My old (2009) PC with an ASUS P5Q SE Plus motherboard has normally been up and running for years, acting as a server.
In the past, when residential power outages occur, I have had no problem powering the machine up again.
A few days ago, we had a street-wide power outage for about 8 hours, and when the power came back again, I could not power up the PC.
The motherboard's green power LED is on, but nothing happens when I press the front panel power button. No fans or lights come on either.
There are no beeps from the speaker to signal any BIOS POST faults.
The PSU (Cooler Master 650W Bronze) passes the test suggested by the vendor (https://landing.coolermaster.com/faq/how-to-test-a-power-supply/) and disconnected from the mobo - this causes the fans, lights and peripherals to fire up ok suggesting that the PSU is ok.
I've disconnected the power cable from the PSU, removed the CMOS battery and used the "clear CMOS" jumper. I'm going to wait a decent amount of time to see if that fixes it.
I'm now starting to worry that the AC power conditions spiked when the residential power came back up. Has anyone any thoughts or have experienced this before?
Thanks in advance for any advice.
Regards,
Wayne
In the past, when residential power outages occur, I have had no problem powering the machine up again.
A few days ago, we had a street-wide power outage for about 8 hours, and when the power came back again, I could not power up the PC.
The motherboard's green power LED is on, but nothing happens when I press the front panel power button. No fans or lights come on either.
There are no beeps from the speaker to signal any BIOS POST faults.
The PSU (Cooler Master 650W Bronze) passes the test suggested by the vendor (https://landing.coolermaster.com/faq/how-to-test-a-power-supply/) and disconnected from the mobo - this causes the fans, lights and peripherals to fire up ok suggesting that the PSU is ok.
I've disconnected the power cable from the PSU, removed the CMOS battery and used the "clear CMOS" jumper. I'm going to wait a decent amount of time to see if that fixes it.
I'm now starting to worry that the AC power conditions spiked when the residential power came back up. Has anyone any thoughts or have experienced this before?
Thanks in advance for any advice.
Regards,
Wayne