Lenovo ThinkPad L421 (Simplified Chinese) User Guide - Page 160
Machine Type and Serial, 按 F1 键进入 BIOS Setup 菜单。按
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0251 0254 0260 0270 0271 0280 02D0 02D2 02F0 1802 1804 无 2200 无 2201 无 144 错误消息 解决方案 0251: System CMOS checksum bad - Default configuration used(0251: 系统 CMOS 系统 CMOS BIOS Setup Utility 0254: System NV7 Volume checksum bad - Default configuration used(0254: 系统 NV7 CMOS 0260: System timer error(0260 0270: Real time clock error(0270 0271: Check date and time settings (0271 按 F1 键进入 BIOS Setup F9 F10 0280: Previous boot incomplete Default configuration used(0280 BIOS Setup Utility。 02D0: System cache error - Cache disabled(02D0 CPU 变量 MTRR 02F0: CPU ID: CPU CPU。 1802: Unauthorized network card is plugged in - Power off and remove the miniPCI network card.(1802 PCI PCI Express Unauthorized WAN card is plugged in - Power off and remove the WAN card System Configuration Data Read 按 F1 键进入 BIOS Setup Error F9 F10 退出。 2200: Machine Type and Serial Number are invalid.(2200 2201: Machine UUID is invalid. (2201: 机器 UUID 机器 UUID