Insane CPU Temps with corsair h100i gtx water cooler (intel i7 6700k)

[scott]

Hello, I completed my computer build yesterday and noticed that the AI Suite 3 by Asus was telling me my idle temp for my cpu was around 23-25ish, pretty good. I played DayZ and CS:GO and noticed they got a little hotter when idle but nothing to worry about. It was during an Arma 3 session that my fans really kicked in and got so loud I could hear them over my logitech g430's and I knew that something was bad. I alt tabbed and checked corsair link (whenever you alt tab your temps and loads have started going down so it's not completeley accurate, but) arma 3 had my CPU's hottest core at something like 83 degrees celsius, so I immediately turned off arma 3 and went to my home, where my idle temp sat at 52 for a good 20 mins. They went down to 31 after a while, and now this morning they're in the 20's, but I think i've pinpointed the problem.

-I've ruled out that the CPU Cooler isn't properly seated, I tested it by wiggling it a little to see if it's snug, which it is.
-I've determined the thermal paste is fine, I just used the pre-applied stuff on my corsair h100igtx
The only thing I feel is causing it to get so hot is my fan setup. I have 1 240MM in the bottom front that is my only intake, and the rad with 2 noctua fans and my rear noctua fan are all acting as exhaust. I was wondering if it's because instead of cooling up the water in the tubes by blowing on it, i'm doing the exact opposite and drawing heat over my cpu when it's leaving the case.

I'm planning on switching the fans around today so that they blow IN The case rather than out, and if anyone could give me some input, that'd be great.


(also on a sidenote, IDK why, but when corsair link says my GPU fans are spinning at 0rpm, it takes a while for the FAN STOP led to light up on my Gigabye g1 1070. Okay thanks!)

[Birdy.J]

That is your problem too many exhaust. Another thing placing a fan at the bottom as intake sounds interesting. Cool air should be drawn from outside of case not within the case. In this case you are warming your radiator not cooling it.

[_I_]

the gpu fan will stop when its cool and at idle state
thats what the fan stop light is for, to let you know it stopped the fan

for case fan directions, top rear are exhaust, front bottom are intake
on the fans the open side is intake, back with sticker and wire is exhaust, most have direction and flow arrows

[Hare+Guu!]

You sure the pump isn't broken?

[scott]

Hare+Guu! の投稿を引用：

You sure the pump isn't broken?

idk how to tell.

When I first booted this PC the other day it made a chugging sound like water going through but that was the only time. I've repeatedly restarted/turned off the PC between now and then and that was the only time I heard anything audial of the pump itself.

[scott]

_I_ の投稿を引用：

the gpu fan will stop when its cool and at idle state
thats what the fan stop light is for, to let you know it stopped the fan

for case fan directions, top rear are exhaust, front bottom are intake
on the fans the open side is intake, back with sticker and wire is exhaust, most have direction and flow arrows

I may put the sp120 fans that came with the rad on the bottom as intakes, but in that case, would it be good to have the 240mm front as an intake, the bottom two as intake, the rad as intake, and then the 1 120mm as outtake?

[scott]

So as the first commenter said, I am heating up the rad instead of cooling it down, should I notice a temp difference if I swap the fans around so that the rad which is at the top of my case is blowing down into the case and onto the liquid tubes (2 noctua 120mm fans) along with the stock fan that's in the front of the case blowing in, and 1 noctua fan in the back as exhaust?

[joetheplumber68]

Radiator at top with fans in either push or pull as exhaust. Front for intake. Bottom for intake. Top rear for exhaust. Go to Corsair Link in quick launch tray and select "Performance". You can see the pump and pump fan RPM in same quick launch tray to monitor. Also make sure you have the fans connected to proper header such as CPU FAN, CPU PUMP, OPT CPU FAN and so forth. I have same CPU overclocked to 4.9 and Corsair Hi100v2 and never see temps past low 40's c. Also as mentioned above, be sure your fans are pushing or pulling air in the right direction. It's easy to install the fans backwards. I've done it a few times.

[scott]

joetheplumber68 の投稿を引用：

Radiator at top with fans in either push or pull as exhaust. Front for intake. Bottom for intake. Top rear for exhaust. Go to Corsair Link in quick launch tray and select "Performance". You can see the pump and pump fan RPM in same quick launch tray to monitor. Also make sure you have the fans connected to proper header such as CPU FAN, CPU PUMP, OPT CPU FAN and so forth. I have same CPU overclocked to 4.9 and Corsair Hi100v2 and never see temps past low 40's c. Also as mentioned above, be sure your fans are pushing or pulling air in the right direction. It's easy to install the fans backwards. I've done it a few times.

so I should have my radiator pulling air out of the case rather than blowing in on the water tubes to cool it down? That's what I have it doing right now and it doesn't make sense as it's carrying the hot air over the cpu/waterblock

[Bad 💀 Motha]

If something is at the top of case, then you want whatever fans are there, blow towards the top, blowing hot air out.

Get rid of that slow 240mm fan and install multiple 120 or 140 mm fans instead.

Don't regulate Fan Speed in your BIOS, let them run at full speed. Otherwise use a Fan Controller.

Monitor your Pump by plugging that into CPU_FAN or CPU_FAN_1
Again that should run at full speed.

The thermal paste Corsair pre-applied to the pump should be fine. If temps are not staying low then most likely the fans are too low of an RPM, your lacking airflow, or the pump is not fully mounted properly.

[scott]

i'm just so confused, the Corsair manual that came with it says that for it to be optimal, it should be an intake, and quite a few people on Tom's hardware are saying the same thing, but here on steam and also on tom's hardware there are also people saying it should be blowing hot air out from the top.

I don't know much about liquid cpu cooling, but from what I understand from previous research, it makes more sense to blow cool air over the tubes/waterblock that way the water emits a coolness, and then have your back fans expell it.

Another thing I noticed is that for some strange reason 2 cores of mine are sitting around 17-25 C whereas two are bouncing between 17-40 on idle.

[scott]

I'm a first time builder, so i'm still learning all of this

[Bad 💀 Motha]

The liquid heats up regardless of which way you do your Rad install. But the liquid is also always moving throughout the pump + rad, so it's being cooled and moved around constantly.

In the front of the Case can be best, but most Cases do not allow for that.
If yours does, then yes try that, but then you would want fans installed on both sides of the Rad, all pushing cool air towards inside of the case.

But then you will still want fans at the top, blowing hot air out.

Remember, hot air rises naturally, so it is best to always use the Rear/Top as your exhaust points.

You don't want air blow down from the top, that is what makes no sense.

[scott]

Bad-Motha の投稿を引用：

If something is at the top of case, then you want whatever fans are there, blow towards the top, blowing hot air out.

Get rid of that slow 240mm fan and install multiple 120 or 140 mm fans instead.

Don't regulate Fan Speed in your BIOS, let them run at full speed. Otherwise use a Fan Controller.

Monitor your Pump by plugging that into CPU_FAN or CPU_FAN_1
Again that should run at full speed.

The thermal paste Corsair pre-applied to the pump should be fine. If temps are not staying low then most likely the fans are too low of an RPM, your lacking airflow, or the pump is not fully mounted properly.

So how can I test to see if the pump is installed correctly? I noticed 2 cores are bouncing between absurd temps on idle

[Bad 💀 Motha]

What are you getting for all cores when idle -vs- high/full loads?

[scott]

Bad-Motha の投稿を引用：

What are you getting for all cores when idle -vs- high/full loads?

For idle core 2-3 are usually in the 20's whereas core 1 and core 4 bounce into the 40's. Right now i'm doing homework and doing this stuff on steam and i'm bouncing between 15-30% load and the temps are the same. What i mean is right now at 17% load my core temps are the same as when it bounces up to 30, but then it comes back down.

I use corsair link which requires me to alt tab, so it's not entirely accurate because it immediately starts lowering all of the numbers but typically when i'm playing Arma 3, it was saying something like 25-30% load and the temps were in the 70-80 c range. I also heard my fans kick into overdrive over my headset which is what made me check my temps and turn off arma.