A friend of mine switched his system to a new case. Luke says: January 19, 2020 at 11:09 am We are having the same problem. I want to make sure this computer last so ive been doing research and there seems to be a lot of people saying putting your pc on the floor will have it attract more dust and reduce airflow. Reply. when i went to turn the computer on, it turns on but none of the fans or anything work. However, after connecting all the fans to the lighting node pro it came with, only two of the fans light up. Can you please help me. For the Fans. I have a R4 Fractal Design case, and there was no light on the front panel that shows that the computer is turned on either. I unplugged my GPU to run some tests and I found out that both fans are working just fine. I've tried to plug the chassis fan … There are two fan's inside my Computer, and the large one is not working, but the small fan is. If your PC is working just fine and you're happy with how loud its fans are, you don't need to adjust your CPU fan settings. I downloaded some apps to manually turn on the fans but it isnt spinning. I pushed the start button and the case fan would spin a little and stop repeatedly, the graphics card light would flash, the mother board has an … The engine coolant sensor or a separate engine temperature switch is used to monitor engine temperature. hey guys, I got the 3-pack, and an extra LL120 rgb fan this weekend to put in my system. i took everything apart and took it out of the case to clean it then i put everything back in. ports 1 and 2 work with lights, and the rest of the ports don't make the fans light up. So I have built my own pc now for the first time. The extra pin adds speed control to the fan, while 3-pins typically work as fast as they can. I woke up on Christmas to find that my 8 year old shitty work computer had been replaced with a high end gaming pc (and a new monitor!). Now the system powers up but the fans connected to the motherboard won't work. But I've set the switch to full speed. So, A engine cooling fan failure; or a failure of the fan relay or control circuit is bad news; because it can allow the engine to overheat. My pc is on with the fans on and lights work but it won’t power anything that I plug into USB ports or hdmi ports. It's an Antec sixhundred case. The sidepanel fan is 1200 rpm silent type so full speed. My top fan doesn't seem to do better at full speed or lower. I turned the computer off and unplugged it immediately. I recently started to fix an old computer for my sister. Noise is also a factor after all. Just remember that 3-pin fans can still work on 4-pin connectors – it just won’t be controllable. (I already checked the if the fans are plugged) I dont know what the problem is since both fans are working well when I plugged them in a different GPU and my PC can detect my GPU. The engine cooling fan only runs when needed to help cool the engine. All lights, fans come on but no HDMI detected. None of them, not even the cpu fan. When a PC gets hot, using fans is a simple and … My computer would not start today. Recently, my computer fan kicks up sometimes and just doesn't stop running. Controlling the CPU fan speed in your PC (or all the fans, in fact) is a way to give you more control over your Windows 10 experience. New memory cards and another new mother board and the same results. 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