Acer G901 manual 216

216		Appendix E: Codes and error messages
CP	Beeps	Reason
6A		Display external cache size
6B		Load custom defaults if required
6C		Display shadow message
6E		Display non-disposable segments
70		Display error messages
72		Check for configuration errors
74		Test real-time clock
76		Check for keyboard errors
7A		Test for key lock on
7D		Intelligent system monitoring
7E		Test coprocessor if present
82		Detect and install external RS232 ports
85		Initialize PC-compatible PnP ISA devices
86		Reinitialize onboard I/O ports
88		Initialize BIOS data area
8A		Initialize extended BIOS data area
8C		Initialize floppy controller
90		Initialize hard disk controller
91		Initialize local bus hard disk controller
92		Jump to UserPatch2
93		Build MPTABLE for multi-processor boards
94		Disable A20 address line
95		Install CD-ROM for boot