Dell 990 Decreasing available memory, Diskette read failure, Memory allocation error

Controller has failed	84
Data error	84
Decreasing available memory	85
Diskette drive 0 seek failure	85
Diskette read failure	85
Diskette subsystem reset failed	85
Gate A20 failure	85
General failure	85
Hard-disk drive configuration error	85
Hard-disk drive controller failure	86
Hard-disk drive failure	86
Hard-disk drive read failure	86
Invalid configuration information-please run SETUP program	86
Invalid Memory configuration, please populate DIMM1	86
Keyboard failure	86
Memory address line failure at address, read value expecting value	86
Memory allocation error	87
Memory data line failure at address, read value expecting value	87
Memory double word logic failure at address, read value expecting value	87
Memory odd/even logic failure at address, read value expecting value	87
Memory write/read failure at address, read value expecting value	87
Memory size in CMOS invalid	87
Memory tests terminated by keystroke	88
No boot device available	88
No boot sector on hard-disk drive	88
No timer tick interrupt	88
Non-system disk or disk error	88
Not a boot diskette	88
Plug and play configuration error	88
Read fault	89
Requested sector not found	89
Reset failed	89
Sector not found	89
Seek error	89