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First custom water loop seeing high cpu temps

post #1 of 34
Thread Starter 
Hello,

This is my first custom water loop I've attempted, my last few builds have been all in one coolers. I'm concerned I may have something wrong in my loop as I'm seeing higher cpu temps then what I was expecting.

My top end goal was to run my 7700K at 5ghz under 80°C and also overclock my 1080ti. Currently my 7700k has reached up to 80°C while playing dota 2 which isn't very cpu intensive. This is all under stock settings currently.

I can get more details tonight but my max cpu temp I saw yesterday was 80°C and max GPU temp was 52°C.

I'm currently thinking it's either a really bad CPU or I need to check the thermal paste application, I know I was very conservative with my application so I may not of applied enough.

My setup is a EK-P360 kit with an additional coolstream 240 SE.


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post #2 of 34
Delid your 7700k, apply liquid metal in the die. Temps will drop drastically.
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post #3 of 34
Also, if you are running XMP in your RAM, MSI boards overvolts CPU PLL Voltage to 1.3V, which raises temps close to 10°C. Set it back manually to 1.2V(default value).
Edited by Vommok - 4/12/17 at 10:24am
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post #4 of 34
Thread Starter 
Quote:
Originally Posted by Vommok View Post

Also, if you are running XMP in your RAM, MSI boards overvolts CPU PLL Voltage to 1.3V, which raises temps close to 10°C. Set it back manually to 1.2V(default value).

Thanks that's a huge help, betting that is what is causing that, I'll try a simple test of disabling xmp.

I'll look into delidding, haven't wanted to do it but might be for the best, already have the liquid metal.
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7700k MSI Z270 gaming M5 Zotac 1080TI FE w/ EK Block Corsair Vengeance 16GB DDR4-3200 
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samsung 512gb 960 pro EKWB 360rad+280rad Windows 10 64bit Pro Dell S2417DG 
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Dell U2412M Samsung JU7100 40" OCN ducky shine SeaSonic PRIME 650W 
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7700k MSI Z270 gaming M5 Zotac 1080TI FE w/ EK Block Corsair Vengeance 16GB DDR4-3200 
Hard DriveCoolingOSMonitor
samsung 512gb 960 pro EKWB 360rad+280rad Windows 10 64bit Pro Dell S2417DG 
MonitorMonitorKeyboardPower
Dell U2412M Samsung JU7100 40" OCN ducky shine SeaSonic PRIME 650W 
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post #5 of 34
Thread Starter 
Holy smokes, just did some research and didn't realize how bad the tim on the die is. up to 30°C drop?
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samsung 512gb 960 pro EKWB 360rad+280rad Windows 10 64bit Pro Dell S2417DG 
MonitorMonitorKeyboardPower
Dell U2412M Samsung JU7100 40" OCN ducky shine SeaSonic PRIME 650W 
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CPUMotherboardGraphicsRAM
7700k MSI Z270 gaming M5 Zotac 1080TI FE w/ EK Block Corsair Vengeance 16GB DDR4-3200 
Hard DriveCoolingOSMonitor
samsung 512gb 960 pro EKWB 360rad+280rad Windows 10 64bit Pro Dell S2417DG 
MonitorMonitorKeyboardPower
Dell U2412M Samsung JU7100 40" OCN ducky shine SeaSonic PRIME 650W 
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post #6 of 34
Quote:
Originally Posted by firefox2501 View Post

Holy smokes, just did some research and didn't realize how bad the tim on the die is. up to 30°C drop?

Yep, the TIM that comes with Intel CPU is pretty bad. Thats why we delid our chips and apply liquid metal in the die, temps drop drastically, some people report close to 30°C after the process.
You can do it with razorblade, but you can damage the PCB and most likelly killing the cpu. Der8auer delid die mate or rockitcool 88 are the best delid solutions IMHO.
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CPUMotherboardGraphicsRAM
Intel Q9550 Asus P5Q3 Deluxe GTX 660 Ti Corsair Vengeance 8Gb 1600Mhz CL9 
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post #7 of 34
Thread Starter 
Well that gives me no choice, just ordered a delid kit and going to get this sorted out.
My rig
(18 items)
 
  
CPUMotherboardGraphicsRAM
7700k MSI Z270 gaming M5 Zotac 1080TI FE w/ EK Block Corsair Vengeance 16GB DDR4-3200 
Hard DriveCoolingOSMonitor
samsung 512gb 960 pro EKWB 360rad+280rad Windows 10 64bit Pro Dell S2417DG 
MonitorMonitorKeyboardPower
Dell U2412M Samsung JU7100 40" OCN ducky shine SeaSonic PRIME 650W 
CaseMouseAudioAudio
IN Win 303 Corsair scimitar Creative X7 Audio Technica ATH-AD900 
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My rig
(18 items)
 
  
CPUMotherboardGraphicsRAM
7700k MSI Z270 gaming M5 Zotac 1080TI FE w/ EK Block Corsair Vengeance 16GB DDR4-3200 
Hard DriveCoolingOSMonitor
samsung 512gb 960 pro EKWB 360rad+280rad Windows 10 64bit Pro Dell S2417DG 
MonitorMonitorKeyboardPower
Dell U2412M Samsung JU7100 40" OCN ducky shine SeaSonic PRIME 650W 
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IN Win 303 Corsair scimitar Creative X7 Audio Technica ATH-AD900 
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post #8 of 34
I couldn't hit 5ghz with my 7700k. Thermal limitation. I have 2x200mm radiators with an ek supremacy evo. I would hit mid 90c at 4.8ghz. Once I removed the heat spreader and used liquid metal, I dropped about 30c at 4.9ghz, and can hit 5.18 for bench runs.

The TIM on my heat spreader looked like it was barely making contact with the die.

If you remove the lid, be sure to remove the black glue that attached it to the substrate. That will help better contact with the die reducing the gap.

With the proper tools and supplies, I would give the process a level 3 difficulty out of 10...
post #9 of 34
Quote:
Originally Posted by firefox2501 View Post

Well that gives me no choice, just ordered a delid kit and going to get this sorted out.


If you feel up to it, and if you really want to get as low as you can on water cooling, either run a naked cpu with no heat spreader ( kinda risky ) or you can do what I did to a buddy of mine.
Do some wet sandpaper work on the heat spreader to get it as low as you can to the cpu die. I used 0,1mm thick black paper that colors whatever it comes in contact with and keep sanding that heat spreader until you get some kind of color contact. clean the die and heat spreader, apply liquid metal = vola! second best to naked die
post #10 of 34
Quote:
Originally Posted by Cooked CPU View Post

If you feel up to it, and if you really want to get as low as you can on water cooling, either run a naked cpu with no heat spreader ( kinda risky ) or you can do what I did to a buddy of mine.
Do some wet sandpaper work on the heat spreader to get it as low as you can to the cpu die. I used 0,1mm thick black paper that colors whatever it comes in contact with and keep sanding that heat spreader until you get some kind of color contact. clean the die and heat spreader, apply liquid metal = vola! second best to naked die

Just to clarify are you wet sanding the heat spreader on the CPU or the CPU block heat spreader or both?

Thanks!
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