Lenovo 776254U Service Guide - Page 27
Message, Solution, If one of the following error code messages is displayed on the screen, have
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Solving computer problems Message Cannot boot from any device. Solution Check the status of the device which you want to boot from. Device not found Check the device you want to boot from. Device error Check the device you want to boot from. No valid operating system Check that the operating system has no failure and is installed correctly. Excluded from boot order Open the BIOS Setup Utility and add the device to boot order. If one of the following error code messages is displayed on the screen, have the computer serviced: 0175: Bad CRC1, stop POST task 0177: Bad SVP data, stop POST task. Checksum of the supervisor password in the EEPROM is not correct. 0187: EAIA data access error 0188: Invalid RFID serialization information area 0189: Invalid RFID configuration information area 0192: System Security - Embedded Security hardware tamper detected. 0260: System timer error 0270: Real time clock error 02D0: System cache error 02F4: EISA CMOS not writable 02F5: DMA test failed 02F6: Software NMI failed 02F7: Fail-safe timer NMI failed Fan error Thermal sensing error Chapter 3. Solving computer problems 17