No, your CPU is not dead. It appears to be functioning normally.
No, your CPU is not dead. It appears to be functioning normally.
Hello, my first custom-built PC was made about a month ago and it functioned properly. Now the PSU isn't turning on and produces a clicking noise. I tried a paper clip test—it briefly activated the fan before shutting off. Many attempts to plug it in without certain parts resulted in no power. However, when I powered it up without the 8-pin CPU cable, the system started working. I considered replacing the CPU and using an 8-pin cable, but it still worked. I’m thinking about taking it to warranty, though I don’t want to replace a CPU that might be fine. The CPU appears undamaged, and the motherboard has no bent pins. The specs are: CPU – Intel Core i5 9400F, Motherboard – Z390 by Gigabyte (I know, I didn’t realize I could flash BIOS via USB), GPU – GTX 1660 Ti, PSU – Corsair RM 750x, RAM – GoodRAM IDRM DDR4 16GB at 2400MHz (two modules).
It seems you might have damaged the motherboard by leaving the BIOS in auto profile longer than intended. You weren’t aware that auto mode increases voltage, and using a tower heatsink could have contributed. You may need to replace the motherboard, but the anti-static bag prevents shipping it.
You can purchase them when necessary. Consider checking eBay or other sellers, or visit a nearby computer shop—they might still have some unused units from previous components.