hp elitebook 8530p

[RKNWS]

I have several HP 8530p and I getting  the num lock & cap lock leds blinking 5 times which indicates a general system board error. Bought new boards still getting the same issue.  Note all the units will boot to windows fine, but there is a 10-15 sec delay in hard drive response when operating pc. The mouse is real time responsive but once you clink on a item the lag shows up.  Need suggestions on what to look for as the problem, CPU , Memory changed, Fans, Cooling system.  Bios versions have been updated, I've torn the unit down, cleaned and added new thermal paste to CPU, GPU and added copper shims to promote better heat transfer. The system Diagnostics indicates hardware is ok.

[banhien]

Hi,

Please try a hard reset and see if it works.

1. Power off your laptop
2. Remove the a/c adapter, battery and everything that is attached to your laptop.
3. Hold the 'POWER 'button down on your laptop for about 10 seconds.
4. Plug in the a/c power supply (without battery) and power on.

Regards.

[RKNWS]

No, still same issue.  Any other suggestions.

[RKNWS · Accepted solution]

After testing my computers, I found that the power support as cuasing the issue. I had tested all the 8530p with that same tested power supply which work great on other HP systems fine. I changed my AC adaptor all 3 8530p laptop are working fine now.

[joseferreira_ms]

I have the same problem on my Elitebook 8740w... Thanks!