H100i V2 Malfunction

Cameron M

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Sep 22, 2014
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So, yesterday I had to ship my rig to my dorm to start college next week. Today I open the box up to see that my motherboard had shifted a solid 30 degrees from its proper up right position, as for some reason almost every singe standoff screw had come out of their sockets. I have no idea how this could have happened, as when I built it (about 2 weeks ago) I know for a fact that I screwed all of those in extremely tightly. I still have yet to fix that, as I'm going to have to go out and get my hands on a screw-driver tomorrow. Luckily,everything appeared to be working properly, as when I powered on my PC it did POST. However, ever since this happened, I've been having a problem that I can't wrap my head around. It seems that something either happened to to the board or to my H100i V2, as when I get past the BIOS screen, i now get a CPU fan speed error, I then enter the BIOS to see that my chip (6700k @ 4.6Ghz) is idling around 63-90C. Obviously this means that the cooler is now not working properly, or that the sensor in the motherboard got damaged. I've tried to seating the cooler's connection to the CPU_FAN socket with no luck, along with trying out a case fan to confirm that the CPU_FAN socket is indeed still supplying power. The even weirder thing is that I'm pretty sure that I can feel water moving through both tubes while it's powered on. But yet, I still can't get into the OS as my CPU is supposedly overheating. I honestly have no idea what to do from here. Any suggestions or help would be appreciated.
 

sirstinky

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Aug 17, 2012
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If you have a different cooler, like the stock Intel one (I always save them for this reason), try that. Obviously, there's an issue with the cooler, so if you put your hand on it when it's running, you should be able to hear it running. If not, and the CPU header has power to it, then your cooler got injured somehow during the move. If it's working fine, then your motherboard probably got damaged somehow. I've seen it happen where there's a problem with the CPU fan header and the PC won't boot. One of the things that damages boards like crazy is when the traces on the bottom get dinged. Even a tiny one can cause issues. Let me know if you tried all that and we'll go from there.

Thanks
 

Themastererr

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May 22, 2016
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My assumption would be the cooler needs be tightened properly. If you didn't tighten your motherboard down properly, chances are the cooler isn't tightened down either.

The general rule for computers is hand tight plus a 1/4-1/2 turn. Don't keep things loose.

The CPU_FAN for these coolers is nothing but an RPM sensor. it is irrelevant to the actual function of the cooler. Confirm that the fans are spinning. next boot.

You are receiving an immediate gain in temperature, which to me implies there is poor contact between the cooler and the CPU. Changing the thermal paste may also be in order.

 

Cameron M

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Sep 22, 2014
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Yeah that makes sense, the only problem is that I don't have another cooler on hand with me. I just moved into my dorm and am still getting things set up. So the only thing I could really try right now would be re-seating the water block on to the socket. I'm almost positive that the fan header has power, as I said before that I tested a Chassis fan with it and the fan came on like normal, therefore I would think it still has power. The other reason I'm thinking this is that when the computer's on, the Corsair logo lights up with everything else normally like it used to before the move. I just got my hands on a couple of screw drivers so I'm gonna tighten down the motherboard and re-seat the water block and see where that gets me. If that doesn't work, I'm assuming that I either need a new cooler or a new board. I guess the only way to figure out which one would be to get another cooler and try it out?

 

Cameron M

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Sep 22, 2014
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Welp, something really interesting just happened. I was actually able to boot into the OS and my temps seem to have recovered a drastic amount. I'm idling around 29-35C now, however, this is definitely still a bit warmer than what it had previously been idling at, so I'm know thinking that it has to be something to do with the cooler. Either the pump itself, or the connection between the IHS of the chip and the bottom of the block. I really don't understand this as I didn't touch anything and it just decided to cool off on its own. Any ideas?