. #4. First of all try to format your system completely if it is still turning off then check out with the power supply cables may be there is the problem in that if, either of these doesn't work the check witt your mother board and try to replace it. 0. Fix1: Perform a hard reset. A hard reset helps drain static electricity that may be causing the power issue. To perform a hard reset, follow these steps. Turn off the computer. Disconnect the power cable (for desktop computers), or disconnect the AC adapter and remove the battery (for Dell laptops with removable battery).
1 Check the Power Supply Unit & Power Switch. The Power Supply Unit (PSU) supplies power to the motherboard and all the other components in the computer. So first, make sure the PSU is plugged in safely. Also, check the switch at the back of the Power Supply Unit to ensure it is on. Now double-check the Power switch to ensure that it is working.
Analternative possibility is an issue with the power supply in the computer. Generally these can be replaced for very roughly US$100 (assuming it's not a high power computer like a dedicated gaming PC). I'd try replacing the battery, and if that fails go to a PC store and replace the power supply.
Iput everything together and couldn't get anything to power on, the PSU wouldn't even turn on when connected to the motherboard but would power on with the paperclip test. I couldn't jump the motherboard, tried different ram seatings, 1 stick of ram in different seatings, checked GPU on my old motherboard and double-checked PSU at the same
1 In my opinion, (almost) every Dell desktop computer has this kind of behavior when you connect its AC power cable. You can set the 'After Power Loss' setting in the BIOS (or UEFI) in 3 different states : On (computer turns on when connected to AC power supply) Off (in that case, the computer turns on for about 2 seconds and then turns off again) WhenI turn the power back on, the green lights come back. So, I think the power supply is still good. When I hit the power switch, the computer does not boot at all not even to the BIOS. And the fans do not turn, as they always did. Sometimes, after turning off the power, then turning it on again, then hitting the power switch I will see Badpower supply or inadequate power supply. A bad, failing, or inadequate power supply often causes this issue. If the hard drive is not getting enough power during the first time the computer starts, it cannot spin the hard drive platters fast enough to start the computer. However, if you restart the computer a few times, because the platters are already spinning, it can sometimes boot.
Whileplugged in but off, press an d hold in the #9 power supply diagnostic button. If the #8 LED stays green, the power supply has passed. If it fails, contact Technical Support. Provide the system service tag number, your shipping data, etc. OK, I shut down the computer and pushed the #9 button.
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    • computer not turning on power supply ok