Alienware 15R3 start 2 sec and shut down

Discussion in '2015+ Alienware 13 / 15 / 17' started by Alfly, Sep 4, 2021.

  1. Alfly

    Alfly Notebook Guru

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    Hi everyone,

    I guess someone already wrote about it but i don't find any thread. I think i searched with wrong "key word".

    Anyway i do my own post.

    I own an Alienware 15R3 (I5-7300HQ, GTX1060). This computer starts and shut down 1 or 2 sec after.
    I have no access to the bios, looks like the bios doesn't start yet.
    I thought about a RAM issue, and removed it from the PC. I also removed the SSD and HDD.

    I did a reset : First by removing the battery, power and CMOS battery for 5 mins.
    And by pressing power button while all was removed for 1 min.

    My problem is still here.
    When Ram is removed the computer "see" that and shows me "2 red light and 3 blue light", that is normal.
    But when i plug the RAM the PC won't start correctly.
    I tried with the RAM from my Clevo (same frequency) ... nothing changed.

    I bought this computer as "starts but there is no screen, but start well". On photos i could see the keyboard and all lights switched on, but screen backlight off. So i thought a screen issue.

    I plugged the PC to an external screen to exclude the internal screen.

    So i think it doesn't initialize the bios. Maybe the precedant owner tried to upgrade the bios and fail.

    Any idea?

    One thing i didn't try is to unplug the battery and just start with the power supply plugged.
     
  2. Alfly

    Alfly Notebook Guru

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    Anybody has a suggestion?

    Try to boot from an usb key to re-install the bios but the computer still shutdown before showing something on the screen.
    When i remove the RAM the PC doesn't shutdown but the screen is black without backlight aned the Alienware's button shows a "signal" that means the Ram is removed.

    So I guess the motherboard is OK.
    I will continu to search.
     
  3. Vassilis008

    Vassilis008 Notebook Consultant

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    Did you try both on battery mode and plugged in?
     
  4. Alfly

    Alfly Notebook Guru

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    Yes I did today.
     
  5. Alfly

    Alfly Notebook Guru

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    2 videos.

    First. This is battery unplugged, RAM and SSD plugged :


    Computer isn't able to properly boot.

    Second. This is battery and RAM unplugged :


    Computer start and keep on. Just saying "I have no RAM".

    RAM is toasted? I put it into my Clevo P751. I browse the web for 2 hours now with this RAM. So, no toasted.

    So, motherboard is toasted?
    But a toasted motherboard won't be able to boot without RAM, it's not?
     
  6. Alfly

    Alfly Notebook Guru

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    I undid the motherboard and found oxydation. Will try to clean it with isopropanol, and hope to revive the motherboard. But maybe I will need a new one.
     
  7. Vaardu

    Vaardu Notebook Evangelist

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    Whereabouts did you find the oxidation?
     
  8. Alfly

    Alfly Notebook Guru

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  9. 4W4K3

    4W4K3 Notebook Evangelist

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    Excellent investigative skills there, that has to be a short with so much built up oxidation. Should hopefully clean up and you may see a boot screen.
     
  10. Alfly

    Alfly Notebook Guru

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    Hope to see this screen.
    I gonna go to holidays from monday for one week, so i will work on it after my holidays.
     
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