Device fails to power up unexpectedly.
Device fails to power up unexpectedly.
Hello, I powered up my PC this morning and upon returning, noticed it shut down abruptly and wouldn’t restart. I verified all connections are secure, tested various power outlets, flipped the PSU on and off several times, yet it still wouldn’t come back on. Occasionally, when I switched the PSU back on, a flashing light appeared. I found another discussion with the same issue, which suggests the motherboard might be faulty. I’m considering reaching out here to explore alternatives before spending around $300 on a full rebuild, especially since my machine has been heavily used. Previously, I’d run AFK money farms on Rainbow Six, leaving it on overnight for reputation gains, plus regular use for school or gaming—hours add up, especially given how long I’ve owned this PC since the quarantine. I’ll share my current specs shortly. All listed details are within the last two years except for one hard drive and my graphics card. The GPU has been with me since early 2018, and the hard drive about six months ago. CPU cooler is NZXT Kraken X62, PSU is Corsair RM750i (gold rated), motherboard is Z390 Aorus Master, RAM is 16GB HyperX Vengeance 3200MHz, storage includes a 1TB SSD, a 1TB HDD, and a 2TB HDD.
I restored the BIOS first. That’s the usual clue for a failing power supply unit. Suggest checking or swapping it out before making major changes.
If you can't get the PC up, try resetting the power supply connection again. After flipping the PSU switch back on, the motherboard may flash briefly, which can sometimes help. If that doesn’t work, you might need to reset the system more thoroughly or consult a technician.
Disconnect the power supply from the wall. Take out the CMOS battery from the motherboard—usually a silver circular cell beneath the GPU or near the lower part of the PCIe slot—and let it rest for about five minutes, or keep the power button pressed for 20 to 30 seconds. Reinsert the battery and attempt to restart the system.