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post #1551 of 20767
seems like suddenly these heat correlated pump shut off issues are coming out of the woodwork.
 
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post #1552 of 20767
Quote:
Originally Posted by BrotherJoseph View Post

Curious to what kind of conditions you test them under. My pump only seems to fail when the GPU or CPU are under heavy load, I am assuming it has to do with either the higher temperatures or RPM.
Last night I was running my card under load with a certain overclock for a quite sometime, leveling off at 60c. I then changed to my highest stable overclock, in about a minute the temperatures got to about 66c, then the pump failed, at 85% speed. It always runs again after cooling down.

I will test later if setting a fixed pump speed, as opposed to a temp curve, has any effect. I have been running the fans and pump on the same PWM, so I will also try having the pump on a low PWM setting and the fans just running off the splitter at 100%.

Ya this sounds alot like the issue I had. I tried many different connection combinations with the pwm splitter and my motherboard, but it ending up being the electronics in the pump that was bad.

I did not discover the issue with my pump either until I played a game that stressed both my gpu (using higher AA and supersample) and cpu causing the temperature to go over 65.

Just contact Swiftech, explain your problem and they will take care of you.
Edited by italstal - 4/15/13 at 4:24pm
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post #1553 of 20767
Quote:
Originally Posted by BrotherJoseph View Post

Curious to what kind of conditions you test them under. My pump only seems to fail when the GPU or CPU are under heavy load, I am assuming it has to do with either the higher temperatures or RPM.
Last night I was running my card under load with a certain overclock for a quite sometime, leveling off at 60c. I then changed to my highest stable overclock, in about a minute the temperatures got to about 66c, then the pump failed, at 85% speed. It always runs again after cooling down.

I will test later if setting a fixed pump speed, as opposed to a temp curve, has any effect. I have been running the fans and pump on the same PWM, so I will also try having the pump on a low PWM setting and the fans just running off the splitter at 100%.

Sent you a PM so that I can try and trouble shoot this from our end. Let me know if this would be possible for you.
post #1554 of 20767
Right now it seems the conditions for a pump failure is when it is running above 80% and my GPU is above 60c.
I can't get my CPU running Prime95 to cause it, seemingly because it doesn't go over 60c,
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post #1555 of 20767
Quote:
Originally Posted by gabe@swiftech View Post

Quick Update:

We received a few hundred kits last Friday (that shipped by Ocean from our factory over a month ago).

Just so you know, we are emptying every single one of these units, flushing and replacing the coolant to eliminate any contamination issues.

These units are next in line for shipping to MicroCenters and NewEgg next week.

G-

HI all, my H220 arrived here in Oz all the way from Finland and it is working great!! It is cooling on average a whole 10 degrees over the Intel water cooler that it has replaced. I am concerned however, that it might be one of the first batch. Is there any way to tell? and do I need to flush it out in view of the above?
post #1556 of 20767
I meant to add that I am using four Swiftech fans in push pull to achieve this in a Thermaltake Chaser Mk1 case with the H220 on top. The case is excellent for this kind of thing in my opinion.
post #1557 of 20767
Quote:
Originally Posted by ez12a View Post

seems like suddenly these heat correlated pump shut off issues are coming out of the woodwork.

I can't make sense of the temp notes. I put the H220 way up there in temps dialing fan speed to 800. I managed to throttle my 3930k in this test, then bumped fan speed to 890 which passed. Never noticed any pump stop related things happening, so not sure.

swiftech-h220-th-23.png

Never tried a gpu in the loop though. Almost bought an mcw82 to test on my old 570gtx but I don't have the $ to burn on an old gpu.

I figured my 3930 would have been enough to max out heat levels.

Wish I could have tested a CPU + GPU based loop for you guys, but no luck..sorry. Still running my 570gtx on air and don't want to spend $100 putting an old card under water just for testing purposes.
Edited by Martinm210 - 4/16/13 at 5:49am
    
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post #1558 of 20767
Quote:
Originally Posted by ez12a View Post

seems like suddenly these heat correlated pump shut off issues are coming out of the woodwork.
I think this issue isn't really related to heat, but rather to the pump speed that the mobo dictates as a result of reaching a certain cpu heat, so more likely something to do with the pump electronics at x speed.
post #1559 of 20767
the problem i had was very similar but still occurred when the pump was powered by the splitter with an entirely different PSU and not PWM controlled. it would shut off when the computer was booting windows and then it would try turning on every few seconds. After shutting the computer off, give it a few minutes and the pump will resume working. I'm not going to say that it's 100% heat related because I dismounted the pump while it was doing its power off/on thing and the cold plate wasnt hot at all. Strange. Could just be the PWM electronics maybe.

Either way Bryan has my old pump now and when he has the time will let me know what he finds. Service from Swiftech has been excellent in that regard. Gabe actually responded to my email after working hours the same day. New pump I received 2 days later is working perfectly.
 
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post #1560 of 20767
Quote:
Originally Posted by Sarah M View Post

HI all, my H220 arrived here in Oz all the way from Finland and it is working great!! It is cooling on average a whole 10 degrees over the Intel water cooler that it has replaced. I am concerned however, that it might be one of the first batch. Is there any way to tell? and do I need to flush it out in view of the above?

If it's working properly then you shouldn't need to flush it. I believe the ones that we sent to Europe were flushed before we shipped them anyway. If you have any concerns or need any assistance, just send me a PM. I'm on here a lot, even when I'm not working, so this site is a good place to reach me.
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