I7 8700k High temps with water cooling

[Aowek955]

I just bought the i7 8700k i installed the corsair h100i v2 
I am seeing very high temps on Prime 95 

The cores go up to 94 C which is absurd with the cooling 

Also on idle it sits around 34-35C 
I tried mass effect andromeda for 10 mins it went up to 55-57C

I didnt overclock or anything what do you think ? maybe the heatsing is not placed well on the cpu i dont know i tried doing it couple of times 
 

[RollTime]

Just checking, you do have thermal paste right? If you tried to adjust the heatsink a few times it may have messed up your thermal paste. 

 

If that's not the issue, I'm not really sure. Can you send a few pictures?

[xg32]

what's ur build and voltages, if you have MCE enabled those look normal.

[Aowek955]

 

46 minutes ago, RollTime said:

Just checking, you do have thermal paste right? If you tried to adjust the heatsink a few times it may have messed up your thermal paste. 

 

If that's not the issue, I'm not really sure. Can you send a few pictures?

After 2 mins in Prime 95 

[Aowek955]

4 minutes ago, xg32 said:

what's ur build and voltages, if you have MCE enabled those look normal.

What is mce ? i didnt touch anyting just installed it 

[xg32]

ya 1.36v on the cpu with spikes can get u above 1.4, 1.4 on a 8700k doing prime will get u 90C, what u need to do is enter a manual value or 1.35 or below on the voltage.

[Aowek955]

How can i do that and will it affect clock speeds? 

[RollTime]

37 minutes ago, Aowek955 said:

After 2 mins in Prime 95 

Wow, that is quite high. I meant pictures of the heatsink and motherboard themselves, though. 

Is the pump and fans for the AIO plugged in? 

Have you checked the thermal paste?

[Aowek955]

Just now, RollTime said:

Wow, that is quite high. I meant pictures of the heatsink and motherboard themselves, though. 

Is the pump and fans for the AIO plugged in? 

Have you checked the thermal paste?

Yes i just bought artic silver 5 reinstalled 3 times tried 2 different corsair h100i idk whats going on really 

[RollTime]

35 minutes ago, RollTime said:

Wow, that is quite high. I meant pictures of the heatsink and motherboard themselves, though. 

Is the pump and fans for the AIO plugged in? 

Have you checked the thermal paste?

 

37 minutes ago, Aowek955 said:

After 2 mins in Prime 95 

Oof, just saw the readout for the cooler, my bad. 

[Aowek955]

1 minute ago, RollTime said:

Wow, that is quite high. I meant pictures of the heatsink and motherboard themselves, though. 

Is the pump and fans for the AIO plugged in? 

Have you checked the thermal paste?

I plugeed in the 3 pin aio on the motherboard 4 pin 

[xg32]

33 minutes ago, Aowek955 said:

How can i do that and will it affect clock speeds? 

also i'd stop running prime right now, there's something that's running at 127C in ur system, im guessing the voltages are very messed up by default. you are gonna have to google a step by step guide on ur bios to lower the voltages. it you just touch the voltages it will not affect clock speed, im trying to find out what's a safe voltage for stock clocks, but im guessing ur 2ndary voltages are also set to 1.35 instead of 1.15 or 1.2 (vccio/vccsa), and MCE is definitely on, find something called Asus multiple core enhancement and disable that.

 

so ya, just to make this short:

 

1. find something called Asus multiple core enhancement and disable that.

 

2. stop running prime unless u wanna fry ur motherboard

 

3. find the primary cpu voltage setting (vcore) and set it to 1.3v

 

ill be here, just lmk.

[Aowek955]

4 minutes ago, xg32 said:

so ya, just to make this short:

 

1. find something called Asus multiple core enhancement and disable that.

 

2. stop running prime unless u wanna fry ur motherboard

 

3. find the primary cpu voltage setting (vcore) and set it to 1.3v

 

ill be here, just lmk.

I disabled the mce but still i am seeing huge spikes from 55-28 c sometimes 

[mrmonmon2]

Oh set the graph time to 10 seconds, at 5 seconds i watched my h115i cooling my cpu as it shot from 20 to 70 and it was driving me insane, at the larger polling time it's more normal 

 

That will at least fix it showing you massive spikes, the high temps though rip

[xg32]

53 minutes ago, Aowek955 said:

I disabled the mce but still i am seeing huge spikes from 55-28 c sometimes 

i'm pretty sure your stock voltages are all sorts of messed up, u should google what manual voltages others set on the prime-a.

[CrippledROBOT]

2 hours ago, Aowek955 said:

I just bought the i7 8700k i installed the corsair h100i v2 
I am seeing very high temps on Prime 95 

The cores go up to 94 C which is absurd with the cooling 

Also on idle it sits around 34-35C 
I tried mass effect andromeda for 10 mins it went up to 55-57C

I didnt overclock or anything what do you think ? maybe the heatsing is not placed well on the cpu i dont know i tried doing it couple of times 
 

First, Prime95 isn't really used anymore as it puts an unrealistic punishing load on the CPU (more than other torture tests). Try Aida64 or Intel's torture test for more accurate indicators. Secondly, 35c at idle and 50-60c under gaming load are completely normal (and considered ideal) temperatures under load. As for the 94c Prime95 temperature: you may have Multi-Core Enhancement activated and automatic voltages set (many boards have it set that way at default). This means that you're using MUCH higher voltages than needed. See what the vcore is at those levels via HWMonitor

 

For example, my Asus board put my i5 8600k (when at STOCK settings) to 1.3v at a measly 4.3ghz MCE all core boost which is absurd. After some quick manual tuning, I hit 1.16v at 4.5ghz! MUCH improved temps!

 

NOTE: 80-85c max load under stress testing is acceptable (or even many hours of gaming). https://www.pugetsystems.com/labs/articles/Impact-of-Temperature-on-Intel-CPU-Performance-606/

[For Science!]

5 hours ago, Aowek955 said:

I disabled the mce but still i am seeing huge spikes from 55-28 c sometimes 

your temperatures are completely normal for a non delidded 8700k. I've used the latest Realbench as an system stress test with the h100i v2 and would conclude your temperatures are completely within expected realms. I assumed you also picked up the latest prime95 and so hammering the system with AVX2 instructions with no negative multiplier offset.

 

You can use Realbench 2.56 (latest version, I think) and report the temperatures and compare with the numbers in Ncase M1 build which should be comparable (default bios settings with MCE enabled)

[Aowek955]

17 hours ago, CrippledROBOT said:

First, Prime95 isn't really used anymore as it puts an unrealistic punishing load on the CPU (more than other torture tests). Try Aida64 or Intel's torture test for more accurate indicators. Secondly, 35c at idle and 50-60c under gaming load are completely normal (and considered ideal) temperatures under load. As for the 94c Prime95 temperature: you may have Multi-Core Enhancement activated and automatic voltages set (many boards have it set that way at default). This means that you're using MUCH higher voltages than needed. See what the vcore is at those levels via HWMonitor

 

For example, my Asus board put my i5 8600k (when at STOCK settings) to 1.3v at a measly 4.3ghz MCE all core boost which is absurd. After some quick manual tuning, I hit 1.16v at 4.5ghz! MUCH improved temps!

 

NOTE: 80-85c max load under stress testing is acceptable (or even many hours of gaming). https://www.pugetsystems.com/labs/articles/Impact-of-Temperature-on-Intel-CPU-Performance-606/

Can you provide me with more instructions how to do that coz i ve never done it actually i dont have any knowledge in that 

[Princess Luna]

And that's why I went with the i7 8700... enough of these temps due to Intel's toothpaste... I am not delidding, rather lose 400mhz on the coreclock for no overclocking that changes nothing outside 1080p due to GPU bound and have a cool chip.

 

Seriously the i7 8700 is a stock i7 8700k that can't overclock true enough but you also get to be only 65w TDP, worth it.

[CrippledROBOT]

1 hour ago, Aowek955 said:

Can you provide me with more instructions how to do that coz i ve never done it actually i dont have any knowledge in that 

No worries!! Do you mean you need instructions with how to set up the stress-testing software or with the overclocking stuff? 

 

For overclocking... This is what I did with my chip and found it gave me the best balance of temperature, voltage on the chip, and performance. Your experience may differ.

 

 

First: Go to the BIOS. Find the setting that says Multi-core Enhancement. If its a little tricky to find, Google your motherboard model or look through the manual that came with it and try and find it. Make sure to turn this OFF/disable it. Next, you should be able to change your CPU core ratio. I'd start at a mild overclock to 4.5ghz. Manually go to each core and change the speed to 4.5ghz (don't select the feature called "ALL CORES" because this seems to force all cores to run at this speed, regardless of load). After each core has been individually set to 4.5ghz, go to Vcore settings and set it to MANUAL. Set the vcore to 1.12v. The next part is important for stability. Go to something called Load Line Calibration (if you can't find it, look on Google or your motherboard manual). Set that to auto. This will ensure that this voltage can fluctuate a bit as to save some electricity and ideally keep the CPU alive for longer (as voltage generally kills CPUs before heat or other factors). NOW, you can save all settings and boot into Windows. Run Aida64 with nothing running in the background other than HWmonitor for 10-15 minutes and if you're below 80-75c after 15 minutes, you're on the right track (also assuming no crashes/blue screens). If you pass this test, fire up a game like Cities Skylines, Battlefield 1, Crysis 1-3, etc (anything that'll put real stress on the system). Play for an hour or 2 and see how it works. If temps are acceptable and you didn't blue screen, you're good to go!

 

 

IF you blue screen:

 

DO NOT PANIC. Simply allow the system to reboot and immediately enter the BIOS. Bring the voltage up a little bit (say to like 1.15 or something). Ideally the lower the better, but do what you can! 

 

In general, avoid surpassing 1.35v. Not only can temperatures get out of hand, but you can reduce your CPU's life expectancy.

 

 

I hope that helps! Keep us posted!!!!