[SOLVED] Laptop shuts down, shows cmos error 502

[RoopeshBabu]

Hi guys,
I bought my laptop in 2018. Its not old per say.
It works fine as long as I am using Chrome/Word anything less intensive.
If I like play games or edit videos it shuts down and throws this error.
My laptop used to work fine before. This has been the issue in the past few months.
I have checked and I feel it is the CMOS battery and I have to get it replaced, but due to the lockdown all places are closed.
Is there any other way to fix it? Or is it not the battery?
The time on my laptop is always off by a couple of minutes.

https://imgur.com/rvP8XtY

View: https://imgur.com/rvP8XtY

 

[lga1156_ftw]

What kinda of temperatures are you getting in games? This issue most likely not caused by cmos battery, have you tested your charger gives right voltage, and tested another charger?

First try remove battery and power cable, press power button continuously for 30sec, this is hard reset.

Might be too corrupt bios or failing cmos battery (probably the first one since low voltage on bttery dont cause this kind of issues usually)

If hard reset fails, check your laptops exact model number from sticker and download the newest bios for it from HP site, plugin your battery for this and make sure its atleast 50% , keep power cable on, close every tab and program like discord or browsers / games and disable antivirus until next boot, and continue with the update.

If this also fails you can disassembly until you see cmos round battery, take it out for 15minutes and put back in. also check if it has over 3 volts, if yes no need to replace if not then replace.

Later steps include reprogramming bios chip

 

[RoopeshBabu]

What kinda of temperatures are you getting in games? This issue most likely not caused by cmos battery, have you tested your charger gives right voltage, and tested another charger?

First try remove battery and power cable, press power button continuously for 30sec, this is hard reset.

Might be too corrupt bios or failing cmos battery (probably the first one since low voltage on bttery dont cause this kind of issues usually)

If hard reset fails, check your laptops exact model number from sticker and download the newest bios for it from HP site, plugin your battery for this and make sure its atleast 50% , keep power cable on and disable antivirus until next boot, close all tabs and continue with the update.

If this also fails you can disassembly until you see cmos round battery, take it out for 15minutes and put back in. also check if it has over 3 volts, if yes no need to replace if not then replace.

Later steps include reprogramming bios chip

I get temps around 70 degree celsius I think
Whenever this happens and i get the screen from screenshot. I just press enter and it works fine. I start playing my game again then it crashes. I will try updating the bios as you said.
How hard is disassembly? Do I have to only remove panels or some cabels as well?

 

[lga1156_ftw]

What is exact laptop model. From back of laptop sticker. Need this info so i can help with disassembly, do not take it apart if you are under warranty just contact HP.

 

[RoopeshBabu]

What is exact laptop model. From back of laptop sticker. Need this info so i can help with disassembly, do not take it apart if you are under warranty just contact HP.

Its hp15g-dr0006tx
I disassembled it, it was quite easy. Except the cmos battery is below the motherboard. So I need to remove hdd and battery also which is risky

 

[lga1156_ftw]

Do not do anything before you disconnect power cable the battery connector from the motherboard!

 

[lga1156_ftw]

Look my guide on post #2 how to update bios


Check what bios version you have using this link , msinfo method : https://www.howtogeek.com/196916/how-to-check-your-bios-version-and-update-it/

Here you can see latest version on HP site is " F.24 Rev.A " https://support.hp.com/us-en/drivers/selfservice/hp-15g-dr0000-laptop-pc/20395833

 

[lga1156_ftw]

For temperature monitoring you can download aida64 trial, open system stability test. Select cpu/processor and graphics/gpu for the stress test. Start it and monitor cpu core and graphics card temperatures, you should crash pretty fast if you see temps reaching 100c

EDIT: You can also test stability of your harddrive with the same test, just mark "local discs". Test also memory individually to see if you get crashes.

 

[RoopeshBabu]

For temperature monitoring you can download aida64 trial, open system stability test. Select cpu/processor and graphics/gpu for the stress test. Start it and monitor cpu core and graphics card temperatures, you should crash pretty fast if you see temps reaching 100c

EDIT: You can also test stability of your harddrive with the same test, just mark "local discs". Test also memory individually to see if you get crashes.

Temperatures are normal, BIOS is up to date.
It can run for long durations as long as I don't play games or edit videos

 

[lga1156_ftw]

https://www.howtogeek.com/222730/how-to-find-out-why-your-windows-pc-crashed-or-froze/

What error codes it gives you (bsod code)? If you dont get blue screen check with event viewer what is the bugcheck

 

[lga1156_ftw]

Do you run it on power cable + battery when the issue happens or only power cable? If you run on battery only that might cause it (failing battery and no power from cable)

You can also test other way around, remove battery completely , run the laptop only on power cable and recheck if problem occurs.

edit: Also what storage you have, model and manufactor?