Compaq ML370 manual Error Code

Diagnostics and Troubleshooting 3-11

Table 3-2

POST Error Messages continued

Error Code	Audible Beeps	Probable Source of Problem		Recommended Action
ZZ-301 - Keyboard	None	Keyboard failure. (ZZ represents	1.	A key is stuck. Try to free
Error		the Keyboard Scan Code.)		it.
			2.	Replace the keyboard.
303 - Keyboard	None	System board, keyboard, or	1.	Run Diagnostics.
Controller Error		mouse controller failure	2.	Replace failed assembly
				as indicated.
304 - Keyboard or	None	Keyboard, keyboard cable, or	1.	Make sure the keyboard is
System Unit Error		system board failure		attached.
			2.	Run Diagnostics to
				determine which is in
				error.
			3.	Replace the part indicated.
40X - Parallel Port X	2S	Both external and internal ports	Run the System Configuration
Address Assignment		are assigned to parallel port X.	Utility and correct.
Conflict
601 - Diskette	None	Diskette controller circuitry	1.	Make sure the diskette
Controller Error		failure		drive cables are attached.
			2.	Replace the diskette drive
				and/or cable.
			3.	Replace the system board.
605 - Diskette Drive	2S	Mismatch in drive type	Run the System Configuration
Type Error			Utility to set diskette type
			correctly.
1151 - Com Port 1	2S	Both external and internal serial	Run the System Configuration
Address Assignment		ports are assigned to COM1.	Utility and correct.
Conflict
1152 - Com	2S	Both external and internal serial	Run the System Configuration
Port 2, 3,		ports are assigned to COM2,	Utility and correct.
or 4 Address		COM3 or COM4.
Assignment Conflict
1610 - Temperature	2S	Ambient system temperature too	Check fan in system
violation detected.		hot	environment.
Waiting for system to
cool
1611 - Fan failure	2S	Required fan not installed or	Check fans.
detected		spinning

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