- 700 - 2400 RPM (PWM controlled) 110.0 CFM
- Radiator Dim. 151 mm (H) x 120 mm (W) x 49 mm (D)
- Fan Dim. 120 mm x 25 mm
- Fan Noise 27.4 dBA
Good Question 11/18/2011
This review is from: Antec KUHLER H2O 920 Liquid Cooling System
Did a review just after receiving this a couple days ago -- Hadn't shown up yet so here's another one.
This kit came without the manual or the CD, so I gave it a single star (hard to do better, when you don't have anything to test). Well, was going to wait for newegg to open in the morning and call, but instead did some searching on the net and found both missing pieces.
Got it installed and working the next day. It installed without any real problems, and the manual really didn't make it any easier... Common sense rules here. Used the pre-applied TIM for the install to check temps. Ordered Arctic Silver 5 with this kit, so I figured if temps were good no loss, if not so good I'd redo it with the Arctic Silver 5.
So... after redoing it temps were better, but still not as low as hoped for. This water cooler is on a AMD FX-8150 which will be overclocked to max on my Asus CHIVE MB. I'm at 4.875 GHz, fully stable, so it is for sure much better then the Noctua NH-U12P was do
Worse (best?) cons first:
Thermal transfer isn't anywhere as good as hoped for. If the CPU is at idle for about 3~5 minutes, the coolant temp is about 5~10 C. below actual CPU temps. It really should be within just a degree or 2 at this point. Under high load, high CPU temps (near 80 C. for a short time), the coolant temps never get above 39 C. What this means is thermal transfer isn't happening anything like it should. The ideal here is to have coolant temps follow CPU temps within a half minute or so. As the thermal transfer is made, the CPU temps should drop just about the same rate as the coolant temps rise. This is a "perfect world scenario" of course, but you get the picture, right. A sustained difference of nearly 40 C. is simply too great. It was even worse with the stock TIM application installation.
Fans are way too loud at full RPM.
It would be a nice gesture to have all the parts included in the purchase -- Not so fun having to search for them on the net.
I am not fully dissatisfied with this purchase. As a manufacture myself of other types of equipment, I understand pretty well the need to stay cost effective during construction. There are however places to do this where little is sacrificed. Seeing the poor thermal transfer in this product, I would have spent more time ($$$) in devising a better method to capture more heat from the CPU. This could possible have been something as simple as sandblasting the inner surfaces of the CPU block with some sharp angular media. It's not hard to get double the surface area with this process, even more if necessary.
Try and use metal parts where ever possible. Plastic backing plates are not so nice -- Kind of cheap in fact.
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