I'm building a new computer and running into a major issue: after trying two different power supply units (PSUs), I still can't get any power to the system at all. I've attempted several troubleshooting methods, including shorting the power in various ways, but nothing seems to work. I've got a third PSU from a well-known brand arriving tomorrow, but I'm starting to wonder if the motherboard might be the culprit. I successfully installed the CPU without any problems, so I'm uncertain how to proceed without completely disassembling everything or buying a new motherboard. I'm open to any suggestions or insights on where else I may have gone wrong.
4 Answers
Good point! Also, it’s worth mentioning that if you haven’t replaced all the cables while swapping PSUs, there could be a problem there. Make sure everything is connected correctly and check the power switch connection to the motherboard.
It sounds like you really need to consider whether the motherboard is the issue here. Have you checked if the motherboard might be dead? Since you've tested two different PSUs, it could really be the motherboard that's faulty or shorted. Just something to think about.
The best troubleshooting you can do is start from scratch. Power only the motherboard, CPU, and RAM first, and see if that setup powers on. If it does, add components one by one. It's common to miss something when you have multiple parts you're swapping out.
Make sure you clarify what you mean by 'no power.' Are any case fans spinning? If not, checking the motherboard for faults could be a good step. Maybe even consider that the CPU could have an issue, although that seems less likely given your description.
Definitely check the motherboard. If you didn't already, it could help to remove it from the case and check for shorts.

Absolutely! Isolate each component to find where the issue lies. It might save you a lot of time!