Create an account on the HP Community to personalize your profile and ask a question
11-05-2017 11:49 AM
I tried looking into the manual but it says nothing about these sequences of beeps.
I have tried unplugging everything and it still beeping.
There are 3 long beeps, followed by 4 short beeps. This repeats 5 times before the HP logo shows and then a message appears with
“ERROR Unsuported adapter installed. PC will automatically power down in a few seconds”
I tried pressing escape for system menu but it still shuts down.
11-05-2017 12:40 PM - edited 11-05-2017 12:41 PM
See the below list of error codes. If you modified your PC then remove the modifications.
HP Envy 17", i7-8550u,16GB, 512GB NVMe, 4K screen, Windows 10 x64
Custom PC - Z390, i7-9700K, 32GB, dual 512 GB NVMe, dual 512 SSDs, 4K screen, OC'd to 5 Ghz, NVIDIA 2080TI 11GB
11-07-2017 10:11 AM
> I have tried unplugging everything and it still beeping.
By "everything", do you mean that you removed the cover-door to expose the wireless adapter card, and then removed that card from its socket?
> ERROR: Unsupported adapter installed.
Although your All-In-One computer should NOT be "complaining" about the wireless adapter, it MIGHT be.
Before you physically remove that card, try:
* disconnect the AC power
* press-and-hold the ON/OFF button for 30 seconds, to "drain" any residual voltages
* reconnect the AC power
to see if the message is still reported.
P.S. How old is the computer? Is the HP Warranty still valid? If so, contact HP, to exercise the warranty.
09-15-2018 05:51 PM
The same solution worked for me. After trying other proposed solutions (unseating and reseating the USB receiver for my mouse and keboard with a reboot in between), I found that the power cord for my HP Pavilion all-in-one was not well seated into the machine. I seated the cord properly and the beeping (five sets of 3 long beeps at one tone and four short beeps at another tone) upon reboot mercifully ceased.
03-17-2019 02:31 PM
Excellent... the power chord was loose and I pushed it back in place and the problem resolved.. Thank you..
But does anyone think why the chord came loose in the first place.. as for my system it is in a place where it was never moved and no one has any need to reach behind the system to disturb the cables..So I wonder how this has happened.... Strange..