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Girlfriend's computer won't boot after power loss (WEIRD)

Jax Omen

Jax Omen

Golden Member
So my girlfriend's PC has the weirdest quirk. After power loss (power outage, etc), she is unable to boot up her computer... until we unplug the main 20+4pin motherboard power plug and plug it back in. Then it boots up like nothing is wrong. This behavior is consistent and reliable and we have no other issues whatsoever.

What the hell can possibly cause this? I've googled and been unable to find anything like it.
 
Does it do the same thing if you unplug the PSU from the wall, or do you have to disconnect it from the motherboard?

It could be something is on the fritz (PSU or motherboard), and the capicators need to be discharged for some reason.

How old is the system, and if there are that many power outages where you have noticed the need to disconnect the cable, why is she not using a UPS?

Power outages, spikes, and brown-outs are tough on electronics, and cause system issues.
 
First off, have you tried unplugging the power supply and hitting the power button? That should be all that is needed to discharge power from the board (which is basically the same thing you are doing by unplugging the connector).

Second, there are many different steps in the boot process. What exactly does the computer do when you hit the power button after one of these incidents.

Finally, one simple solution, especially if power loss is common when she is, would be to invest in a battery backup.
 
To add to what Ketchup said, the power supply is the culprit but there is nothing wrong with it. I experience this too but I just remove the plug from the back of the computer (or you could unplug from the wall if that is easier) for a minute or two, put it back in and it will then fire up. If you don't wait long enough, it will still not start up.

I have experienced this over the course of many years with various power supplies and computers. It's some form of protection built into the power supply from surges, etc.

And yes, a UPS will remedy the issue.
 
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