The new computer fails to power on completely when you press the power button, though the BIOS functions correctly.
The new computer fails to power on completely when you press the power button, though the BIOS functions correctly.
Details: Ryzen 5 5600 MSI B550- A PRO ATX Corsair vengeance 32 GB 2*16 3600 teamgroup 2 tb M.2 PCIe 3.0 MSI Mech 2x Radeon RX 6700 XT NZXT H510 ATX Corsair 750rm 80+ gold. I’ve been testing extensively, checking every cable for issues like CMOS problems. I noticed the BIOS needed a flash. After updating, everything booted up correctly with RGB lights and the BIOS flashing properly. The CPU started up fine after removing it, installed the cooler, pressed the power button, but nothing happened—no lighting at all. It looks like the power switch pins might be damaged or the board isn’t responding even when handled. The CPU itself seems intact, no bent pins or missing components. Any advice would be greatly appreciated.
The Mobo isn't activating when you jump the PWR +/- pins—it seems the connections are damaged or the trace is severed. I’d consider sending it back for repair if you confirm the pin placement is correct. When you say the motherboard doesn’t start, it means there are no debug indicators or fans running. You managed to flash the BIOS, but maybe the power cables aren’t fully connected, or the CPU and Mobo aren’t properly seated. Double-check the pin configuration on the Mobo before trying again.
I've verified everything several times already. Trying to short the pins isn't helping either. I'm hoping the motherboard is functioning properly since we managed to flash it, but I feel like I might have to give up now. It's possible the CPU could still be the issue—though it's unlikely to start at all if it's broken.
Just try bypassing the components. For a quick reset, remove the CMOS battery, unplug the PC from the outlet, take a coffee, eat lunch, or do something else, then let it sit for about 30 minutes to drain any residual power. After that, reinsert the battery, power cable, and 24-pin connector, connect the PSU switch, and use the jumper to check if the board powers on.
I've been trying for three days to get this thing running today. I noticed the flash button functions, which confirmed it's properly connected. Also, it doesn't matter whether the CPU is on or off—it won't power up when you short the two power pins in the top right row, 3rd and 4th.