Hi guys
Just built my brother's PC and am a little concerned by the CPU temps.
It's a Haswell 4670k i5 with a H100, sat inside a Fractal Arc Midi R2
It's running 2x140mm intake and 1x120mm exhaust (all Fractal's stock fans) plus the H100 as an exhaust. Airflow through the case is pretty good - not many cables in the way and I've taken out the HDD cage so there's only a smaller cage at the bottom of the rig.
Rest of the rig is pretty standard: HD7870, 8GB RAM, Gigabyte Z87-HD3.
After installing CoreTemp and leaving the machine mostly idling it was showing 26 to 40-ish, but I think one max was showing 50 degrees (I didn't take much note of it tbh, assuming it was a CPU spike while running updates or Catalyst installer etc)
Running Prime95 small with all fans on low (exhaust are running off the H100, intake off the built in 3-speed controller) and I got max temps of 83/85/82/72 before I chickened out and ramped up the fan speeds on both controllers. This is now giving me temps of about 81/83/78/70
I've got no experience with Haswell (or any Core chips, tbh), nor these H series watercoolers, but I have a hard time believing that 80 degrees is normal with a fairly high-end watercooling unit in a decent airflow case.
SO I suspect that either the cooler has a fault, or that I've not fitted it properly. Any opinions? What's the most likely mistake I've made? Will I get away with 80 degrees on Prime, or should I look to resolve it first, noting that this is without any GPU load in a gaming rig, which will raise internal temps.
What's my best course of action?
Just built my brother's PC and am a little concerned by the CPU temps.
It's a Haswell 4670k i5 with a H100, sat inside a Fractal Arc Midi R2
It's running 2x140mm intake and 1x120mm exhaust (all Fractal's stock fans) plus the H100 as an exhaust. Airflow through the case is pretty good - not many cables in the way and I've taken out the HDD cage so there's only a smaller cage at the bottom of the rig.
Rest of the rig is pretty standard: HD7870, 8GB RAM, Gigabyte Z87-HD3.
After installing CoreTemp and leaving the machine mostly idling it was showing 26 to 40-ish, but I think one max was showing 50 degrees (I didn't take much note of it tbh, assuming it was a CPU spike while running updates or Catalyst installer etc)
Running Prime95 small with all fans on low (exhaust are running off the H100, intake off the built in 3-speed controller) and I got max temps of 83/85/82/72 before I chickened out and ramped up the fan speeds on both controllers. This is now giving me temps of about 81/83/78/70
I've got no experience with Haswell (or any Core chips, tbh), nor these H series watercoolers, but I have a hard time believing that 80 degrees is normal with a fairly high-end watercooling unit in a decent airflow case.
SO I suspect that either the cooler has a fault, or that I've not fitted it properly. Any opinions? What's the most likely mistake I've made? Will I get away with 80 degrees on Prime, or should I look to resolve it first, noting that this is without any GPU load in a gaming rig, which will raise internal temps.
What's my best course of action?
I must've just derped out on installing it, I think I tightened the screws individually which left it wonky - this time I did them all a little in the order suggested until they stopped being "easy" to turn, then tightened them again in the same order to full tightness.