IBM 6646, 6645, 6644 manual Error Symptoms List

Table 2-3 Error Symptoms List (Continued)

NOTE: To diagnose a problem, first find the error symptom in the left column. If directed to a check procedure, replace the FRU indicated in the check procedure. If no check procedure is indicated, the first Action/ FRU listed in right column is the most likely cause.

Error Symptoms	Action/FRU
CD-ROM drive cannot load	See “CD-ROM Emergency-
or eject when the system is	exit <option 1>” on page 114
turned on and its eject	and “CD-ROM Emergency-
button is pressed and held.	exit <option 2>” on page
	114.
	Disconnect all cables from
	CD-ROM drive except
	power cable, then press
	eject button to try to unload
	the disk.
	CD-ROM drive power.
	CD-ROM drive
CD-ROM drive does not	CD may have dirt or foreign
read and there are no error	material on it. Check with a
codes or messages are	known good disc.
displayed.	Ensure that the CD-ROM
	driver is installed properly.
	See “CD-ROM Drive” on
	page 62.
	CD-ROM drive.
CD-ROM drive can play	Ensure that the headphone
audio CD but no sound	jack of the CD-ROM has an
output.	output, then check if the
	audio cable from CD-ROM
	drive to system board CN12
	is connected properly. See
	“System Board Jumpers
	and Connectors” on page
	105.
	Turn up the sound volume.
	Speaker power/connection/
	cable.
	CD-ROM drive.

Check Procedures 51