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Intel Core i7-3770K @ 5GHz with Liquid Cooling Having Temperature Problems After ~4 Years

post #1 of 4
Thread Starter 

For the past few years I have been running an Intel Core i7-3770K at 5GHz on all cores with a 1.32 voltage setting (~1.321 actual). It's worked pretty well. Haven't had any issues from crashes to temperatures. I've been using what is technically a Corsair H80 AIO Liquid Cooling for cooling the CPU and it's kept temps between ~20C - 75C (lower during the Winter, naturally). In either case, over the past few days I have noticed something a little unsettling to me that is making me wonder if the cooling system is starting to fault or if it's something else.

 

Idle temperature have jumped to about 56-60C and 100% load temperatures have jumped to 91C.

 

I first noticed this behavior with Star Citizen so I pulled out Prime95 which tops out at about 87C which is a definite increase from the 75C that it would stay at before.

 

So I downclocked the CPU to 1.4GHz and that brought the temps to about 37C at load and 32C at idle.

 

What I am trying to figure out is whether or not it's the pump, the CPU, or just age (this now being the fourth year I believe). I have opened the side door which really didn't have an effect on temperatures at all and felt the two pipes that lead out from the radiator to the CPU. The return pipe is, as to be expected, warm and the pipe to the CPU felt about roughly room temperature (given a fan blows upwards and thus air flows across the pipes it hard to tell - the fan air was cooler than the pipe but the pipe was cooler than the return and both were about room temperature).

 

Now at the CPU, the actual plate is cold but the fan is also blowing air right onto it that is making it cooler so I felt the opposite side with my finger where pipes connect and both were notably hotter than the rest of the computer. However, when my finger was on the plate I could feel the vibrations from the pressure of the liquid still flowing over the CPU and that as I did say, was rather cool. I also felt the Radiator putting out air with both sides about the same temperature but than again I am also currently only using Chrome, Word, HWMonitor, and have background stuff I use like Emby Server open.

 

Just trying to figure out what to do at the moment.

 

I actually just took a picture to see what I was touching and noticed it's fairly dusty on the pipes so I know my first step is to clean out the dust which I have been negligent in doing as well as clean the air filters (just haven't had the time; been packing for a move).

    
CPUMotherboardGraphicsRAM
Intel Core i7-3770K P8Z77M-Pro MSI GeForce GTX 960 4G Gaming Corsair Vengeance 
RAMHard DriveHard DriveHard Drive
Corsair Vengeance Pro Seagate Barracuda 7200.14 Western Digital Red Western Digital Red 
Optical DriveCoolingOSMonitor
TSSTCorp 8X Dual Layer DVD RW Drive Slot Loading  MAINGEAR EPIC 120 Supercooler Windows 8 Pro with Media Center (x64) LG E2742 
MonitorKeyboardPowerCase
Samsung Projector Microsoft Wireless Keyboard Corsair AX860 Maingear F131 (Modified Silverstone FT03) 
MouseAudioAudioOther
Microsoft Wireless Mouse nVidia HD Audio Realtek HD Audio ASUS PCE-AC68 
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CPUMotherboardGraphicsRAM
Intel Core i7-3770K P8Z77M-Pro MSI GeForce GTX 960 4G Gaming Corsair Vengeance 
RAMHard DriveHard DriveHard Drive
Corsair Vengeance Pro Seagate Barracuda 7200.14 Western Digital Red Western Digital Red 
Optical DriveCoolingOSMonitor
TSSTCorp 8X Dual Layer DVD RW Drive Slot Loading  MAINGEAR EPIC 120 Supercooler Windows 8 Pro with Media Center (x64) LG E2742 
MonitorKeyboardPowerCase
Samsung Projector Microsoft Wireless Keyboard Corsair AX860 Maingear F131 (Modified Silverstone FT03) 
MouseAudioAudioOther
Microsoft Wireless Mouse nVidia HD Audio Realtek HD Audio ASUS PCE-AC68 
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post #2 of 4
Replace thermal paste + clean computer. If that doesn't help then replace the CPU cooler as a last resort.
Gaming Computer
(19 items)
 
   
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Intel Core 2 Quad Q6600 Asustek P5Q-PRO Nvidia 9800 GTX+ Kingston DDR2 8gb 
Hard DriveOptical DriveCoolingOS
Western Digital 1 TB Pioneer Noctua NH-U9B Windows 7 Ultimate 64-bit 
MonitorKeyboardPowerCase
Dell Monitor Logitech G110 Antec 750W Thermaltake Aluminium Old Case 
MouseMouse PadAudio
Logitech G500 Gaming Mouse Generic Mousepad Soundblaster 5.1 VX 
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Gaming Computer
(19 items)
 
   
CPUMotherboardGraphicsRAM
Intel Core 2 Quad Q6600 Asustek P5Q-PRO Nvidia 9800 GTX+ Kingston DDR2 8gb 
Hard DriveOptical DriveCoolingOS
Western Digital 1 TB Pioneer Noctua NH-U9B Windows 7 Ultimate 64-bit 
MonitorKeyboardPowerCase
Dell Monitor Logitech G110 Antec 750W Thermaltake Aluminium Old Case 
MouseMouse PadAudio
Logitech G500 Gaming Mouse Generic Mousepad Soundblaster 5.1 VX 
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post #3 of 4
Thread Starter 
Quote:
Originally Posted by benjamen50 View Post

Replace thermal paste + clean computer. If that doesn't help then replace the CPU cooler as a last resort.

 

Cleaning the air intake filters and the radiator seems to have done the trick and brought the CPU down to its normal operational temperatures (topping out at 75C on a super hot day).

 

I will ask, and this may be a dumb question to ask, but with Liquid Cooling do I need any special thermal paste and what's the best one to purchase. I hear many suggest Arctic Silver but it's usually on air cooled systems.

 

Also, what would you suggest to remove the old thermal paste.

 

Even though the CPU has returned to its normal stable temperatures I am sure after all this time at such a high overclock that it's probably time overdue to replace the thermal paste on the processor and squeezing out a few extra degrees would be nice but I know that 3770Ks can be ovens at 5GHz overclocks compared to newer processors (but there hasn't been any real performance increases from older processors to the current generation except on the Xeon line)

    
CPUMotherboardGraphicsRAM
Intel Core i7-3770K P8Z77M-Pro MSI GeForce GTX 960 4G Gaming Corsair Vengeance 
RAMHard DriveHard DriveHard Drive
Corsair Vengeance Pro Seagate Barracuda 7200.14 Western Digital Red Western Digital Red 
Optical DriveCoolingOSMonitor
TSSTCorp 8X Dual Layer DVD RW Drive Slot Loading  MAINGEAR EPIC 120 Supercooler Windows 8 Pro with Media Center (x64) LG E2742 
MonitorKeyboardPowerCase
Samsung Projector Microsoft Wireless Keyboard Corsair AX860 Maingear F131 (Modified Silverstone FT03) 
MouseAudioAudioOther
Microsoft Wireless Mouse nVidia HD Audio Realtek HD Audio ASUS PCE-AC68 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Intel Core i7-3770K P8Z77M-Pro MSI GeForce GTX 960 4G Gaming Corsair Vengeance 
RAMHard DriveHard DriveHard Drive
Corsair Vengeance Pro Seagate Barracuda 7200.14 Western Digital Red Western Digital Red 
Optical DriveCoolingOSMonitor
TSSTCorp 8X Dual Layer DVD RW Drive Slot Loading  MAINGEAR EPIC 120 Supercooler Windows 8 Pro with Media Center (x64) LG E2742 
MonitorKeyboardPowerCase
Samsung Projector Microsoft Wireless Keyboard Corsair AX860 Maingear F131 (Modified Silverstone FT03) 
MouseAudioAudioOther
Microsoft Wireless Mouse nVidia HD Audio Realtek HD Audio ASUS PCE-AC68 
  hide details  
Reply
post #4 of 4
Any $5 or more thermal paste will do such as Arctic Silver 5. There are alternatives like Noctua NT-H1. Use isopropyl alcohol (Usually 90% or higher) with lint free cloth to remove the old thermal paste.

Best one as a all-rounder thermal paste is probably the Noctua NT-H1.
Gaming Computer
(19 items)
 
   
CPUMotherboardGraphicsRAM
Intel Core 2 Quad Q6600 Asustek P5Q-PRO Nvidia 9800 GTX+ Kingston DDR2 8gb 
Hard DriveOptical DriveCoolingOS
Western Digital 1 TB Pioneer Noctua NH-U9B Windows 7 Ultimate 64-bit 
MonitorKeyboardPowerCase
Dell Monitor Logitech G110 Antec 750W Thermaltake Aluminium Old Case 
MouseMouse PadAudio
Logitech G500 Gaming Mouse Generic Mousepad Soundblaster 5.1 VX 
  hide details  
Reply
Gaming Computer
(19 items)
 
   
CPUMotherboardGraphicsRAM
Intel Core 2 Quad Q6600 Asustek P5Q-PRO Nvidia 9800 GTX+ Kingston DDR2 8gb 
Hard DriveOptical DriveCoolingOS
Western Digital 1 TB Pioneer Noctua NH-U9B Windows 7 Ultimate 64-bit 
MonitorKeyboardPowerCase
Dell Monitor Logitech G110 Antec 750W Thermaltake Aluminium Old Case 
MouseMouse PadAudio
Logitech G500 Gaming Mouse Generic Mousepad Soundblaster 5.1 VX 
  hide details  
Reply
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