Laptops forum


Compaq Presario CQ40 won't Boot

by epacor / May 12, 2012 2:08 PM PDT

I have a Compaq Presario CQ40 that was working perfectly with Windows 7 home then all of a sudden it won't boot.
When you start I get nothing on the screen and after about 1 minute all you get is the Cap lock light and Num lock light continuously flashing. The CPU fan starts and then stops after a few seconds.
I have done these things to try and fix it with no luck.
- all power off and battery out, hold start button down for 30 seconds and the restart
- taken motherboard battery out for 60 seconds then restart
- checked all conectors internally to see that they are connected
- swapped RAM around
- Put new RAM in
- disconnected all H/W like HDD, DVD, Wireless, speakers and restart
- Put a new CPU in
- the HDD working as an external drive on another laptop
- tried another power supply

Nothing seems to work!!!!!
Can anyone suggest anything more that I could try?

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Clarification Request
Did you try the GENERIC RESET at the top of this forum?
by R. Proffitt Forum moderator / May 13, 2012 2:14 AM PDT
Collapse -
Clarification Request
by Cheron_HP HP staff / May 21, 2012 4:23 AM PDT

Hi epacor,
Were you able to resolve the issue?

"The views expressed in my contributions are my own and do not necessarily reflect the views and strategy of HP"

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