h100i v2 with i7 7700k

[dude85720]

hey im new to this forum so forgive me if i set this out incorrectly.

 

i have recently have been having an issue with my h100i v2 water cooler, it is mounted at the top of my computer as an exhaust and i am worried their may be something wrong with the pump or a blockage in a tube.

 

i will start my pc and the h100i v2 temperature will be at around 24 degrees (room temperature here) but then shortly after the coolant will rise to around 36 degrees and stays around this area at idle and then under full load my h100i v2 temp steadily rises and even off at around 40 degrees. while under full load my temps go straight to 70c and then even of at around 79 (on the base clock of 4.2 ghz).

 

Also the cooler is blowing out cool air and one of the tubes is very hot while the other very cool also the radiator feels cool apart from around the area of the connnection to the hot tube.

 

if i am missing any information that is needed for this post let me know!

 

cheers

[DevBiker]

While I was reading this, at first it sounded like an airflow issue.

 

But the cool air and uneven tube temperature doesn't sound like an airflow issue.

 

So let's make sure we exclude that - swap your fans so that the fans are on intake. Even better, take off the side of the case. Do you see the same behavior?

[dude85720]

i tried repositioning the fans and also gave everything a good clean with compressed air which yielded the same results also taking the side panel off made no difference. :/

[c-attack]

Contact Corsair Tech Support through the ticket system in the menu bar above. Blowing cold air and the one hot/one cold tube normally suggests a blockage or pump issue. Your's isn't so bad yet the PC has become unusable. These things typically get worse with time, so you do want to proceed toward a replacement RMA.

[dude85720]

i was hoping it wouldnt be a problem with the cooler itself and it was something i was doing wrong as the cooler is nearly a year old now and im without the original box/ receipt, guess im fresh out of luck.

[c-attack]

Not sure about needing the box. Any way you can get an electronic copy of the receipt? Online purchase?

[dude85720]

It was purchased as a gift for me on Amazon i would be able to find the receipt but can I rma it under my name or would I need the person who originally bought me it to start the returns process for me?

 

And is there anyway to confirm that the cooler has malfunctioned before I go through the hassle, im fairly certain it has (as it is working about as well as a stock cooler) but I want to be absolutely sure !!

[dude85720]

I have the fans set to a high setting depending on coolant temperature and the pump on petformance, I also have an i7 7700k and when I use a CPU stress test (cpu-z) the coolant temperature steadily rises to around 45 degrees and then levels off there my room temperature is just under 24 so is thag definitely a problem with the cooler? Also everything in my bios is default apart from qfan off and the clock speed of my i7 set to 4.2ghz so that it cannot turbo to 4.5 as when it boosted to 4.5 it would steadily raise all the way to 50 degrees I nthe coolant and my CPU package temps were at like 88.

[c-attack]

Most people with a 95W TDP CPU like a 7700 or 8700 will see idle coolant temperatures about +4-7C above their room temp. This is largely determined by interior case temperature (case design/airflow/layout) and additionally by CPU and OS power settings. Running a fixed voltage with no power saving features is going to be higher than someone running standard adaptive voltage and basic Speedstep/Auto C-states. Mine was on all night doing a huge back up job and as my coolant is still only +2.5C over room temperature.

 

Load results are actually more even. In a 100% load CPU test, you are likely to see the coolant rise another +5-7C in the first 10-15 minutes. After that increases are usually the result of an increase in case temperature at a very slow rate. So in a 24C room, you would normally be expecting a worst case scenario of 31C starting coolant temp and 37/38C load temp for CPU load only. Once you start heating the case with GPU load, all the equations change. This is why Dev asked to swap the fans and open the door, to rule out this part.

 

Unfortunately, the tube temp differential is concerning (should only be about 2C difference - undetectable) and especially the blowing cold air are clear indicators you have a decent size blockage. At 45-50C coolant temperature, the exit exhaust air should also be 45-50C. That is pretty unmistakable when you stick your hand in front of it. Also, the problem you are reporting appears to be the most common failing on your unit.

 

I don't know how needling they will be about the invoice name and RMA process, but you should try. You may also want to formulate a back up plan in the case is does not go forward. You might be able to stretch out more time on the current one, but it is going to get worse. The only possibly remedy I can suggest is to tilt the case back and forth (gently) and more likely take the cooler off and shake it. You are trying to dislodge the blockage. However, two important things. First, no guarantee this works and it is extremely unscientific. Second, whatever is causing the issue will still be in the loop. What goes around comes around again another day, but it might buy you a little more time.