Crap quality PSU. Not worth the money, at all.
Holy hell...
😱
Gigabyte GP-P750GM, is
far worse of a PSU, than your Thermaltake PSU was. Since it will reliably have catastrophic failure, while killing other hardware as well.
GamersNexus covered it well when it was 1st discovered, a year ago, just when you bought your time bomb:
View: https://www.youtube.com/watch?v=aACtT_rzToI
Follow-up video too:
View: https://www.youtube.com/watch?v=7JmPUr-BeEM
And 3rd video too (clearly showing how bad/serious this thing is):
View: https://www.youtube.com/watch?v=Xts3pvbcFos
Heck, Gigabyte even made a recall of those time bombs,
article:
https://www.tomshardware.com/news/gigabyte-full-refund-product-exchange-explosive-psus
--
What to do next?
- Open up your PC, rip the PSU and all of it's cables out and throw it away. (Or refund it to Gigabyte, link in TH article above.)
- Buy 2nd, good quality PSU. E.g Seasonic Focus/PRIME or Corsair RM/RMi/RMx/HX/HXi/AX/AXi.
- Hook up the new PSU and cross your fingers that anything else didn't die.
Now, i'm quite sure that besides the PSU, you will have other dead hardware inside the PC as well. What exactly? Hard to tell, but you can consider everything that was connected to that time bomb, to be toast. MoBo is usually 1st to go, closely followed by GPU (like GamersNexus, who lost their RTX 3080).