Dangerous CPU Temps

[Chazza]

HI and firstly thanks for taking the time to read this.

 

i built my PC about 3 years ago and its been running 'fine' until about 3 months ago.

 

firstly the specs ( in no particular order )

HyperX Savage 32GB Kit (4x8GB) - DDR4 3000MHz Intel XMP CL15 DIMM Memory

EVGA SuperNOVA 850W G2 Fully Modular Power Supply

ASRock Fatal1ty Z170 Gaming K6+ Socket 1151 DVI-D HDMI DisplayPort 7.1 CH HD Audio ATX Motherboard

Corsair Hydro Series H100i v2 Extreme Performance Liquid CPU Cooler

Intel Core i7-6700K 4GHz Socket 1151 8MB L3 Cache Retail Boxed Processor

MSI GTX 1080 GAMING X 8GB GDDRX Graphics Card

120gb kingston SSD

2 x 3Tb Seagate barracuda HDD

 

2 front fans pushing air in, 2 top fans pushing air through radiator into case, 1 rear fan pulling air out

 

i have a thermometer inside the case to check ambient air temps and they are about 22-32'c depending on the weather and under load when the 1080 gets used.

 

THE STORY

my cpu started spiking after i moved my pc to another house and i relised after short time running cpu temps straight from boot where too high.

removing heat sink and checking radiator i heard a bubbling and presumed i just had a air lock.

 

reapplying ( with the same paste IM SORRY but i diddnt have any spare to hand ) temps where back to normal-ish and thought nothing more of it.

 

several months later my cpu temps start getting higher and higher, now im back to the same problem..

 

i decided to re apply the thermal paste, i beleive i did a decent job cleaning and re applying, this worked fine for about a month temps at resting 40'c and under load maxing out at 80'c

 

suddenly im back to 60-70+'c on desktop and over 100'c under load

 

im thinking of re applying thermal paste but wanted some other thoughts before i do

 

i dont have another radiator/cooler to check if it has a problem

 

this is temps with no load

[GeminiJ13]

Check your dust filters to make sure you are getting proper airflow.  If this is an AIO, the water sealed in it could be evaporating and causing air bubbles to accumulate in the pump; so, no waterflow.  Make sure that your rad is higher than the pump to prevent air pockets from sticking to the pump.  The rad should be above the pump or the hoses if mounted vertically should be on the bottom of the rad.

[Chazza]

59 minutes ago, GeminiJ13 said:

Check your dust filters to make sure you are getting proper airflow.  If this is an AIO, the water sealed in it could be evaporating and causing air bubbles to accumulate in the pump; so, no waterflow.  Make sure that your rad is higher than the pump to prevent air pockets from sticking to the pump.  The rad should be above the pump or the hoses if mounted vertically should be on the bottom of the rad.

thermometer is just ambient case temps

[Chazza]

Resting temps are better but still not brilliant and Ive seen them better. any further thoughts?....

 

side note. when i turned pc after re applying thermal paste a few mins ago, i did have a air lock or something that stopped my pump from spinning and after a qick panic of slowly tilting my case about the pup registered speeds again

[GeminiJ13]

Well, this is an ideal orientation for the rad.  If you are sure that you applied the thermal paste correctly and torqued down the pump onto the CPU with even force, then I have to defer to the water/glycol starting to evaporate out of the AIO.  There also might be blockages forming in and around the coldplate micro fins (Gamers Nexus has seen this many times on Enermax AIO's but it happens to many brands as well) and limiting the flow of water.  There is only one way to test this unfortunately and that would be to order a new rad and install it to see.  Your ambient temps are fine; so, that can't be the cause of this overheating problem.  Overheating just sitting on the desktop is a strong sign that you aren't getting any coolant flowing through the waterblock.

[narrdarr]

How long have you had the h100i v2?

[Chazza]

1 minute ago, GeminiJ13 said:

Well, this is an ideal orientation for the rad.  If you are sure that you applied the thermal paste correctly and torqued down the pump onto the CPU with even force, then I have to defer to the water/glycol starting to evaporate out of the AIO.  There also might be blockages forming in and around the coldplate micro fins (Gamers Nexus has seen this many times on Enermax AIO's but it happens to many brands as well) and limiting the flow of water.  There is only one way to test this unfortunately and that would be to order a new rad and install it to see.  Your ambient temps are fine; so, that can't be the cause of this overheating problem.  Overheating just sitting on the desktop is a strong sign that you aren't getting any coolant flowing through the waterblock.

ok thanks my friend,

 

Just now, narrdarr said:

How long have you had the h100i v2?

as long as ive built the pc, so about 3 years ... i know ive heard lifetimes of about 2 years so i guess im pushing it,.. but i diddnt really want to buy again untill a complete rebuild with a 3080 ( or TI)

[GeminiJ13]

Just now, Chazza said:

ok thanks my friend,

 

as long as ive built the pc, so about 3 years ... i know ive heard lifetimes of about 2 years so i guess im pushing it,.. but i diddnt really want to buy again untill a complete rebuild with a 3080 ( or TI)

I have an NZXT AIO for easily 4 years now.  I get idle temps in the high 20's sitting on the desktop.  I've never seen it go past 70c in any workload.  It mainly hangs out around 40c doing just about anything.  I have an i5 7600K overclocked to 5.0ghz.

[narrdarr]

Well it sounds like the cooler is dieing.

I think it has a 5 year warranty

 

 

But what is the pump speed set to?

Try setting to max (extreme) in icue and let it run for a while without a load then test. Also listen to the pump for different sounds.

 

[Chazza]

1 minute ago, narrdarr said:

Well it sounds like the cooler is dieing.

I think it has a 5 year warranty

 

 

But what is the pump speed set to?

Try setting to max (extreme) in icue and let it run for a while without a load then test. Also listen to the pump for different sounds.

 

as far as i know the pump is always at max?

 

3000rpm on pump ( going by corsair app... im not a sticker for pc sounds as i use a headset and all fans/pumps are always set on max.

[narrdarr]

Yea my best guess is the cooler is low on fluid and gunked up in the block.

 

I repaired a used one with same issues your having. And that's what I found. It was ez, But if you can rma it i would do that over dyi

[Chazza]

thanks mate, yeh ive got another 4 months before warranty is out so im going to try and change it shame.. it was a bugger to install and only just fit the screws haha