Power

Symptom

Problem

Solution

 

 

 

PC will not turn on or start.

PC is not securely connected to

Ensure that cables connecting the PC to the external power

 

an external power source.

source are plugged in properly.

 

Green power supply light on

When the cables connecting the PC to the external power

 

back of PC is out.

source are plugged in properly and the wall outlet is

 

 

functioning, the green power supply light should be on;

 

 

if the light is not on, refer to the Warranty and Support

 

 

Guide to contact Support.

 

 

 

 

Monitor is not connected or is

Connect the monitor to the PC, plug it in, and turn it on.

 

not on.

 

 

 

 

 

Line voltage selection switch is

Set the line voltage selection switch to the correct setting

 

not in the proper position for

for your country/region, or refer to the Warranty and

 

your country/region

Support Guide to contact Support.

 

(115V￿/230V￿).

 

 

 

 

 

Wall outlet is defective.

Test the outlet by connecting a different electrical device to

 

 

the outlet.

 

 

 

 

Wrong memory modules were

Reinstall the old memory to return your PC to its original

 

used in an upgrade, or

state. Refer to the Upgrading and Servicing Guide for

 

memory modules were

instructions.

 

installed in the wrong location.

 

 

 

 

 

Hard disk drive is damaged.

Press the Help ? button on the keyboard to open the Help

 

 

and Support Center, or refer to the Warranty and Support

 

 

Guide to contact Support for replacement details.

 

 

 

 

After an upgrade or repair, the

Reseat drive power, data, and power supply cables. See

 

drive power, data, or power

the Upgrading and Servicing Guide for instructions.

 

supply cables may not be

 

 

properly connected.

 

Invalid system disk

A diskette has been left in the

When drive activity stops, remove the diskette and press

Or

drive during startup.

the spacebar. The PC should start up.

Non-System disk or disk

 

 

error message displays.

 

 

 

 

 

PC appears locked up and

PC is not working.

Press and hold the On button until the PC turns off.

won’t turn off when the On

 

 

button is pressed.

 

 

 

 

 

PC powered off

The PC temperature was

The PC is in an exceedingly hot environment. Let it

automatically.

exceeded.

cool down.

 

 

Ensure PC air vents are not blocked and internal fan is

 

 

running. Note that your PC may not have an internal fan.

 

The PC temperature was

Replace cover or access panel, and let the PC cool down

 

exceeded because the PC was

before attempting to turn on power to the PC.

 

functioning with the cover or

 

 

access panel removed.

 

 

 

 

 

Processor or system fan has

Refer to the Warranty and Support Guide to contact

 

failed.

Support for replacement details. Note that your PC may

 

 

not have an internal fan.

 

 

 

16PC Troubleshooting and System Recovery Guide

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HP a1109.uk, m7181.uk manual Power, PC will not turn on or start