Squelchy H50

gropingmantis · 22 Dec 2010 at 20:22

So I've had an H50 in my rig for about 5-6 months now and its been great!

Until recently when it started making odd squelching noises not just on startup but pretty much all the time. I thought "It sounds like there is air in there" so I turned the pump unit upside-down (heat exchange facing up) and it made a god awful sucking noise.
So I assume that a large amount of air has gotten into the system? I've looked for leaks and can't find any.

What should I do?? Can I RMA it or is it too late? Can a H50 be bled?

Also its been making an annoying buzzing noise this last month but I can only hear it with the fans turned right down.

shinester184 · 22 Dec 2010 at 21:02

There may be a very small gap somewhere in the system from the day it came off the production line, which has not given you any noticeable leaks, but the small gap has allowed water (over the 5-6 month period) to evaporate out. This may have caused bubbles/gaps to form in the loop, so now it's noisy.

The only reason I can think of for the noise after turning it upside down is that somehow the pump ran dry for a short amount of time (cos of a gap or something)

You stand a high chance of getting it replaced - it's faulty!

The only way you can bleed a H50 is by doing a resevoir mod, which is a wase of time tbh...

Yellowbeard · 22 Dec 2010 at 21:06

We will replace it if needed or you can check with OCUK and see if you are in their timeframe for replacment. Are you certain that the pump is running at full speed (appr 1400rpms) and that it is getting a proper 12v?

Corsair RMA Link

gropingmantis · 22 Dec 2010 at 21:14

Its running off the motherboard PWM and I've disabled the smart fan functions in the BIOS so I guess so.

gropingmantis · 24 Dec 2010 at 19:23

Well the H50 is off for RMA but what am I to do in the meantime? I've got an old fanless Zalman cooler sat on top of the CPU (computer is on its side as there is no way to attach it) and temps are about 45-50C idle

alex24 · 24 Dec 2010 at 19:24

Attach a fan to it?

gropingmantis · 24 Dec 2010 at 20:12

I cant its one of those umbrella fin coolers but I have 2 P12s aimed at it and its only gone to 40C. I guess this means no CPU intensive computing till the replacement arrives.