Back around December my computer had powered off and when I went to bring it back up the CPU was running extremely slow. It wouldn't boot into the right startup and the CPU speed was down to .200 - 1 GHZ. After a few restart I finally got it to boot to the right drive and the speed seemed to have gone back up. A few months passed with no issues, I did notice the cooling in the system sounded very loud when I think back now.
Yesterday, I woke up to see my computer was once again running extremely slow this time without powering down. I rebooted the system which took a while and noticed when I went into the BIOS that the CPU was down to .200 - .800 GHZ, fluctuating time to time and the temperature was reporting at 91 celcius. This time rebooting was not solving my issue, when I reset my bios settings sometimes after the restart it would rise up to 1.8 - 2 GHZ for a little bit then throttle back down. I wanted to check if maybe the temp readings were wrong, so I disabled the CPU throttle in the BIOS but it did not change the outcome. If I exited the bios without saving, it would go to a repair screen but error out in a loop until I ctrl+alt+del to restart it. Though, this time I wasn't having issues booting to the right partition. Finally I unplugged my system for a minute, removed it from my UPS in case it wasn't drawing enough power for some reason and plugged it into another surge protector I had. It booted up back to full speed and the temp was reporting at 46 celcius, I thought maybe I had figured out the issue. I played some games to test it out and it was running fine for a few hours. Then around midnight it went back to throttling back down and temps reporting at 91 c. Booting into windows I was able to check temps also reporting at 100 c and it showed me as the clock speed fluctuated that the Temp throttle would go on and off over and over again. This time plugging into a new plug would not fix the issue and after a few reports I could get the speed up to 1.8 - 2ghz for a bit until it would throttle down again. I monitored the CPU speed on the windows 10 task manager and saw it would fluctuate from .2 - 3.8 ghz last night before I went to bed. Over time it would stop going up and just stay at around .2-.5 GHZ. The one thing I did notice was the cooling was no longer loud anymore like it was the past few months, could that be a sign of the motor for the liquid cooling being dead? One last thing, the memory speed did not show any fluctuating and the case idle temp was reporting at 37 celcius.
I'm not sure what the problem is exactly, so I came here for expert advice. My guess is maybe the cooling I have is actually dead now? The fan is still running but since its liquid maybe the pump is not circulating anymore? Otherwise It's either a CPU or Motherboard issue, both much more expensive options for me to test since I do not have a warranty on my system anymore. Any one have experience with this issue? I'm thinking about having a EVO 212 fan+heatsink overnighted to give it a shot if its likely just the cooling.
Sorry that was so long, I just wanted to make it as detailed as possible. Stats below -
INTEL CORE I5-4690K 3.50 GHZ 6MB INTEL SMART CACHE LG
256GB ADATA SP610 SATA III 6.0Gb/s SSD
2 ADATA XPG V3 4GB DDR3 2133 MEMORY - 8 GB total
COOLERMASTER SEIDON 120M WATER COOLER
GIGABYTE Z97X-SLI 2 WAYS SLI & CROSSFIREX SATA 6GB/S USB 3.0 ATX
SUPERCLOCKED ACX EVGA NVIDIA GTX 970 4GB
Corsair CMPSU-750TX PSU
Yesterday, I woke up to see my computer was once again running extremely slow this time without powering down. I rebooted the system which took a while and noticed when I went into the BIOS that the CPU was down to .200 - .800 GHZ, fluctuating time to time and the temperature was reporting at 91 celcius. This time rebooting was not solving my issue, when I reset my bios settings sometimes after the restart it would rise up to 1.8 - 2 GHZ for a little bit then throttle back down. I wanted to check if maybe the temp readings were wrong, so I disabled the CPU throttle in the BIOS but it did not change the outcome. If I exited the bios without saving, it would go to a repair screen but error out in a loop until I ctrl+alt+del to restart it. Though, this time I wasn't having issues booting to the right partition. Finally I unplugged my system for a minute, removed it from my UPS in case it wasn't drawing enough power for some reason and plugged it into another surge protector I had. It booted up back to full speed and the temp was reporting at 46 celcius, I thought maybe I had figured out the issue. I played some games to test it out and it was running fine for a few hours. Then around midnight it went back to throttling back down and temps reporting at 91 c. Booting into windows I was able to check temps also reporting at 100 c and it showed me as the clock speed fluctuated that the Temp throttle would go on and off over and over again. This time plugging into a new plug would not fix the issue and after a few reports I could get the speed up to 1.8 - 2ghz for a bit until it would throttle down again. I monitored the CPU speed on the windows 10 task manager and saw it would fluctuate from .2 - 3.8 ghz last night before I went to bed. Over time it would stop going up and just stay at around .2-.5 GHZ. The one thing I did notice was the cooling was no longer loud anymore like it was the past few months, could that be a sign of the motor for the liquid cooling being dead? One last thing, the memory speed did not show any fluctuating and the case idle temp was reporting at 37 celcius.
I'm not sure what the problem is exactly, so I came here for expert advice. My guess is maybe the cooling I have is actually dead now? The fan is still running but since its liquid maybe the pump is not circulating anymore? Otherwise It's either a CPU or Motherboard issue, both much more expensive options for me to test since I do not have a warranty on my system anymore. Any one have experience with this issue? I'm thinking about having a EVO 212 fan+heatsink overnighted to give it a shot if its likely just the cooling.
Sorry that was so long, I just wanted to make it as detailed as possible. Stats below -
INTEL CORE I5-4690K 3.50 GHZ 6MB INTEL SMART CACHE LG
256GB ADATA SP610 SATA III 6.0Gb/s SSD
2 ADATA XPG V3 4GB DDR3 2133 MEMORY - 8 GB total
COOLERMASTER SEIDON 120M WATER COOLER
GIGABYTE Z97X-SLI 2 WAYS SLI & CROSSFIREX SATA 6GB/S USB 3.0 ATX
SUPERCLOCKED ACX EVGA NVIDIA GTX 970 4GB
Corsair CMPSU-750TX PSU
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