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2 Posts

09-25-2015

Malaysia

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Lenovo Desktop Edge 72 not able to start up with 2 beeps sound and black screen on the monitor

2015-09-25, 3:46 AM

I have a Lenovo Desktop Edge 72 which not able to start up. When I press the power on button, it have 2 beeps sound and after several second, it was power down. The monitor screen is black.

 

From the internet, it might be following issue:

1. RAM not working correctly.

2. CMOS setting issue. Need to flash BIOS.

 

However, I had tried the following ways but it was not working.

1. Exchange the RAM with another same model desktop. Another desktop is working fine with both of the RAM.

2. Exchange the power supply. Another desktop is working fine with both of the power supply.

3. Exchange the harddisk. Another desktop is working fine with both of the harddisk.

4. Press F1 to get into the Setup Utility page but not able to do so as the screen is empty (Black)

5. Press F12 to get into the BIOS setting page but not able to do so as the screen is empty (Black)

 

Kindly please assist.

 

Venus

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71 Posts

02-04-2015

DE

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Re: Lenovo Desktop Edge 72 not able to start up with 2 beeps sound and black screen on the monitor

2018-01-17, 23:14 PM

This just fixed it for me 10 minutes ago:

https://support.lenovo.com/de/de/solutions/ht077504


    1 Remove all media from the drives and turn off all attached devices and the system.  Then, disconnect all power cords from electrical outlets and disconnect all cables that are connected to the system.
    2 Remove the system cover.
    3 Locate the Clear CMOS/Recovery jumper on the system board.  See “Locating parts on the system board”.
    4 Remove any parts and disconnect any cables that might prevent access to the Clear CMOS/Recovery jumper.
    5 Move the jumper from the standard position (pin 1 and pin 2) to the maintenance position (pin 2 and pin 3).
    6 Reinstall any parts and reconnect any cables that have been removed or disconnected.
    7 Reinstall the system cover and reconnect the power cords for the system and monitor.
    8 Turn on the system and then insert the original POST and BIOS update (flash update) disc into the optical drive.  The recovery session will take two to three minutes to begin.  During this time, a warning message will be displayed and no action is needed from the user.
    9After the recovery session is completed, there will be no video, and the system will automatically turn off.
    10 Repeat Step 1 through Step 4.
    11 Move the jumper back to the standard position (pin 1 and pin 2).
    12 Reinstall any parts and reconnect any cables that have been removed or disconnected.
    13 Reinstall the system cover and reconnect power cords and all other external cables.
    14 Turn on the system to restart the operating system.

If the user does not have the original POST and BIOS update file, the user can download this file from the Lenovo eSupport web site and generate a new recovery file from the following URLs:

ThinkCentre M72e, Edge 72:

http://download.lenovo.com/ibmdl/pub/pc/pccbbs/thinkcentre_bios/f1j963usa.iso

 

https://support.lenovo.com/de/de/downloads/ds029433

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1 Posts

09-06-2018

GB

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Re: Lenovo Desktop Edge 72 not able to start up with 2 beeps sound and black screen on the monitor

2018-09-06, 18:29 PM
Thanks for this! Is it possible to do the POST and BIOS update from USB stick rather than CD ?
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