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Hi sorry if I sound like an idiot because I am new.
I recently built my first PC and for the most part it works perfectly. However, sometimes when I run a program that uses a lot of CPU, the heatsink fan will start spinning fast. I assumed this was an automatic precaution to prevent overheating so I thought nothing of it. However, even when I close the program (and CPU usage levels drop), the fan will start to act weird. Every ~10 seconds it will speed up for ~2 seconds. Nothing lags or crashes or anything, but it's annoying. I thought maybe it would stop once the PC cooled down, so I turn my chassis fan to high (it has 2 settings) for an hour. I figure that would be enough, I feel the side of the case and it has cooled down, so I turn the chassis fan down, but I still hear the heatsink fan doing that. EDIT: Should note that it returns to normal after I reset PC, and this is the only way I know of to fix it.
I went into BIOS menu when my PC was at room temperature and CPU was about 60 and motherboard was about 40 (Celcius). All BIOS settings are on default. My CPU is a intel i5 4690. I have checked power supply cables and they're pretty secure and yes I connected all the pins. I might have to try and heat up my PC then check temps, but in the meantime if anyone has any ideas that would be great.
I recently built my first PC and for the most part it works perfectly. However, sometimes when I run a program that uses a lot of CPU, the heatsink fan will start spinning fast. I assumed this was an automatic precaution to prevent overheating so I thought nothing of it. However, even when I close the program (and CPU usage levels drop), the fan will start to act weird. Every ~10 seconds it will speed up for ~2 seconds. Nothing lags or crashes or anything, but it's annoying. I thought maybe it would stop once the PC cooled down, so I turn my chassis fan to high (it has 2 settings) for an hour. I figure that would be enough, I feel the side of the case and it has cooled down, so I turn the chassis fan down, but I still hear the heatsink fan doing that. EDIT: Should note that it returns to normal after I reset PC, and this is the only way I know of to fix it.
I went into BIOS menu when my PC was at room temperature and CPU was about 60 and motherboard was about 40 (Celcius). All BIOS settings are on default. My CPU is a intel i5 4690. I have checked power supply cables and they're pretty secure and yes I connected all the pins. I might have to try and heat up my PC then check temps, but in the meantime if anyone has any ideas that would be great.
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