8540w boots after caps lock and NumLock flash 5 times

[Dhgreen99]

When I boot, the caps lock and num lock LEDs flash 5 times, 5 times. But then boots normally and runs Windows 7 without error and with no issues in Device manager. I have reset bios, discharged CMOS, and updated to the latest bios. Any ideas?

[GBL84]

Hi,

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

[Dhgreen99]

Yes, it would seem to indicate a system board failure. But the unit will eventually boot (after 5 sequences of 5 flashes. 35 flashes total). I find it hard to believe it would boot if the system board is bad.

[Dhgreen99]

25 flashes total...

[Dhgreen99]

Just by happenstance, I have found a workaround. If I have a flash drive in ANY USB port at boot the issue does not occur. Legacy USB is not enabled and USB boot is not enabled. Not a solution, but a weird workaround...