wt9450xe only beeps at power up

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  • #7946
    bpoia
    Member
    • Total Post: 3
    • Newbie

    Hi,
    I’ve got a couple of 9450xe terminals that only beep at power up. I know about re-flashing as I’ve done many over the years.
    These don’t even get to flashing the screen with the BIOS info, etc.

    Any hope of recovering the terminals or should I just recycle them?

    #24118
    g0rsq
    Member
    • Total Post: 6
    • Newbie

    I am no expert on these, as you can see from a previouse thread!

    But

    The 9450xe’s are basicaly just very simple PC’s, with a WYSE bios, and Wyse software.

    So if you cant get to the bios screen you need to diagnose them as you would a normal PC.

    Remove everything from the main board except 1 stick of RAM, the PSU a keyboard, a mouse and a monitor. you dont need the flash drive or the HDD installed.

    Now try booting, and press delete after the Wyse logo.

    If you dont see the Wyse logo, or if you cant get into the bios one of the above items is faulty, or you have a bad bios or the main motherboard is faulty.

    You can reset the bios to default by clearing the CMOS:-
    Power off, remove onboard battery, remove the link from pins 1 and 2 on the jumper near the battery and replace on pins 2 and 3 for about 5 seconds, then put back onto pins 1 and 2.
    Refit battery and power up and try and boot back into the bios.

    If this doesnt work then you need to substitute each component (mouse, keyboard, PSU, RAM, motherboard) with a known good one untill you find the fault.

    Hope this helps

    Peter

    #24154
    ConfGen
    Keymaster
    • Total Post: 10696
    • Jedi Master
    • ★★★★★★★

    No sure, if you are still waiting on an answer.
    The only option you have here is to replace the BIOS.
    As the units do not boot at all anymore, you would have to go this way.

    – open a working unit
    – open a broken unit
    – look for the BIOS chip. This is a small 1x1cm socketed chip.
    – remove the working BIOS and plug it into the broken unit
    – now start the unit AND reflash it
    – directly after the flashing process starts, but before the real bits are written, press “Pause” on the keyboard to halt the flashing process.
    – now unplug the working BIOS chip in the broken unit and replace it again with the broken BIOS chip.
    – continue the flash process

    This may sound strange as you are unplugging a chip while the unit is powered on but I did this many time myself and never ever had a failing unit.
    Of course, doing this is on your own risk. But you have nothing to loose, I guess.

    CG

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