Problem with Watercooled Stock Intel i9-7900x Temperatures

[WolfDaBoss]

Hey,

I recently bought an i9 7900x and when i was stress testing it with aida 64 stock I was hitting 80 degrees on the package. This was worrying to me as I bought a very expensive watercooling rig consisting of an:

Alphacool Monsta XT45 540MM Radiator

EK Supremacy EVO

EK D5 Pump

Noctua NF-A14 3000 PWM Fans

 

Looking at other peoples temperatures, I knew this was not normal and I am just looking for any suggestions as to what it might be because I honestly have no idea.

[The Sloth]

did you delid? 

[WolfDaBoss]

no i did not delid the processor 

[RadiatingLight]

i9s run extremely hot.

a single 240mm rad isn't enough.

 

you need a 360mm rad, or two separate rads.

[RadiatingLight]

Just now, WolfDaBoss said:

no i did not delid the processor 

 

[WolfDaBoss]

Just now, RadiatingLight said:

i9s run extremely hot.

a single 240mm rad isn't enough.

 

you need a 360mm rad, or two separate rads.

It isnt 240mm it is 540mm

[RadiatingLight]

Just now, WolfDaBoss said:

It isnt 240mm it is 540mm

Oh, really?

damn.

maybe try remounting the waterblock

use more thermal paste than a little pea BTW, since HEDT is a larger chip, and needs more paste. (not a ton, just like double or so.)

[WolfDaBoss]

2 minutes ago, nerdslayer1 said:

did you delid? 

no i didnt but it shouldnt hit that temp with the water cooling setup i have

[Shimejii]

Basically you are SOL because i9s  are terrible when it comes to Thermal performance. Intel has been cheap little shits for Kabylake and skylake for the TIM so your going to have awful thermals depending on the voltages.

 

Default voltages may be super high, make sure that they are round 1.2-1.3, some mobos put it to 1.35-1.4 as default.

 

 

[The Sloth]

Just now, WolfDaBoss said:

no i didnt but it shouldnt hit that temp with the water cooling setup i have

bad TIM

[WolfDaBoss]

Just now, RadiatingLight said:

Oh, really?

damn.

maybe try remounting the waterblock

use more thermal paste than a little pea BTW, since HEDT is a larger chip, and needs more paste. (not a ton, just like double or so.)

I used about double then normal i might need to remount using more idk

[WolfDaBoss]

Just now, nerdslayer1 said:

bad TIM

Ya i know it has bad tim but looking at review it should only be hitting 60 to 65c

[Majestic]

If you'd know how thermal conductivity works, you would know the radsize has very little to do with the issues the i9's have.

The bottleneck is the TIM, running higher pumpspeeds and bigger rads will work at extreme diminishing returns.

 

Just now, WolfDaBoss said:

Ya i know it has bad tim but looking at review it should only be hitting 60 to 65c

What review?

[RadiatingLight]

Just now, WolfDaBoss said:

I used about double then normal i might need to remount using more idk

I don't know...

 

try remounting still, it might work. (see the distribution and judge if you need more or less using that.)

 

[WolfDaBoss]

1 minute ago, Shimejii said:

Basically you are SOL because i9s  are terrible when it comes to Thermal performance. Intel has been cheap little shits for Kabylake and skylake for the TIM so your going to have awful thermals depending on the voltages.

 

Default voltages may be super high, make sure that they are round 1.2-1.3, some mobos put it to 1.35-1.4 as default.

 

 

Voltages were 1.2v max during the stress test

[WolfDaBoss]

2 minutes ago, Majestic said:

If you'd know how thermal conductivity works, you would know the radsize has very little to do with the issues the i9's have.

The bottleneck is the TIM, running higher pumpspeeds and bigger rads will work at extreme diminishing returns.

 

What review?

https://www.techspot.com/review/1437-overclocking-core-i9/

[WolfDaBoss]

2 minutes ago, RadiatingLight said:

I don't know...

 

try remounting still, it might work. (see the distribution and judge if you need more or less using that.)

 

ya i might need to i will probably do that soon if i cant find it to be anything else

[tom_w141]

3 minutes ago, WolfDaBoss said:

I used about double then normal i might need to remount using more idk

Is it spreading evenly when you remove the block?

 

Is your pump increasing in RPM?

 

@done12many2 has had the same processor and a bigger cooling setup.

[Majestic]

1 minute ago, WolfDaBoss said:

https://www.techspot.com/review/1437-overclocking-core-i9/

its 74 at 1.2V

[WolfDaBoss]

Just now, tom_w141 said:

Is it spreading evenly when you remove the block?

 

Is your pump increasing in RPM?

 

@done12many2 has had the same processor and a bigger cooling setup.

i didnt remove the block and yes the pump was increasing in rpm. 

i even set the rpm on the pump to max to see if it would help but it did not

[tom_w141]

1 minute ago, WolfDaBoss said:

i didnt remove the block and yes the pump was increasing in rpm. 

i even set the rpm on the pump to max to see if it would help but it did not

You said you remounted with different paste amounts? How did you change out the paste without removing the block? Anyway do this and check for an even spread.

[WolfDaBoss]

1 minute ago, Majestic said:

its 74 at 1.2V

it spiked to around 70 when it first start it and 80 at load 

[WolfDaBoss]

2 minutes ago, tom_w141 said:

You said you remounted with different paste amounts? How did you change out the paste without removing the block? Anyway do this and check for an even spread.

i am planning to do that if i could not find any other reason why it might be so high but i dont know why it wouldnt have an even spread

[tom_w141]

Just now, WolfDaBoss said:

i am planning to do that if i could not find any other reason why it might be so high but i dont know why it wouldnt have an even spread

X299 runs hot but not that hot at stock with your described setup. So im going with error in cooling system. You said the pump did spin up according to the curve so my next guess is paste didn't spread/uneven mounting contact. Check that next.

[WolfDaBoss]

Just now, tom_w141 said:

X299 runs hot but not that hot at stock with your described setup. So im going with error in cooling system. You said the pump did spin up according to the curve so my next guess is paste didn't spread/uneven mounting contact. Check that next.

ok i will see