MISSING Toshiba Satellite NVIDIA GPU after Windows 10 Clean Install

[bsouth]

Hi, I have a Toshiba Satellite S55-C5262 with dual GPUs on board, an Intel 5500 and an NVIDIA GTX 950M. Recently my HD crashed and was not recoverable, so I did a clean Windows 10 install from Windows installation media on a new SSD and then upgraded it to Pro using my license key.

The system is up and running fine and I have installed/updated all the hardware drivers, including the ones from Toshiba's site. The problem is that the NVIDIA GTX 950M is missing. It is not listed as visible or hidden in device manager, not seen by DxDiag, not seen by Intel's online driver assistant, not seen by GPU-Z, no NVIDIA control panel, and I am unable to install any NVIDIA drivers with an error stating that necessary hardware is not found on my PC. There are no yellow exclamation points or unknown devices showing up in device manager either.

Any ideas? Thanks in advance.

 

[Peter Martin]

http://files.ecp.toshiba.com/2016/08/21/1457/30/TCM0007400D.exe

if that doesn't find it, then it died or isn't working. your laptop might need repair.

 

[gasaraki]

A long shot but check the BIOS and see if it's listed in there anywhere.

 

[bsouth]

http://files.ecp.toshiba.com/2016/08/21/1457/30/TCM0007400D.exe

if that doesn't find it, then it died or isn't working. your laptop might need repair.

Thanks for the suggestion, but no luck. That particular driver didn't even give me the courtesy of an error message. It just unpacked, executed, and then nothing. Maybe I should try re-pasting the GPU and give it a good jiggle.

 

[bsouth]

A long shot but check the BIOS and see if it's listed in there anywhere.

Thanks for your reply. Checked the BIOS, no mention of video anywhere. I'm running the "latest" BIOS from Toshiba (Insyder v5.2) and even tried re-flashing that version through Windows, but it did nothing (really nothing). Just unpacked the BIOS, ran the installer, and then sat in my processes forever until I killed the tasks. The USB method Toshiba offers to update BIOS is super sketchy, so think I'll be leaving the BIOS alone for now unless someone thinks flashing it is worth a shot.