The support for the motherboard fails when using an 8-pin CPU connector.
The support for the motherboard fails when using an 8-pin CPU connector.
Hey guys. A little backstory here. I was doing some light office work this morning and all of the sudden the PC shuts down. No power outage, nothing spilled on it or stepped on it, it just stopped. After trying to turning it on back again, it lighted up and then shutdown. I knew instantly that the PSU was somehow protecting the system and probably something was making short circuit. I began to strip down the PC and at the end I tried all the componentes with another working AM4 board and GPU, CPU and PSU all worked flawlessly when I tried in the other system. However, the motherboard alone when connected with the 24 pin does turns on, it's when I include the 8 pin connector that fails and won't light up. I tried this with and without two working CPUs and two working PSUS and the result is the same. The system altogether, including mobo were brand new and bought them in December 2019. The only problem that I had recently was a faulty RAM that was replaced about 2 months ago and It was working without issues. Does it have a fix? Is the Mobo dead? How can I prevent this in the future? Btw MSI B450 Tomahawk Max Any answers will be appreciated, thank you!
You checked each part in another setup and swapped a different power supply. That suggests the motherboard might be faulty. Likely it's just a matter of chance—defects occur randomly. It makes sense, though it’s rare. Have you tried resetting the CMOS or shorting the power pins instead of using the power switch? Also, did you test your RAM in the other system, or used a different one?
I managed to reset the CMOS and used another battery, though I didn't short the pins thinking it would make a big difference—I'll give it another shot tomorrow. Yes, I've tested various RAM options in my system (the one that caused the problem before) and tried them on other systems (today and yesterday). That was a previous issue with a defective unit that's now just gathering dust. I plan to contact MSI to check if they can provide a solution, even though it's outside warranty. Thanks for your reply!