Lenovo ThinkPad T500 (Hebrew) Service and Troubleshooting Guide - Page 25

‫‪ 0251: System CMOS CMOS ‫‪ checksum bad BIOS ‫‪ 0271: Date and time ‫‪ error BIOS‬‬ ‫‪ 0280: Previous boot ‫‪ incomplete BIOS‬‬ Exit Saving Changes Restart‬‬ F10‬‬ ‫‪ 1802: Unauthorized Mini-PCI network card is plugged in - Power off and remove the miniPCI network card.‬‬ ‫‪ 1803: Unauthorized Daughter card daughter card is plugged in - Power off and remove the daughter card.‬‬ ‫‪ 1804: Unauthorized WAN WAN card is plugged in - Power off and remove the WAN card.‬‬ ‫‪ 1805: Unauthorized USB Wireless USB card is plugged in - Power off and remove the Wireless USB card.‬‬ ‫‪ 1830: Invalid memory configuration‬‬‫‪Power off and install a memory module to Slot-0 or the lower slot.‬‬ 3 17‬‬