding kit for each socket (13,95 ? for AM2/AM3, 13,89 ? for 1155/1156).
Overall, it would be nice if manufacturers could give us prefered/best mounting orientation for a specific CPU. In results, you'll find how much difference can placement yields. In charts look for Koolance CPU-380I and Koolance CPU-380I@90?. For all other water blocks I have used the best possible mount orientation. In general, inlet port is labelled.
I'll just stop chitchatting, those were just my biggest personal impressions on tested CPU water blocks.
Let's hop to used methodology.
Water block was installed using original (supplied by the manufacturer) mounting with the use of Arctic Cooling MX-2 thermal compound. Gelid GC-Extreme is a bit expensive for so much remounting. MX-2 spreads very nice and should have a short curing time. According to personal tests with water cooling it's around 1?C warmer than Gelid GC-Extreme.
Cpu was stressed with Prime95 v27.9, build 1 using smallFFTs test. After running for +30 minutes data was saved, water block remounted with a fresh layer of thermal compound and so on. Test was run five times, the one with the best and worst deltaT average between water and CPU were eliminated. Out of remaining three was calculated the final average deltaT between water-CPU and water-IHS.
For the first batch of tests I chosed:
CPU: Intel 2500K, overclocked @4700 MHz, 1,464 V, estimated dissipation ~187 W.
VCCSA 1,112 V
Vccio 1,160 V
Vpll 1,862 V
Mainboard: Asus Maximus V Gene, bios 1204
Memory: 2x4Gb Samsung @1600 CL9-9-9-27 1T, Dram 1,601 V
2500K with a hole for K-type thermocouple:
480 mm radiator with 4x120mm/38mm SCYTHE DFS123812H-3000 running at 5,089 V
EK DCP-2.2 pump running at 12,26 V
Power Consumption: 6.5W +/-10%
Q-max: 400 L/hr +/-10%
H-max.: 2.2m +/-10%
Noise: 17.2 dB
Norprene tubing 12,7/9,5, whole length ~1,5m
Fittings: 6x EK-PSC Fitting 10mm
3x K-type thermocouples, 1x in CPU IHS (drilled hole), 2x for measuring water temperature (about 5 cm above input port of water block), then logged with Voltcraft 304 (sample time 1s)
Real Temp 3.70 for logging core temperatures (sample time 1s)
CPU-water average deltaT
Relative performance index
CPU-water average deltaT over time
IHS-water average deltaT
IHS-water average deltaT over time
I think that charts say more than a thousand words in this section. But, we should be aware, that the big factor in those results is the pump (heavily depends on desing of water block, some will benefit, some won't or the difference be really small). I just wanted to simulate a standard 24/7 system that is kind of similar to mine (1x CPU + 2x full cover, 2x radiator running with the same pump).
In future, if there's a demand for it, I'll try to repeat this test with a "bigger" pump. Also looking to hook up this system to a flow meter.
In 1 or 2 days, I'll update this thread with some 3770K results, a week later with another socket, stay tuned.
Um, no awards?
Just one, a big thumbs up for all the reviewers.
Sorry for my english, it's been a while.