nawellet Posted April 4, 2014 Share Posted April 4, 2014 I've had the H80i installed on for about 3.5 months now and everything has been great (idles in the low 20's and max temps are low 60's). I noticed within the last week that my idle temperatures seem to be about 10 degrees higher than normal and I now regularly get into the high 40's/low 50's just doing normal, non-stressful activities on the computer. So last night I decided to run AIDA 64 to see if the temps were increasing because my home is warmer now that winter is over or if there is an actual problem. In about 10 seconds the temps hit the 90's and the CPU began to throttle. Here is wat I have already looked at: 1. I've checked to make sure that the fans were running in push/pull and they were. 2. I thought that maybe the block somehow is not seated properly on the CPU (even though it had been working fine for several months). Usually my water temps never get higher than about 38C, but when I ran the stress test the temps got all the way up into the low 50's. Clearly the block is seated properly and trying to pull heat away from the CPU. 3. I've checked to ensure that the pump is still running and according to Corsair Link, AIDA 64, and the MSI Command Center it is still running (I even unplugged it, saw the RPM drop to zero, and replugged back in). 4. I've heard about the hoses possibly being at the wrong angle that causes poor circulation and I have tried to move them, but that does not seem to fix the issue either. At this point I am at a loss. Has anyone experienced anything like this before? Should I RMA the unit? Thanks in advance for your help! Link to comment Share on other sites More sharing options...
Latharion Posted April 5, 2014 Share Posted April 5, 2014 Have you tried removing the pump, and then reinstalling it with some new thermal compound? The thermal compound can break down over time, becoming hard, and thus less thermally conductive. Remember to clean the old compound off of both surfaces before a reinstall, and use fresh thermal compound (do not resuse the compound that was originally installed). Also, have you noticed any increase in CPU activity, even when it is supposed to be idle? If so, it could be malware, or it might even be a bad OS patch, or misbehaving driver (video drivers can do this sometimes, with ATI being rather notorious for it, but Nvidia has also been guilty of it). The observation that the idle temps will increase as we leave winter behind is correct. 38C is a little bit high, but not enough to be overly concerned. Is your CPU overclocked? If so, check the overclock settings, as it might be a bit aggressive (depending on chipset etc...) Users here in the forums can help more if you include a machine profile. Link to comment Share on other sites More sharing options...
nawellet Posted April 6, 2014 Author Share Posted April 6, 2014 Thanks for your input. I do have the CPU (4770K) overclocked at 4.2GHz, but my max voltage is set at 1.18v which is lower than the 1.2v that was set from the factory. I've only had the thermal compound on the CPU for 3.5 months so I doubt that it already needs to be replaced, and as I mentioned my water temperatures climb very quickly under load which seems to me that there is a good thermal interface between the CPU and the CPU cooler, but that water is not being circulated. I haven't really noticed any unusual spikes in frequency at idle. It generally runs in the 800-1000MHz range. I am planning on updating Windows and my drivers today to see if that helps at all. Link to comment Share on other sites More sharing options...
Latharion Posted April 7, 2014 Share Posted April 7, 2014 There are two easy ways to tell whether the pump is functioning or not. The first is to check the RPM readout from whatever software you prefer (like Asus Suite or Corsair Link, or even in the BIOS). If the RPM is not reading somewhere near 2200 RPM (give or take 10%), then it may need to be replaced via RMA. The second way to check is to feel the hoses. If there is a noticable difference in the temps between the two hoses, then there is something wrong with the circulation (could be pump, could be blockage). If this is the case, the solution is the same as the first. 4 months is defintely not enough time for the thermal compound to degrade. It usually takes a year or more of use for that to happen. I do know of a few instances where using a lower voltage resulted in higher temps for one reason or another, odd as it may seem. Still, if I remember correctly, the 4770k should handle 4.2GHz very easily. There are some others here in the forums that have first-hand experience with the 4770k who can help out far more accurately than I can (I'm using an i7 950 nahalem). Link to comment Share on other sites More sharing options...
nawellet Posted April 7, 2014 Author Share Posted April 7, 2014 Yeah, my pump is reading right around 2200 on Corsair Link and I can tell that one of the tubes is warm and the other is cool, so it appears that there is some circulation. It just seems that there is a partial blockage of some sort...normally if the CPU were stressed and the CPU cooler was not working at all it would nearly instantly throttle, but mine takes about 10-15 seconds for the CPU to get hot enough to throttle. Honestly this is just odd. I even tried flipping the radiator over, but that didn't work either. The last thing to try this weekend is to completely remove the radiator and re-install. If that doesn't work I will be getting in touch with Corsair. Link to comment Share on other sites More sharing options...
wytnyt Posted April 7, 2014 Share Posted April 7, 2014 I can tell that one of the tubes is warm and the other is cool. this is an indication of a circulation problem as both hoses should be close to the same temps,id have it replaced... Link to comment Share on other sites More sharing options...
Latharion Posted April 8, 2014 Share Posted April 8, 2014 this is an indication of a circulation problem as both hoses should be close to the same temps,id have it replaced... Maybe we should add that to our tag-line, wytnyt. It seems to be a common misconception. Link to comment Share on other sites More sharing options...
wytnyt Posted April 8, 2014 Share Posted April 8, 2014 :D: mine is about full but overdue for a change Link to comment Share on other sites More sharing options...
rock57 Posted April 8, 2014 Share Posted April 8, 2014 Hello, My apologies for getting me into this thread, but I am also experiencing a similar situation with my Hydro H80i, I have an CPU AMD FX 8320 with Asus Sabertooth 990FX with R2.0, in my new build. ********** Now my problem is that the included thermal paste came open and dry, I had to thoroughly clean and so to reapply new thermal paste that I found in my country VNZLA, I think is generic, and my temperatures are quite high running prime 95 for 15min, in windows 8.1 Pro * - In stock CPU frequency (3.5 to 4.0 GHz), CPU Core 38°C and CPU Socket 52°C - Overclock to 4.4 GHz and 1.380 vCore, CPU Core 58°C and CPU Socket 65°C ... ** I have also noticed that the hoses have different temperatures, one is cold and another is HOT, even if the corsair link says this in 2315 RMP PUMP, FAN1 in 2600 RMP and FAN2 in 2500RPM. What do you think??. is this normal?? Thanks Link to comment Share on other sites More sharing options...
Latharion Posted April 8, 2014 Share Posted April 8, 2014 Defintely RMA it. It is malfunctioning. One of the hoses is probably blocked or clogged in some way. Link to comment Share on other sites More sharing options...
rock57 Posted April 8, 2014 Share Posted April 8, 2014 Thanks !, I will do right now! Link to comment Share on other sites More sharing options...
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