Clicking sound from Antec Kuhler 920

[ironmysox]

I see a few posts with this problem on the 620 but mine is on the 920. Got my cooler today, installed great and was running fine. Left the pc alone for an hour and the pump now sounds like a fish tank pump. It was near silent earlier and now its audible as soon as you walk into my office.

I do have a youtube video of the noise available if you "youtube.com/watch?v=xzAmhlYXQmA" .Excuse the darkness and I recorded it on my phone but you can hear it on this video. Even my partner asked my what the noise was!

I have come from a H60 which was pretty silent. I really want this cooler to be 100% functional, I love the functionality and styling of it. I have tried shaking the radiator but didn't work.

[ironmysox]

After reading through all the other posts regarding this type of problem, I have exhausted my options. I have reseated the pump, tried it in all directions, gently shaken the cooler and radiator, ran prime 95 to try and warm the liquid to possibly push air through, and have just installed it on the other rig in the house but the noise is still there. It doesn't fluctuate, it is constant. Like a fish tank pump. I have reinstalled my H60 on this rig and silence again but not from the cooler I want to use. What to do? Surely with a cooler like this it really should be out of the box, install, all works, wear smile?

[Support@ANTEC]

Hi ironmysox,

We are sorry that you have problems with KÜHLER H2O 920. If you had no success with shaking the pump as well as radiator to try to move the air trapped within, there must be some other problem with the pump. As a last resort, you may try to shake the pump as well as radiator while it is powered on, else we kindly ask you to consult the retailer where you purchased the product to initiate an exchange.

Again, we are very sorry for any inconvenience this caused for you.

Best regards,

ANTECsupport

[ironmysox]

Thanks for the reply :-)

I have RMA'd it back to retailer. I was wondering, I have a Silverstone RV02-W so the radiator is top mounted due to the unique motherboard positioning Silverstone have adopted with their cases (no other way to fix it). That shouldn't make any difference should it?

[Support@ANTEC]

Hi ironmysox,

You are welcome. To answer your question, it should not matter when the radiator of KÜHLER H2O 920 is mounted horizontally like in the Silverstone RV02. Let us know how it goes with your new cooler.

There are a few cases where air is trapped in the cooler causing a rattling noise. When we receive those as RMA, we shake them a bit in all directions and let them sit for a day checking them regularly. In almost all cases the noise disappears after a short while.

Best regards,

ANTECsupport

[sl4cr]

Hi ironmysox,

You are welcome. To answer your question, it should not matter when the radiator of KÜHLER H2O 920 is mounted horizontally like in the Silverstone RV02. Let us know how it goes with your new cooler.

There are a few cases where air is trapped in the cooler causing a rattling noise. When we receive those as RMA, we shake them a bit in all directions and let them sit for a day checking them regularly. In almost all cases the noise disappears after a short while.

Best regards,

ANTECsupport

Hello

I am also having this issue, clicking noise coming from the pump. I have cpu info enabled so you can see my specs there.

I purchased from Fry's a sealed NIBNBO Antec Kuhler 920 and just installed it about two hours ago from the time of writing this post. As soon as I powered the computer on the pump started clicking. I can hear it through the fans at full speed. It sounds like my fish tank did when I had it. Having researched this cooler before purchasing it I looked at the three or so youtube videos from other users with the same issue. Then I found this post. Anyway. Long story short...

How is shaking the damn thing going to untrap any air? It is a sealed system right? No way to bleed out air if there is no way for air to move outward. Anyway as silly as it sounded to me I went ahead and started shaking the thing after removing the rad and fans from where the unit mounts.

So far I hear the pump get louder then quiet down after shaking. The clicking that is. I even pulsed the pump by rapidly pluging and unpluging into the mainboard fan connector about 20 times. The temperatures are about 45-50c on high and about 57-60c on silent. I don't think that's really becoming of this cooler. And as of this posting I am still experiencing clicking just like the other users are.

I am going to leave it all running on high for another hour or so and do some more shaking and twisting of the liquid hoses. I truly hope this will fix the issue because it was a HASSLE to install this unit into an Antec VSK2000. It really doesn't fit. I had to ditch the upper cross brace to mount the radiator, remove the motherboard completely, and do some clever cable routing. Kind of a pain but I know - it really isn't intended for the VSK2000. Once it is mounted though, it does look neat and is secure enough not to worry about something breaking.

I am bummed that this seems to be a common issue. And when they are RMA your fix is to shake the unit? wat? really?

Can you comment on any actual failures? Is it possible to RMA directly to Antec and not to the retailer? Is this unit just a rebranded asetek? It really doesn't matter to me if I get a refurb, I just want to get a properly functioning unit for my 100 dollars. If not this thing is going back for a refund and I'll stick to air cooling until Antec can do better.

[Support@ANTEC]

Hello sl4cr,

We are sorry to hear that you are experiencing clicking sounds from your KÜHLER H2O 920. Let me try to answer your questions first:

How is shaking the damn thing going to untrap any air? It is a sealed system right? No way to bleed out air if there is no way for air to move outward.

Although KÜHLER H2O 620/920 are sealed, they are not filled completely with liquid. Therefore the possibility exists that air pockets form within the pump and cooling plate causing disturbing gargling noises just like you describe. If you look at a big water cooling setup, you can see a fluid reservoir that acts as a equalizing tank at the same time. In KÜHLER H2O 620/920 this is done within the radiator.

I am bummed that this seems to be a common issue. And when they are RMA your fix is to shake the unit? wat? really?

Well, this is from what we experience when the units come back, and we try to reproduce the issue in our lab. We turn the unit on and check for the noise. If there is a noise that is not within specifications (because the pumps do produce some noise when on, although quiet) that sounds like air being trapped in the pump we in fact shake the whole cooler to try to move that air pocket into the radiator where it does not produce any noise. We test those units for quite a while to make sure that they do not produce noise anymore.

Can you comment on any actual failures? Is it possible to RMA directly to Antec and not to the retailer? Is this unit just a rebranded asetek?

I cannot comment on any numbers, but can assure everyone that the failure rate of KÜHLER products is very low. If you prefer, you may do RMA with Antec directly, although it is highly recommended to do it through your retailer to save costs and time. KÜHLER H2O 620/920 is a collaboration product from Antec and Asetek, and not just a rebranded product from their range. This way we can develop products that can take advantage of more refined research information.

About the temps you are getting:

Can you please give us a few more details on how you mounted the radiator and fans? Which way they are pushing and pulling the air. This can also lead to the readings you get, which are in fact a bit too high. This can also be related to the cooler not sitting properly on the CPU. The combination of the noise and the temps may point to a defective unit after all.

If you are located in the US, I would like to ask you to contact our US technical support team directly to arrange an exchange. All details can be found on this page: http://www.antec.com/Believe_it/inde...support_custom

Please give us a chance to work with you on finding out what is going on with your KÜHLER H2O 920. We certainly want to make the experience right for you.

Best regards,

ANTECsupport

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[The Mr Fox]

Is their a fix for this yet, I live one hour away from where I purchased the 920, I'm onto my third unit, I have already returned two units?? first unit came with bent fins in the radiator, second unit wouldn't be recognized by USB, third unit makes the clicking sound.

The only time it stops making the clicking sound is when I lay the case down with the pump being the closest point to the ground. Antec is leaving a very sour taste in my mouth that I doubt will ever wash away. I shaken the radiator, I have shaken the pump.

Looks as though I will have to re-install the stock cooler so I can play funny buggers with your product....hardly a simple install procedure, not to mention the embarrassment of returning yet another unit to the store.

Either put some real research into a fix instead of offering to "shake" the damn thing because I'm telling you right now there is heaps of peeps having the same problems....

I'll be waiting for a reply and don't tell me to change it over AGAIN!, I don't know who would be more embarrassed me or the store.

[Support@ANTEC]

Dear The Mr Fox,

We are sorry to hear what has happened, but you are really unfortunate to have received three faulty units in a row. Kindly contact us directly through europe.rma@antec.com to have this issue resolved for you.

Best regards,

ANTECsupport

[gizmo642]

Is their a fix for this yet, I live one hour away from where I purchased the 920, I'm onto my third unit, I have already returned two units?? first unit came with bent fins in the radiator, second unit wouldn't be recognized by USB, third unit makes the clicking sound.

The only time it stops making the clicking sound is when I lay the case down with the pump being the closest point to the ground. Antec is leaving a very sour taste in my mouth that I doubt will ever wash away. I shaken the radiator, I have shaken the pump.

Looks as though I will have to re-install the stock cooler so I can play funny buggers with your product....hardly a simple install procedure, not to mention the embarrassment of returning yet another unit to the store.

Either put some real research into a fix instead of offering to "shake" the damn thing because I'm telling you right now there is heaps of peeps having the same problems....

I'll be waiting for a reply and don't tell me to change it over AGAIN!, I don't know who would be more embarrassed me or the store.

I have had a hellish time, first the pump click which drove me crazy; I took it off and shook the pump the radiator, then when I re attached the Khuler the CPU shut down due to overheating, I contacted my retailer here in the UK they have a returns policy of only 28 days,

Contacted Antec OMG, the same shake the pump etc., finally they said I could RMA it back to Antec in the Netherlands, ******* cheek, I live in the UK postage to another country (the Netherlands) was about 2/3 time as much, so no way my argument was I got it in the UK not in the Netherlands, finally after a week, I have got my retailer in the UK to take it back, for a replacement (after testing)

So I am now waiting on them to get back to me, won’t buy Antec again

[gizmo642]

Just heard word back from my supplier here in the UK (6 February 2012), they have sent it back to Antec for repair or replacement, so time will tell, I will get back to you when I get it back!

Still not happy

[gizmo642]

Here is part two of the Antec Kuhler920, just got the replacement today, it installed great, but got the CPU fan error message.

Just by chance my hand rubbed along the tubing to find a blue liquid just about to drip on my graphics card,

The tube that attached to the radiator is leaking, but only when the pump is running.

I am furious is there NO Fg quality control, never again will I buy Antec

[gizmo642]

Just had an email and RMA number back from the company i got it from, they have offered me a refund, but I won’t be buying Antec in the future , Antec have good produts if and when they work, but crap customer service.

[gizmo642]

Got a full refund form my supplier here in the UK, I bought a Corsair H100 it was on special from a well-known online retailer for £80.47 and I love it + it was £4.51 cheaper than the Antec 920 and comes with a 5 year warrantee.


Goodbye Antec Never again!

[carolzz]

Got a full refund form my supplier here in the UK, I bought a Corsair H100 it was on special from a well-known online retailer for £80.47 and I love it + it was £4.51 cheaper than the Antec 920 and comes with a 5 year warrantee.


Goodbye Antec Never again!

hi