电脑开机报0251 system cmos checksum bad 0271:check date and time set_0251:system cmos checksum bad-CSDN博客
CMOS Checksum Bad - Quick Easy Fix 1 - YouTube
Lenovo手提電腦維修]Lenovo X1 Carbon 開機顯示0251:System CMOS Checksum bad-Default configuration used. Real Time Clock Error-Check Date and Time settings Press Esc to continue or F1 to enter Setup.
How to Fix a CMOS Checksum Error
Résoudre CMOS checksum error au démarrage du PC - malekal.com