PC Keeps Restarting

MarkWright · March 18, 2020

Hi everyone

Recently my PC is running into an issue that once I press the power button, the PC turns on but it doesn't even reach BIOS screen, and keeps restarting itself.

I did some research and found out that removing CMOS battery would solve the issue, and it did till next time I tried turning on the PC and same issue happened again. Then I replaced the CMOS battery with a new one, and same issue happened again.

Since I was tired of opening and closing the PC tower, then I decided to just turn off the power supply, let it sit for 5 minutes, and turned it back on again. To my surprise the PC started up normally again even though I did not touch the CMOS battery anymore.

What could be the reason this issue is happening? and why does turning the power supply off and on makes it boot up?!

BTW, I have an old PC with following specs:

1. Motherboard: GA-P67A-UD4-B3 (rev. 1.1)

2. Processor: Intel i7-2600K

3. RAM: Mushkin 8GB

4. Graphics card: GTX 780

5. Power Supply: 750W

6. Operating system: windows 10 64-bit

Thanks

Mark

Jwalbrecht2000 · March 18, 2020

It could be that the components (namely the capacitors) just needed to discharge. There's a reason people always ask if you've tried turning it off and on again, and this is a prime example.

Also, welcome to the forums!

MarkWright · March 19, 2020

Thanks for your response.

I have had current PC for almost 10 years now, and thinking of upgrading it. Should I post a new thread, or is it OK to ask for recommendations on this thread?

Kisai · March 19, 2020

8 hours ago, MarkWright said:

Hi everyone

Recently my PC is running into an issue that once I press the power button, the PC turns on but it doesn't even reach BIOS screen, and keeps restarting itself.

I did some research and found out that removing CMOS battery would solve the issue, and it did till next time I tried turning on the PC and same issue happened again. Then I replaced the CMOS battery with a new one, and same issue happened again.

Since I was tired of opening and closing the PC tower, then I decided to just turn off the power supply, let it sit for 5 minutes, and turned it back on again. To my surprise the PC started up normally again even though I did not touch the CMOS battery anymore.

What could be the reason this issue is happening? and why does turning the power supply off and on makes it boot up?!

BTW, I have an old PC with following specs:

1. Motherboard: GA-P67A-UD4-B3 (rev. 1.1)

2. Processor: Intel i7-2600K

3. RAM: Mushkin 8GB

4. Graphics card: GTX 780

5. Power Supply: 750W

6. Operating system: windows 10 64-bit

Thanks

Mark

A little old, but I see no reason for a malfunction. Your system might just be doing the same thing mine is doing (which is a haswell system) where it gets stuck at the BIOS boot logo and needs to be power cycled instead of merely restarted. This only started happening in the last few months. What I'd normally do/suggest is reinstall the OS, because something is making the hardware flip out.

Now as for what causes it, my long shot guess is the iGPU. I've had some Dell systems do this, where the bios had to be told to run in Multi-gpu mode in order to boot with only the nVidia card, not the iGPU. The "auto" mode wouldn't turn the iGPU off when the machines were upgraded to a certain BIOS level for Win10. The other possibility is the power management is flipping out and the BIOS thinks it's supposed to be doing a hibernate restore, and there's nothing to restore.

Personally, I'd just start turning it off instead of sleeping it if it's doing this.