Error Symptoms List (Aptiva 2170/71/72/74 - SL-A)

Table 2-3 Error Symptoms List - Aptiva 2170/71/72/74 - SL-A

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.

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Error Symptoms	Action/FRU
Processor / Processor Fan
NOTE: Normally, the processor fan should be operative, and the processor clock
setting should be exactly set to match its speed requirement before diagnosing any processor problems.
Processor fan does not run but	1. Ensure that the system is not in power saving mode and the
power supply fan runs.	'Stop CPU clock in sleep state' is not set to Yes.
	See 'Power Management' in Introduction.
	2. With the system power on, measure the voltage of processor fan connector
	FN2 for 2170/2171/2172.
	Its reading should be +12Vdc.
	See 'Machine Type 2170 System Board Jumpers and Connectors' and
	See 'Machine Type 2171 and 2172 System Board Jumpers and Connectors'.
	See 'Machine Type 2174 System Board Jumpers and Connectors'.
	3. Processor fan.
	4. System board.
Processor test failed.	1. Processor.
	2. System board.
System Board and Memory
NOTE: Ensure that the memory modules are installed properly and the
contact leads are clean before diagnosing any system problems.
Memory test failed.	1. See 'Memory'.
	2. System board
Incorrect memory size shown	1. Insert the memory modules in the DIMM sockets properly, then reboot the system.
or repeated during POST.	2. Memory module. See the Step 005 of 'Memory' to replace memory module.
	3. System board.
System works but fails to enter	1. Enter BIOS Setup and load default settings.
power saving mode when the	2. In Windows 98, check settings in Power Mgmt. Property of Control Panel.
Power Management Mode is	3. Reload software from Recovery CD.
set to [Enabled], and power
saving timer set in BIOS has
elapsed.
System hangs before system	See 'Index of Symptoms, Messages, Error Codes, or Beeps'.
boot.	See 'Undetermined Problems'.
System hangs after system boot.	Execute a system test ('Diagnostics/All Tests' in PC-Doctor diagnostics program)
	and set it to stop at 'Halt on Error' to see the potential cause of the problem.
	'Undetermined Problems'.
Blinking cursor only, system	1. See 'Start'.
does not work.	2. Diskette/IDE drive connection/cables
	3. Diskette/IDE disk drives
	See 'Undetermined Problems'
	4. System board
Diskette Drive
NOTE: Ensure that the diskette drive is configured correctly in
BIOS Setup and its read/write head is clean before diagnosing any diskette drive problems.
Media and drive are
mismatched.	1. Ensure that the diskette drive is configured correctly
	in the Disk Drives of BIOS Setup. See 'Hard Disk Drive'.
	2. Ensure that the diskette drive is correctly formatted.
	3. Diskette drive connection/cable
	4. Diskette drive
	5. System board
Diskette drive does not work.	1. Ensure that the diskette drive is not set to [None] in the Disk Drives
	of BIOS Setup. See 'Hard Disk Drive'.
	2. Diskette drive power
	3. Diskette drive connection/cable
	4. Diskette drive
	5. System board
Diskette drive read/write error.	1. Diskette.
	2. Ensure that the diskette drive is not set to [Write protect] in the
	Security Options of BIOS Setup. See 'Security Options'.
	3. Diskette drive cable.
	4. Diskette drive.
	5. System board.
Diskette drive LED comes on	1. Diskette
for more than 2 minutes when	2. Diskette drive connection/cable
reading data.	3. Diskette drive
	4. System board
Diskette drive LED fails to light,	1. Diskette
and the drive is unable to	2. Diskette drive power
access for more than 2 minutes.	3. Diskette drive connection/cable
	4. Diskette drive
	5. System board
Diskette drive test failed.	1. Diskette
	2. Diskette drive
	3. Diskette drive cable
	4. System board
Hard Disk Drive
NOTE: Ensure hard disk drive is configured correctly in BIOS Setup,
cable/jumper are set correctly before diagnosing any hard disk drive problems.
Hard disk drive test failed.	1. Enter BIOS Setup and Load default settings.
	2. Hard disk drive cable.
	3. Hard disk drive.
	4. System board.
Hard disk drive format error.	1. Enter BIOS Setup and Load default settings.
	2. Hard disk drive cable.
	3. Hard disk drive.
	4. System board.
Hard disk drive write error.	1. Enter BIOS Setup and Load default settings.
	2. Hard disk drive.
Hard disk drive LED fails to	With the system power on, measure the voltage of hard disk LED connector
light, but system operates	CN6 for 2170 or CN14 for 2171/2172. The reading should be:
normally.	2170(CN6) 2171/2172(CN14) HDD Idle/Active
	pin-1 pin-1 +5 Vdc / --
	pin-2 pin-2 +5 Vdc / 0 Vdc
	pin-3 pin-3 +5 Vdc / 0 Vdc
	pin-4 pin-4 +5 Vdc / --
	See 'Machine Type 2170 System Board Jumpers and Connectors'
	See 'Machine Type 2171 and 2172 System Board Jumpers and Connectors'.
	See 'Machine Type 2174 System Board Jumpers and Connectors'.
	1. Hard drive LED cable.
CD/DVD-ROM Drive
NOTE: Ensure CD/DVD-ROM drive is configured correctly in BIOS Setup,
cable/jumper are set correctly and its laser beam is clean before diagnosing any
CD/DVD-ROM drive problems.
CD/DVD-ROM drive LED	1. CD/DVD may have dirt or foreign material on it.
flashes for more than 30 sec.	2. Check with a known good disc.
before LED shutting off.	3. CD/DVD is not inserted properly.
Software asks to reinstall disc.	4. CD/DVD is damaged.
Software displays a reading
CD/DVD error.
CD/DVD-ROM drive LED	1. CD/DVD-ROM drive
doesn't come on but works
normally.
CD/DVD-ROM drive cannot	1. See 'CD-ROM Emergency-exit <option 1>' and
load or eject when the system	'CD-ROM Emergency-exit <option 2>'.
is turned on and its eject button	2. Disconnect all cables from CD/DVD-ROM drive except power cable, then
is pressed and held.	press eject button to try to unload the disk.
	3. CD/DVD-ROM drive power.
	4. CD/DVD-ROM drive
CD/DVD-ROM drive does not	1. CD may have dirt or foreign material on it. Check with a known good disc.
read and there are no error	2. Ensure that the CD/DVD-ROM driver is installed properly.
codes or messages are	See 'CD/DVD-ROM Drive'.
displayed.	3. CD/DVD-ROM drive.
CD/DVD-ROM drive can play	Ensure that the headphone jack of the CD/DVD-ROM has an output, then check
audio CD but no sound output.	if the audio cable from CD/DVD-ROM drive to system board CN20 (for 2170) or
	CN8 (for 2171/2172) is connected properly.
	See 'Machine Type 2170 System Board Jumpers and Connectors' and
	See 'Machine Type 2171 and 2172 System Board Jumpers and Connectors'.
	See 'Machine Type 2174 System Board Jumpers and Connectors'.
	1. Turn up the sound volume.
	2. Speaker power/connection/cable.
	3. CD/DVD-ROM drive.
Real-Time Clock
Real-time clock is inaccurate.	1. Ensure that the information in the Date and Time of BIOS Setup is set correctly.
	2. See 'Date and Time'.
	3. Load default settings.
	4. CMOS battery.
	5. System board
Audio
Audio software program	Speaker power/connection/cable.
invokes but no sound comes
from speakers.
Modem
Data/fax modem software	See 'Factory-Installed Modem Card'.
program invokes but cannot
receive/send data/fax
Fax/voice modem software	Ensure that the modem voice-in cable from modem adapter card to system
program invokes but has no	board CN21 (for 2170) or CN12 (for 2171/2172) is connected properly.
sound output. (Data files are	See 'Machine Type 2170 System Board Jumpers and Connectors',
received normally, voice from	'Machine Type 2171 and 2172 System Board Jumpers and Connectors',
modem cannot be produced,	'Machine Type 2174 System Board Jumpers and Connectors' and
but system sound feature	'Factory-Installed Modem Card'.
works normally.)
Modem ring cannot wake up	Ensure the 'Modem Wake-Up on Ring' in BIOS Setup is set to [Enabled].
system from suspend mode.	See 'Power Management Mode'.
	If PCI modem card is used, reinsert the modem card to PCI slot firmly or
	replace modem card.
	If ISA modem card is used, ensure the modem ring-in cable from the modem card
	to system board CN19 (for 2170) or CN13 (for 2171/2172) is connected properly.
	See 'Machine Type 2170 System Board Jumpers and Connectors',
	'Machine Type 2171 and 2172 System Board Jumpers and Connectors' and
	'Machine Type 2174 System Board Jumpers and Connectors'.
	In Win 98 ensure that telephone application is configured correctly for
	your modem and set to receive messages and/or fax.
Video and Monitor
Video memory test failed.	1. Remove all non factory-installed cards.
Video adapter failed.	2. Load default settings (if screen is readable).
	3. System board
Display problem:	1. Monitor signal connection/cable.
- Incorrect colors	2. Monitor
- No high intensity	3. Video adapter card (for 2171/2172).
- Missing, broken, or incorrect	4. System board
characters
- Blank monitor(dark)
- Blank monitor(bright)
- Distorted image
- Unreadable monitor
- Other monitor problems
Display changing colors.	1. Monitor signal connection/cable
	2. Monitor
	3. System board
Display problem not listed	1. See 'Monitor'.
above (including blank or	2. Load default settings (if screen is readable).
illegible monitor).	3. System board
Parallel/Serial Ports
NOTE: Execute 'Load BIOS Default Settings' in BIOS Setup to confirm port's
presence before diagnosing any parallel/serial ports problems.
Serial or parallel port loop-back	1. Make sure that the LPT# or COM# you test is the same as is set in BIOS Setup.
test failed.	2. Run Loop-back test.
	3. System board.
Printing failed.	1. Ensure that the printer driver is properly installed.
	2. Refer to the service manual for the printer.
	3. Printer.
	4. Printer cable.
	5. System board.
Printer problems.	Refer to the service manual for the printer.
Joystick
Game port does not respond or	1. Connect a joystick to the game port, then execute 'Interactive Test/Joystick' test
does not work.	in PC-Doctor diagnostics program.
	2. System board.
Diagnostic Program
Diagnostics programs cannot	1. Reboot the system from the diagnostics diskette.
be executed.	2. Load default settings.
	3. Diagnostics diskette.
	4. Memory module.
	5. System board.
Missing diagnostics file(s).	Diagnostics diskette.
Keyboard
Some or all keys on keyboard
do not work.	See 'Keyboard'.
Power Supply
Pressing power switch does not	'Power Switch 4< sec. When set to Suspend, this parameter adds the suspend
turn off system. (Only unplug	function to the system power button on the front panel.
power cord from electrical	The suspend function allows you to put the system into suspend mode by pressing
outlet can turn off system.)	the power button for less than four seconds while the system is on.
	When this parameter is set to Power off, the power button simply turns the
	system power on or off. This parameter is set to 'Power off by default'.
	1. Power switch cable assembly
	2. See 'Power Supply'.
Pressing power switch does not	Ensure the power override switch (situated at the back of the machine, just above
turn on system.	the connector for the power cable) is not set to off.
	1. Power switch cable assembly.
Executing software shutdown	1. Load default settings.
from Windows98 Start menu	2. Reload software from Recovery CD.
does not turn off system.
(Only pressing power switch
can turn off the system).
No system power, or power	1. See 'Power Supply'.
supply fan is not running.	2. System board.
Other Problems
Any other problems.	See 'Undetermined Problems'.