Troubleshooting Without Diagnostics

Diagnostic Front Panel LEDs and Audible Codes

Diagnostic Front Panel LEDs and Audible Codes

Activity

Beeps

Possible Cause

Recommended Action

 

 

 

 

Green Power LED

None

Computer on.

None

On.

 

 

 

Green Power LED

None

Computer in

flashes every two

 

Suspend to RAM

seconds.

 

mode (some

 

 

models only) or

 

 

normal Suspend

 

 

mode.

Not support wake up by mouse/ keyboard.

Should be Press Power button.

CPU Fan weak

2

Processor thermal

1.

Ensure that the computer air vents

(RPM < 1000) or

 

protection

 

are not blocked and the processor

not turning, Display

 

activated:

 

cooling fan is running.

Warning message

 

A fan may be

2.

Open hood, press power button,

and Long Beep for

 

blocked or not

 

and see if the processor fan spins.

5 sec and shut

 

turning.

 

If the processor fan is not

down.

 

OR

 

spinning, make sure the fan's

System Fan weak

 

 

 

The heatsink/fan

 

cable is plugged onto the system

(RPM < 1000) or

 

 

board header. Ensure the fan is

 

assembly is not

 

not turning, Display

 

 

fully/properly seated or installed.

 

properly attached

 

Warning message

 

3.

If fan is plugged in and seated

 

to the processor.

and Long Beep for

 

 

 

 

properly, but is not spinning, then

5 sec and shut

 

 

 

 

 

 

replace processor fan.

down.

 

 

 

 

 

4.

Reseat processor heatsink and

 

 

 

 

 

 

 

verify that the fan assembly is

 

 

 

 

properly attached.

 

 

 

5.

Contact an authorized reseller or

 

 

 

 

service provider.

 

 

 

 

 

Red Power LED

5

Pre-video memory

1.

Reseat DIMMs. Power on the

flashes five times,

 

error.

 

system.

one every second,

 

 

2.

Replace DIMMs one at a time to

followed by a 2

 

 

 

 

 

isolate the faulty module.

second pause. Also

 

 

 

 

 

3.

Replace third-party memory with

5 simultaneous

 

 

 

 

 

HP memory.

beeps will be

 

 

 

 

 

4.

Replace the system board.

heard.

 

 

 

 

 

 

Red Power LED

6

Pre-video

For systems with a graphics card:

flashes 6 times, one

 

graphics error.

1.

Reseat the graphics card. Power

every second,

 

 

 

 

 

on the system.

followed by a 2

 

 

 

 

 

2.

Replace the graphics card.

second pause. Also

 

 

 

 

3.

Replace the system board.

6 simultaneous

 

 

beeps will be

 

 

For systems with integrated graphics,

heard.

 

 

replace the system board.

 

 

 

 

 

D–22

490778-001

Service Reference Guide

Page 93
Image 93
HP dx2310 manual Diagnostic Front Panel LEDs and Audible Codes, Activity Beeps Possible Cause Recommended Action

dx2310 specifications

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