HP ProBook - power on - LED lights - click sound near power pack - fan starts - dont' boot

[kstrid]

Suddenly this happends: HP ProBook - power on - LED lamps lights - click sound near power pack - fan starts - dont' boot

After a week or two normal start again.

After another two weeks same problem again.

I have removed the RAM, battery,,,,pressed the power on for   a minute put back the power cord,,,tried again

[GBL84]

@kstrid,

Run the System Diagnostics tests and post back the results !!

The diagnostic tests are run from the Startup menu. These tests check the main components of your computer to make sure they are working properly. Use the following steps to run the diagnostics tests to check for problems.

1. Press and hold the Power button until the computer turns off completely.
2. Turn on the computer. Immediately press the Esc key repeatedly, about once every second, until the Startup Menu is displayed.
3. Press the F2 key.
   The System Diagnostics screen displays with the following menu options.
   • System Information
   • Start-Up Test
   • Run-In Test
   • Hard Disk Test
   • Memory Test
   • Battery Test
   • Error Log
   • Exit
   
4. Click the test you want to run. Each test runs individually and displays the results.

Hope this helps, for any further queries reply to the post and feel free to join us again !!

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Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem.

Thank You,

GBL84

I am not an HP Employee

[kstrid]

Thx for your interest in my problem.

Unfortunately the startup meny does not show up

😞

[GBL84]

@kstrid,

Do you notice any blinking LED'S

If yes !!!   Can you match the sequence of 'blinks' to those shown in the table below.

Hope this helps, for any further queries reply to the post and feel free to join us again !!

 **Click the White Thumbs Up Button on the right to say Thanks**

Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem.

Thank You,

GBL84

I am not an HP Employee

[kstrid]

5 blinks caps lock/num lk before fan starts. Indicates sysem board failure.

Impressive way to analyse....

[GBL84 · Accepted solution]

@kstrid,

You're very Welcome !!

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All the Best !!   Thanks for being a member!

 **Click the White Thumbs Up Button on the right to say Thanks**

Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem.

Thank You,

GBL84

I am not an HP Employee