Kinh nghiệm hp 840 g1 6050a2560201 ram error

Discussion in 'Computer Hardware Repair' started by bisketti, Apr 1, 2019.

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  1. bisketti

    bisketti Well-Known Member

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    Caps lock blinks 3 times indicating ram error. DDR3L ram voltage is 1.35v (L6200), VRPVtt is .67v should this be .75v?. Bios and ec was flashed but same, any point in flash KBC?.
    Also Fan runs full speed after a few seconds and screen stays black. Current is draws 300mv
    Any other ideas.
     
    #1 bisketti, Apr 1, 2019
    Last edited: Apr 1, 2019
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  2. technical

    technical Moderator Staff Member

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    try one BIOS new and check chipset.
     
    #2 technical, Apr 1, 2019
  3. bisketti

    bisketti Well-Known Member

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    I have tried 2 different bios and ec files. I havent flashed the kbc do you think there is any point?. And when you say check chipset what do you mean by that ?.
     
    #3 bisketti, Apr 1, 2019
  4. technical

    technical Moderator Staff Member

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    laptop this have bios original manufacturer?
     
    #4 technical, Apr 1, 2019
  5. bisketti

    bisketti Well-Known Member

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    No from this site with clean Me region
     
    #5 bisketti, Apr 1, 2019
  6. technical

    technical Moderator Staff Member

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    ask before Programming bios form site you have backup bios old?
     
    #6 technical, Apr 1, 2019
  7. bisketti

    bisketti Well-Known Member

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    Yes I always back up bios files
     
    #7 bisketti, Apr 1, 2019
  8. bisketti

    bisketti Well-Known Member

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    Bios downloaded from Hp site extracts to only 8mb , I need 16mb.
     
    #8 bisketti, Apr 1, 2019
  9. technical

    technical Moderator Staff Member

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    #9 technical, Apr 1, 2019
  10. bisketti

    bisketti Well-Known Member

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    Is Mec1322-nu programmable ? if it is do I need to jtag connect or keyboard via SVOD?.
     
    #10 bisketti, Apr 1, 2019
  11. technical

    technical Moderator Staff Member

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    non Programming
     
    #11 technical, Apr 1, 2019
  12. bisketti

    bisketti Well-Known Member

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    Ok I will try your bios files and report back.
     
    #12 bisketti, Apr 1, 2019
  13. bisketti

    bisketti Well-Known Member

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    Both files written but still the same.
     
    #13 bisketti, Apr 1, 2019
  14. technical

    technical Moderator Staff Member

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    all bios same problem is BIOS good.
    Please ignore the BIOS
     
    #14 technical, Apr 1, 2019
  15. bisketti

    bisketti Well-Known Member

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    Yes not a bios or ec problem. Is there a boardview available for this model?
     
    #15 bisketti, Apr 1, 2019
  16. technical

    technical Moderator Staff Member

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    Unavailable boardview and schematic
     
    #16 technical, Apr 1, 2019
  17. bisketti

    bisketti Well-Known Member

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    Any ideas where to go from here?
     
    #17 bisketti, Apr 1, 2019
  18. technical

    technical Moderator Staff Member

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    Check all that happened before.
    Take the time to measure and test all components and voltages. Don't ask too much, it will confuse you.
     
    #18 technical, Apr 1, 2019
  19. bisketti

    bisketti Well-Known Member

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    i was going to try original bios from hp website but it only extracts to 8mb how to decrypt it to get the proper bin ?
     
    #19 bisketti, Apr 1, 2019
  20. technical

    technical Moderator Staff Member

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    skip the bios :(
     
    #20 technical, Apr 1, 2019
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