Does the laptop turn on a couple of seconds after being turned off?

H

Hint2012-04-13 18:24:29

Electronics

Hint, 2012-04-13 18:24:29

Bought an HP EliteBook 8560p. Updated Windows, updated HP utilities through the program from HP, updated the BIOS (downloaded the latest version from the official website). There were no errors during this process.
The problem is the following: the laptop itself turns on almost immediately after turning it off (both when working from the network and when running from the battery). I press "shutdown", the laptop turns off, the lights go out, 2 seconds pass, the lights turn on, the download starts. All "wake on" are disabled both in the BIOS and in the network card settings. In the "boot and recovery" window in the "system failure" section, the "automatic reboot" option is disabled. Changed PowerdownAfterShutdown in the registry.
What can be wrong? Where to look?

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6 answer(s)

H

Hint, 2012-04-14
@Hint

As a result, I rolled back the BIOS, the problem disappeared. Then reinstalled the same version, the problem did not reoccur.

I

ipadm, 2012-04-13
@ipadm

Met such glitch on Dell 1501. Try to be loaded from Live-CD Ubuntu and to turn off a computer. If the glitch repeats, then the bios needs to be returned to the old one.

E

edogs, 2012-04-13
@edogs

After updating the BIOS, it is desirable:
a) Set the BIOS settings to default, save the result, configure as needed (it helped at one time on HP to get rid of the fan turned on at 100% after updating the BIOS).
b) Remove the battery, disconnect from the mains, wait 5 minutes, insert the battery (it helped at one time from the constant attempt to charge the laptop after updating the BIOS).

V

ValdikSS, 2012-04-14
@ValdikSS

If this happens again:
1) Turn off the network card in the BIOS (completely).
2) Turn off pcie power saving in Windows.
Something should help. Then you can turn it back on.

A

arkanum, 2013-04-14
@arkanum

I had this problem after buying an HP ProBook 4540s. Suse demolished immediately and installed Mint. There was no Wifi driver, but I only had wifi network. I found where to download it and installed it. And it was after installing this driver, when the network started working, that the problem began with turning on the computer after a few seconds in the off state. At the moment, the problem has not been completely resolved. I save myself by turning off the “Embedded wlan device” item in the BIOS.
It is inconvenient, because when I turn the laptop on and off, the first thing to do is enter the BIOS. Do you think it needs to be updated?

P

Pro_Code, 2020-08-16
@Pro_Code

No matter how stupid it sounds, but on the HP 4540s model, such a problem was associated with the failure of the wi-fi module (it is also bluetooth in one bottle). The module worked in half: it could connect to the network, it could not, but it was determined by the system. Immediately after moving the module to the furnace, the problem disappeared. New module in order..... Module - ralink3290(from the factory).