When the lights stopped working, first the fans failed, then the CPU, and finally the motherboard.
When the lights stopped working, first the fans failed, then the CPU, and finally the motherboard.
The situation clearly indicates the issue.
My son's computer, which is quite old, stopped working completely—no lights, no fans.
I replaced the power supply because I expected something basic to function, but it didn’t.
After some investigation, I suspected a problem with the CPU, so I purchased a compatible replacement, yet it still failed.
My brother upgraded his own system with a new motherboard that matches the CPU, but it didn’t work either.
I considered that the RAM might not be compatible with the new motherboard, so I swapped the RAM from another computer (which is listed as compatible) and still faced the same problem.
Now I’m uncertain. He seems to have a brand-new computer, yet it’s not working.
I carefully swapped the CPU and motherboards on a linoleum floor, making sure to touch the case first to avoid static, and verified that the CMOS reset jumper wasn’t installed.
I also tried using a different power cord and switched to another power outlet.
It seems an old component might have failed, but I’m unsure which one or how to test the new power supply.
Help?
CPU: AMD Ryzen 5 5600
Motherboard: ASRock B550M Pro4 rev 1.04
Power supply: Corsair CX750M
Graphics: EVGA GForce GTX 1050ti
RAM: Corsair DDR4 3000mhz (possibly not compatible, but worked with 3600mhz on another system)
Other computer restarted and operated normally after I reinstalled its RAM, ensuring it was functioning properly.
There are compatibility concerns regarding the BIOS and the new motherboard. The CPU requires a 2.30 revision, but it seems there might be an issue with booting properly rather than a complete power failure. Adjust the front panel connector and short the pins on the motherboard using a screwdriver. Have you been using the modular cables for the new power supply, or did you keep the old ones and attempted to connect them with the new one? What was the previous power supply model?
Yeah, the motherboard would need to boot into the BIOS first before I could flash it. I removed the CPU and checked for any lights, but nothing happened. Jumping the power connections didn’t help (the case is now fully disconnected).
I verified with another computer and even when powered off, some lights on the motherboard appeared as long as the power supply was active. This device seems completely dead.
I used the new cables with the new power supply, except for the one for the hard drive. That shouldn’t cause the problem, but it does suggest there might not be a hard drive installed. The old power supply was an EVGA 750
I don't know for sure if the pinout for Corsair and EVGA drives are identical, even for the same type of drive. It's not recommended to use cables from another device unless they are explicitly the same. Corsair uses "type #" to specify which cable that particular model requires.
I never would have imagined this unless I had seen it. Disconnected both power and SATA, it started booting from BIOS. Used the new SATA from the motherboard and the power cable from the PSU, but it's still trying to launch Windows. One of the cables seems faulty, probably shorting to ground? That's the only thing that comes to mind. I'm planning to reassemble the old parts with a different drive (I have one) and test if they function. Wouldn't that be interesting?