-
×InformationNeed Windows 11 help?Check documents on compatibility, FAQs, upgrade information and available fixes.
Windows 11 Support Center. -
-
×InformationNeed Windows 11 help?Check documents on compatibility, FAQs, upgrade information and available fixes.
Windows 11 Support Center. -
- HP Community
- Desktops
- Desktop Hardware and Upgrade Questions
- Cmos reset 502 and shuts down

Create an account on the HP Community to personalize your profile and ask a question
11-22-2021 07:13 PM
When I start my computer, I get warning screen with CMOS reset(502). It than loads up windows fine. After about 5 mins, the computer completely shuts down. I cant restart the computer unless I unplug it for about thirty 30 mins first. I have tried resetting the bios to default settings, but didnt change anything. When I try to run diagnostics, it shuts down before it can complete any. I tried replacing the a/c adapter, and tried different outlets in the house, and checked voltage from outlets. I am having no luck. I have only had the computer since march 2020, but the warranty is expired. Please help!
11-30-2021 07:39 PM
This sounds like a thermal problem. Something needs to cool off before it can be turned back on. Get access to the insides and carefully feel some of the chips / hardware for high temperature.
A CMOS error that always shows up could indicated a bad battery. You might test the battery or replace it. See if the battery is hot to the touch.
HTH
Good Luck!
Thank you for using HP products and posting to the community.
I am a community volunteer and do not work for HP. If you find
this post useful click the Yes button. If I helped solve your
problem please mark this as a solution so others can find it