Issue with Water Cooling/CPU Temp/Help Needed!

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Ryan_331

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Jun 3, 2017
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Hi!
So I just purchased a new computer, which is an iBuyPower. I previously built my computer, but had so many issues that I just wanted to try a manufacture built computer. This computer is water cooled (which I will soon get into later), and has an i7 7700k, GTX 1080, 16GB DDR4 RAM, and a bunch more but what really just worried me was I checked my CPU temp because my case felt pretty hot while playing Battlegrounds, and the temp was 158 degrees... My previous computer would never hit this high, I'm new to water cooling so I have no clue about it. When I first turned the computer on for the first boot I heard the water in it, but now I don't at all. Honestly don't know if this matters or not, but when I first booted it the water was moving around, and I turned the PC off because I just wanted to make sure my LED's I installed were working. Not sure if this made the water cooling defective or not, (like I said I'm quite new to water cooling). But for a game and a few things running in the background, I really don't think it should be running at 158 degrees... So my question is, is my water cooling defective? Is this normal? Are you supposed to hear water cooling? Thanks so much!
 
Solution
Supahos
Assuming that was 158F° that's perfectly fine. If it was 158C°(which is what it should give you) then wed know because you'd have the post say "prebuilt of won't turn on" (because your CPU melted) or "my house caught fire from my CPU
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Supahos

Supahos

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Assuming that was 158F° that's perfectly fine. If it was 158C°(which is what it should give you) then wed know because you'd have the post say "prebuilt of won't turn on" (because your CPU melted) or "my house caught fire from my CPU
 
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Ryan_331

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Jun 3, 2017
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Haha! No I put it in 158F. Will my water cooling make noises at all? Because I hear it making no noises at all. (Hoping thats a good thing)
 
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Kenny_53

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Jun 4, 2017
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just curious are you overclocked if so what is your voltage? I too have this CPU on an open loop system and see temps close to what you are getting at 5ghz 3.5v. Oh and to answer your question about noise...no it should be nearly silent (should not hear water trickling sounds) at most you should hear a slight hum from your pump.
 
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posology

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Mar 18, 2017
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7700K is a really hot chip... I have one in mine overclocked to 4.9 @ 2.9V and it runs in the mid 70's (CELSIUS) on an H115i. I assume that temp is in Fahrenheit which is around 70 Celsius. You should be fine as long as you stay under 80 Celsius.
 
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Ryan_331

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Jun 3, 2017
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Thank you for your reply. I have mine at 4.2 (not too sure the voltage) and it runs about 180 Fahrenheit. Not sure if my water cooling is even working at all. When I had to first boot I heard the water, and now I never hear it and when I feel the tube I really don't feel anything but extremely high temps. Is this normal? Thanks again

 
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posology

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I'm not particularly familiar with iBuyPower, but if it comes with any sort of warranty from them then I would recommend contacting them. As far as fixing your problem if there is no way to get iBuyPower to, then I have a few suggestions. If you do not have the i7 overclocked, then overclock it. I know this sounds crazy, but if I were you then I would watch some guides. The stock configuration is notorious for running high voltages on low frequencies. If you can even overclock to 4.5 GHz, which is extremely easy on this generation, and keep the VOLTAGE LOW, then your temps will go down. I would suggest setting it to 4.5 GHz and 1.265V, which would be easily obtainable. I know what you're thinking... Yes, overclocking will bring your temperatures down as long as you keep the volts low. Stay under 1.3V or your temperatures will soar. Here is a guide that will help familiarize you with how to overclock. https://youtu.be/FjIweExETlI
 
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posology

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For life of chip etc. you want to keep it under 80C. That's more or less where intel says it will break. The lower your temps the longer the lifespan...
 
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Ecky

Ecky

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Please provide a citation where Intel says to keep it under 80c. From what I've seen, the published Tjunction for all desktop CPUs is 100c, which is where Intel has chosen to throttle them. Many laptop CPUs (which are physically identical to their desktop counterparts) happily run at 85-95c without issue, and nearly always outlast the rest of the computer.

EDIT: I'm not saying lower temperatures don't increase the effective lifespan of a CPU, but it's largely an academic matter because with these CPUs, the MTBF is measured in decades even as you near 100c.
 
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posology

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Provide a citation that says 100C is good for it. It's typically agreed in the PC community that anything over 80C is extremely hot and not necessarily safe. As Intel explains on its website, 100C is not necessarily a safe temperature, just the temperature at which the CPU can no longer operate past.
 
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Ecky

Ecky

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The burden of proof is on those making a claim. I'm questioning the veracity of your claim, and would like to know if you have any data to support your claim that the OP should be worried about 80c.

After work I'll dig through some Intel whitepapers and see what citations I can come up with to support the negation of your claim, but I shouldn't have to unless you have data to back it up. Certainly it's better safe, but again, I'd like to see some data, even some anecdotal reports from people whose CPUs have died a temperature-related death while below Tjunction at stock speeds. Thus far, I've seen exactly none in the 20+ years I've been working in computers. CPUs have probably the lowest failure rate of any component, to the point that major OEMs such as Dell and HP don't even have their technicians test them when troubleshooting system failure.

For what it's worth, it's normal for datacenters to allow their CPUs to run close to (though a bit below) Tjunction, at 100% load, for years, and these are cases where reliability is critical. It's also normal for OEMs to design laptop cooling systems to allow CPUs to run very close to Tjunction under heavy loads. OP has also suggested they are not running at these temperatures 24/7.
 
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Ryan_331

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Will try that as soon as I get on my computer. What will run faster particularly when I overclock? Just incase because I had assumed the computers water cooling wasn't working, I ordered a replacement which comes tomorrow. Still will attempt to overclock the machine see if anything changes. Thanks again
 
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Ecky

Ecky

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Anything CPU-limited will run faster. With a 5% overclock, a task that previously took 20 seconds may complete much as 1 second sooner, though usually scaling isn't perfect.

Given your temps, it's a safe bet that your cooler is working fine, because your temps are in line with what most others who own these CPUs are seeing. A replacement cooler is unlikely to change anything.
 
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Ryan_331

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Other reason I ordered a replacement was because my gpu slightly shakes causing the computer to vibrate essentially so when it's on my desk, I feel the vibration in my arm. Not sure the exact issue.
 
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posology

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Along with what Ecky has mentioned, the 4.5 GHz isn't necessarily a true overclock since the 7700K turboboosts to 4.5 on one core automatically. The most important thing is you control the voltage since your setup typically won't have issues running games. Just make sure the voltage is set as low as possible.
 
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