Help! All-in-one won't boot!

[Charleegrl]

Tried to boot up my work computer this morning and all I get are a repetition of loud beeps. 3 long and 4 short.

Any ideas?

[itsmyname]

@Charleegrl -- any ideas?

I did a search within this discussion forum, and found several posts with identical symptoms:

1.  @Big_Dave  -- 

   https://h30434.www3.hp.com/t5/Desktop-Boot-and-Lockup/3-long-beeps-followed-4-short-beeps-and-then-s...

    Disconnect the power-cord, and firmly reconnect it.

2.  @Echo_Lake -- 

   https://h30434.www3.hp.com/t5/Desktop-Boot-and-Lockup/3-long-beeps-4-short-beeps-on-startup/td-p/750...

   Replace the power-supply.

3. @huntsk -- 

   https://h30434.www3.hp.com/t5/Desktop-Operating-Systems-and-Recovery/3-Long-Beeps-4-Short-higher-pit...

   Pulling out the wireless keyboard/mouse USB adapter and booting back up without it did the trick.
   When I plugged the adapter into a different USB port, and rebooted, no beeps.

I hope this helps.

P.S. Is your "work PC" owned by you, or by your employer? If the latter, and none of the above suggestions work, then contact your employer's I.T. Support Group.