Error detected in HP laptop's CMOS storage.
Error detected in HP laptop's CMOS storage.
Hello, I own a 13-4103dx laptop (Windows 10 64-bit) that rarely starts up. When it does, I encounter a CMOS checksum error. After some troubleshooting, I disassembled the machine to check for the CMOS or RTC battery, but couldn’t locate either. I’ve inspected both sides of the motherboard and searched under various components like speakers, yet there’s no space for a battery. It worked once about a week ago after I powered it on, showing a CMOS checksum error screen that never appears normally. The screen displayed 80 percent battery, but it shut down immediately when unplugged. Although the date and time seemed incorrect based on Google, they matched what I saw on the machine itself—possibly due to a Windows update before I checked. I changed the battery around a year ago, but the issue only happened when it was under 80 percent. It’s unclear if that matters. Later, I plan to try booting without the battery, and I’m seeking advice on how to locate or replace the CMOS/RTCC battery if needed. Thanks!
It ended up restarting several times due to a checksum issue, then launching into Windows without power, but trying to boot into BIOS now doesn’t work even without a battery. Ugh.