Lenovo ThinkPad 560E TP 560Z Technical Reference Manual - Page 41
Diagnostic Status Byte X, Shutdown Status Byte X, CMOS RAM Configuration, Bit 7, Bits 1
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CMOS RAM Configuration Figure 2-20 shows the bit definitions for the CMOS RAM configuration bytes. Diagnostic Status Byte (X'00E') Bit Function 7 Real-time clock power 6 Configuration record and checksum status 5 Incorrect configuration 4 Memory size mismatch 3 Hard disk controller/drive C initialization status 2 Time status indicator 1, 0 Reserved Figure 2-20. Diagnostic Status Byte (X'00E') Bit 7 If set to 1, this bit indicates that the real-time clock has lost power. Bit 6 If set to 1, this bit indicates that the checksum is incorrect. Bit 5 This bit indicates the results of a power-on check of the equipment byte (X'014'). If set to 1, this bit indicates that the configuration information is incorrect. Bit 4 When set to 1, this bit indicates that the memory size does not match the configuration information. Bit 3 When set to 1, this bit indicates that the controller or hard disk drive failed initialization. Bit 2 When set to 1, this bit indicates that the time is invalid. Bits 1, 0 These bits are reserved. Shutdown Status Byte (X'00F'): This byte is defined by the power-on diagnostic programs. ThinkPad 560Z System Board 2-23