HP Kayak XU 04xx HP Kayak XU PC Workstation Technical Reference Manual Hardwar - Page 81

5 Power-On Self-Test and Error Messages Beep Codes Beep Codes If a terminal error occurs during POST, the system issues a beep code before attempting to display the error in the upper left corner of the screen. Beep codes are useful for identifying the error when the system is unable to display the error message. Beep Pattern Beep Numeric Code Code Description - -- -- --- 1-2-2-3 16h BIOS ROM check-sum failure - --- - - 1-3-1-1 20h DRAM refresh test failure 1-3-1-3 1-3-4-1 1-3-4-3 22h 8742 Keyboard controller test failure 2Ch RAM failure on address line xxxx1 2Eh RAM failure on data bits xxxx1 of low byte of memory bus -- - -- --- 2-1-2-3 46h ROM copyright notice check failure -- -- --- - 2-2-3-1 58h Unexpected interrupts test failure - -- 1-2 98h Video configuration failure or option ROMs check-sum failure 4-4-2-4 F7 Crisis Recovery Failure (only if switch 10 is down). - 1 B4h This does not indicate an error. There is one short beep before system startup. 1.If the BIOS detects error 2C or 2E (base 512K RAM error), it displays an additional word-bitmap (xxxx) indicating the address line or bits that failed. For example, "2C 0002" means address line 1 (bit one set) has failed. "2E 1020" means data bits 12 and 5 (bits 12 and 5 set) have failed in the lower 16 bits. 73