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    Help me test out Win+B on a broken/desoldered/loose GPU

    Discussion in 'HP' started by kocoman, Oct 28, 2009.

  1. kocoman

    kocoman Notebook Enthusiast

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    If you have an Phoenix BIOS (there should be a small logo at the right lower corner..)

    And with a broken/desoldered/loose GPU (black screen with blue bars)

    Can you press Help Win+B (or ctrl-b, alt-b) then turn on the laptop. Does it make beeps?, if you put in a USB floppy disk, with a disk inside, does it try to read it?

    If so it might be possible to rewrite the BIOS so that it will initialize the "Vidock/hwtools.net" pci-express adapter FIRST.

    Just like how in BIOS you can "set it" (via setup) to initialize the AGP or PCI video card FIRST, or PCI-E or PCI video card FIRST.

    Thanks
     
    kocoman, Oct 28, 2009
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  2. User Retired 2

    User Retired 2 Notebook Nobel Laureate NBR Reviewer

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    On a GM950 DV2000 (Phoenix Bios), I attaching a hwtools' PE4L-EC2C, then switching it on and the bios screen then goes to the external HD4670 graphics. This gives hope that cooked Nvidia systems (DV6000 series) can do the same. Photos showing "bios bootup mode" are here.
     
    User Retired 2, Oct 28, 2009
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  3. kocoman

    kocoman Notebook Enthusiast

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    The problem is I tried it (HP with internal 6150 nvidia) and (hwtools 7300 nvidia or 6600gt nvidia) with mine hwtools adapter, but then it just give me 'beep beeps' and blank screen on both if I power up the notebook.

    If I inserted the adapter *after* windows boots then it detects it fine.

    Maybe an mini pci-e POST card can debug the problem..?

    I am not sure if the problem is

    1) lack/competeing of pci resources
    2) bios is blacklisting it.

    but because it beeps, I think the bios knows there is an error. but how to run a debug console on a bios/bootloader?

    I've tried to add a pci-e video rom to the bios file, but still the same beep problem.

    I've also tried to replace the existing 6150 video rom with the pci-e video rom.. this also does not work.

    Some type of blacklisting or force use of the internal bus first..

    Is the 6150 built in really PCI, as reported by gpuz?
     
    kocoman, Oct 28, 2009
    #3