I recently upgraded the power supply unit (PSU) in my prebuilt PC from a 700W to a 750W model. After connecting everything, the computer powers on briefly—fans and lights come on—but then shuts off after about five seconds. I've also swapped out the RAM, but that didn't change anything. Did I make a mistake while connecting something?
2 Answers
Did you use the new PSU's cables? Sometimes, not using the right cables can cause problems. If you did use them, that rules that out!
Could you share a few pictures of your setup? Sometimes it helps to see the wiring and connections to spot any potential issues.
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