acpi bios error

[frank03]

hi all hopefully you can help me or confirm what i think

when i power on the laptop no output to its own screen

hdd disconnected, heat sink fan only comes on at start up

when i connect via hdmi port black screen too,if i press f10 i get black screen with mouse cursor no data

if i plug in hdd or bootable usb stick i get hp screen then moves to blue screen with acpi bios error over and over

ive done windows key +b pressed power button does nothing

ive disconnected bios battery overnite does nothing

i believe the bios is possibly corrupted

ive also tried the hp bios recovery tool does nothing

any thoughts on anything else i can try or buy new mainboard

TIA

[Jeet_singh]

@frank03,

Thank you for posting your query on HP Community,

After reviewing your post thoroughly, I suspect this to be a possible hardware failure. Where the computer needs to be picked up for repair.

In this scenario, I would personally suggest you contact our HP support team for further assistance. 

HP support team can be reached on www.hp.com/contacthp

Let me know if you need any further assistance. I'll be more than happy to help you.

That said, If the information I've provided was helpful, give us some reinforcement by clicking the Accepted Solution and Kudos buttons, that'll help us and others see that we've got the answers!

Have a great day!

[frank03]

thanks for the reply

ive ordered a replacement board so hopefully by next midweek il have it up and running again

whilst the board is removed from its home i will do some further tests just to check that its nothing connected to the board causing it

i will update next week

[Jeet_singh]

@frank03,

Thank you for replying,

Please take your time and get back to us with the results.

Disclaimer: HP Doesn't recommend any upgrade/downgrade of any hardware parts or software that is bundled with the product. It may affect the manufacturer's warranty and performance. You can change the configuration at your own risk.

Keep me posted on further assistance!

Take care and have a great day ahead.

Thank you 🙂

[frank03]

hi all

the replacement board took longer than expected from poland so apologies for later update

i fitted the new board with just the bare minimum to start it up pressed the on button and still no output to its own screen ;-( however on external screen all good

i had no reson whatsoever to suspect the screen so i went about removing the screen the screen bezel has double sided tape all the way round it and the bezel is super thin i eventually got the bezel off (this tells me the screen has never been out before)

undone the 4 retaining screws and the screen cable is completly out of its socket plugged it back in fitted the 4 retaining screws and turned it on i could now go into bios etc i reinstalled win 10 all good, this got me thinking maybe the old board was ok after all so this morning i put that back in and its working fine too so i now have an i5 board and an i7 board for the same laptop both working fine cant return the the board to poland so will keep the i7 board and sell the i5 one

good outcome in the end

i cant explain the intial issues with the board as they have gone with out me doing anything other than removong the board and refitting it

[Jeet_singh]

@frank03,

I'm glad you got this issue sorted out.

Do visit our HP Forums and drop us a message anytime you need help.

Thank you 😀