- Mar 21, 2017
- 1
- 0
- 510
Setup:
Processor: Intel Boxed Core i7-6800K Processor
Cooling: Corsair Hydro Series H100i v2 Extreme Performance Liquid CPU Cooler
Paste: Arctic Silver 5 AS5-3.5G Thermal Paste
Motherboard: MSI Extreme Gaming Intel X99 LGA 2011 DDR4 USB 3.1 ATX Motherboard (X99A Raider)
Case: MasterCase Pro 5 Mid-Tower Case
RAM: G.SKILL Ripjaws V Series 16GB (2 x 8GB) 288-Pin DDR4 SDRAM DDR4 3200
SSD: Intel SSD 600p Series
GPU: EVGA GeForce GTX 1070 FTW GAMING ACX 3.0
PSU: EVGA SuperNOVA 750 P2, 80+ PLATINUM 750W
OS: Windows 10 Home 64-bit
Problem:
Today I was using my computer at 15% CPU when all of a sudden it started performing sluggishly, the fans came on, and when I checked all cores of CPU temperature were at 92-3 C and climbing over 10 seconds to 98 C. I immediately shut my computer down.
I built this computer in late October 2016 for gaming and average 6 hours per day of use (lifetime ~1k hours) typically at 5-20% of CPU. I have never had any issues with the PC before, temperatures always very cool, performance always consistent. I have not downloaded anything within the last week and do not download any suspect materials nor from suspect locations.
I opened the case, cleaned the minimal dust from the fans, and booted the computer up again in BIOS mode, watching the temp rise to 74 C in less than a minute. The fans were blowing cool air irespective of CPU temperature, although the intensity increased with CPU temp, and the pump from the heat sink to the metal seemed to be working (it felt like fluid was flowing in sleeved hoses leading from heat to the radiator), and the metal radiator remained cool to the touch. I then shut down the computer, removed the heat sink, checked the mounting bracket (seemed structurally intact), noted that CPU and heat sink surfaces seemed properly in contact, checked the thermal paste (it looked the same as Arctic Silver 5 paste right from the bottle evenly distributed), cleaned the CPU and heat sink surfaces with isopropyl alcohol and lint-free cloth, reapplied a pea-sized quantity of Arctic Silver 5 thermal paste, and remounted the heat sink. I booted the computer in BIOS again, and the temperature started around 42 on all CPU cores rising uniformly to 70 C before I again shut down the computer.
What should I try next?
This certainly seems to be the cooling system given the radiator remaining cool and the fans blowing cool air from the radiator – do I need to replace the cooling system after just 5 months/ 1k hours?
Could the overheating still be an issue with the motherboard or CPU? If so how to test? If not what other alternatives seem likely? Given sudden onset, no recent downloads, and generally being very careful about browsing/ downloads on this computer, is a virus still possible?
Resources: I have a duplicate motherboard (seemed to work well and was considering trying another build). Other than that I have no other alternate components to test.
Thanks in advance for your replies.
NB: I did note some related posts, e.g. a 6700k overheating but that was a plastic mounting bracket warped which doesn't match my problem exactly.
Processor: Intel Boxed Core i7-6800K Processor
Cooling: Corsair Hydro Series H100i v2 Extreme Performance Liquid CPU Cooler
Paste: Arctic Silver 5 AS5-3.5G Thermal Paste
Motherboard: MSI Extreme Gaming Intel X99 LGA 2011 DDR4 USB 3.1 ATX Motherboard (X99A Raider)
Case: MasterCase Pro 5 Mid-Tower Case
RAM: G.SKILL Ripjaws V Series 16GB (2 x 8GB) 288-Pin DDR4 SDRAM DDR4 3200
SSD: Intel SSD 600p Series
GPU: EVGA GeForce GTX 1070 FTW GAMING ACX 3.0
PSU: EVGA SuperNOVA 750 P2, 80+ PLATINUM 750W
OS: Windows 10 Home 64-bit
Problem:
Today I was using my computer at 15% CPU when all of a sudden it started performing sluggishly, the fans came on, and when I checked all cores of CPU temperature were at 92-3 C and climbing over 10 seconds to 98 C. I immediately shut my computer down.
I built this computer in late October 2016 for gaming and average 6 hours per day of use (lifetime ~1k hours) typically at 5-20% of CPU. I have never had any issues with the PC before, temperatures always very cool, performance always consistent. I have not downloaded anything within the last week and do not download any suspect materials nor from suspect locations.
I opened the case, cleaned the minimal dust from the fans, and booted the computer up again in BIOS mode, watching the temp rise to 74 C in less than a minute. The fans were blowing cool air irespective of CPU temperature, although the intensity increased with CPU temp, and the pump from the heat sink to the metal seemed to be working (it felt like fluid was flowing in sleeved hoses leading from heat to the radiator), and the metal radiator remained cool to the touch. I then shut down the computer, removed the heat sink, checked the mounting bracket (seemed structurally intact), noted that CPU and heat sink surfaces seemed properly in contact, checked the thermal paste (it looked the same as Arctic Silver 5 paste right from the bottle evenly distributed), cleaned the CPU and heat sink surfaces with isopropyl alcohol and lint-free cloth, reapplied a pea-sized quantity of Arctic Silver 5 thermal paste, and remounted the heat sink. I booted the computer in BIOS again, and the temperature started around 42 on all CPU cores rising uniformly to 70 C before I again shut down the computer.
What should I try next?
This certainly seems to be the cooling system given the radiator remaining cool and the fans blowing cool air from the radiator – do I need to replace the cooling system after just 5 months/ 1k hours?
Could the overheating still be an issue with the motherboard or CPU? If so how to test? If not what other alternatives seem likely? Given sudden onset, no recent downloads, and generally being very careful about browsing/ downloads on this computer, is a virus still possible?
Resources: I have a duplicate motherboard (seemed to work well and was considering trying another build). Other than that I have no other alternate components to test.
Thanks in advance for your replies.
NB: I did note some related posts, e.g. a 6700k overheating but that was a plastic mounting bracket warped which doesn't match my problem exactly.
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