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Chapter 4 System Support
Compaq Deskpro EN Series of Personal Computers
Desktop and Minitower Form Factors
Third Edition - September 1998
4-38
Configuration Byte 35h, APM Status Flags
Default Value = 11h
Bit Function
7..6 Power Conservation State:
00 = Ready
01 = Standby
10 = Suspend
11 = Off
5,4 Reserved
3 32-bit Connection:
0 = Disconnected, 1 = Connected
2 16-bit Connection
0 = Disconnected, 1 = Connected
1 Real Mode Connection
0 = Disconnected, 1 = Connected
0 Power Management Enable:
0 = Disabled
1 = Enabled
Configuration Byte 36h, ECC POST Test Single Bit Errors
Default Value = 01h
Bit Function
7 Row 7 Error Detect
6 Row 6 Error Detect
5 Row 5 Error Detect
4 Row 4 Error Detect
3 Row 3 Error Detect
2 Row 2 Error Detect
1 Row 1 Error Detect
0 Row 0 Error Detect
0 = No single bit error detected.
1 = Single bit error detected.
Configuration Byte 37h-3Fh, Power-On Password
These eight locations hold the power-on password.
Configuration Byte 40h, Miscellaneous Disk Data
Configuration Bytes 41h-44h, Hood Removal Time Stamp
These four bytes record the time at which the hood of the system was removed:
Byte 41h, month & day
Byte 42h, year and month
Byte 43h, minutes and seconds
Byte 44h, removal flag and minutes