I ran into some issues last week when my computer needed several attempts to power up. Later it stopped turning on at all. I opened the casing to see that mobo had power and RGB lights were on as well as LAN lights, but still would not turn on. I tried touching a screw driver to the pw pins but still nothing. I took out the PSU and did the paperclip test and the PSU powered up randomly after every several attempts. I changed the power cord and it started working perfectly even fully connected to the mobo and devices. Well it started the same thing after 3 days, changed power cord again but no luck this time. I have it out of the system again and did the paperclip test again. This time it is worse. It powers on randomly after 15 to 20 attempts. Sometimes it powers up and powers down in a couple of seconds. Once it turns on and the paperclip is removed it would again need mulpitle attempts to come alive. Changed power cord and tried different sockets in the house with no different results. I bought this PSU less than a month ago. Sometimes cycling power with the on/off switch helps it seems. Any idea what could be wrong ? How to fix it ? The PSU is a Cooler Master 650W 80+ Gold. Mobo is ASUS TUF Z390 Gaming Plus.