I'd unplug the HDD so the next time you can get into the BIOS. I had a similar issue at the shop and the causes were varied. One time it was the owner had reused the RAM and it turned out to be incompatible. The next time it was the out of date BIOS and the next I had to load the BIOS defaults then reinstall Windows due to the BIOS changes.
And let's not forget about a not common other setting. Here's a link. https://www.google.com/search?q=windows+10+disable+faststart
I don't see where you tried Safe Mode so to save yourself time, try Safe Mode and change fast start.
Hi guys,
I recently changed the motherboard of my computer as the previous one was fried. After installing windows everything seemed to work normal. Although, the PSU was not sufficient to accommodate the computer during heavy use.
Following this I changed my PSU to a Coolermaster Thunder 450w.
When I assembled everything, the computer fails to boot. It initially starts up the bios and after I proceed to boot windows, it tells me that there is an error starting windows and asks me to restart. After that the computer repeatedly powers on and off and there is no display on the screen. The keyboard also stops receiving power as no LED lights are on and I cannot enter BIOS.
What should I do?
My specs are
Motherboard: msi h61m-p31/w8
GPU: Nvidia GTX 555
PSU: CoolerMaster Thunder 450w
Note: I have already tried resetting the CMOS and I can enter BIOS for the first time after that but then it enters the same state where the computer is running with power but completely powers off with no display.

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