My gaming PC is less than a year old and won't turn on after I was away for a week. There are no lights or fan movement, although the monitor and outlets work. I've already unplugged it and held the power button for 15 seconds. What should I try before taking it to a repair shop?
PC won't turn on after I was away. What should I check?
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4p~bento_97
Answers
Start with the power path. Check that the switch on the back of the power supply is set to on and that the cord is fully seated at both ends. If the outlet has its own switch, check that too.
Try a different compatible power cord if you have one. If there's a power strip or surge protector involved, bypass it and connect the PC directly to a working wall outlet.
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No lights or fan movement points toward a power issue rather than just a monitor problem. If the cord and outlet checks don't help, the power supply is one possible culprit, but that doesn't prove it's failed. The power button or another internal connection could also be involved.
Since the PC is under a year old, check the seller's or manufacturer's warranty and contact their support before opening it or replacing parts. A repair shop is a reasonable next step if support can't help.
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I wouldn't jump straight to the CMOS battery. A weak battery can cause startup or settings problems, but a completely lifeless PC is a reason to check the power supply and connections first. If the machine does start but still has no picture, motherboard diagnostic lights may help narrow that down.
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4p~bento_97:
It's already connected directly to the wall, and the power supply switch is on. I'll try another compatible cord.