I can start the laptop with the card connected and it immediately outputs through the card, it works fine doing desktop/web browsing activities. The problem is whenever I attempt to run any games the output signal appears to disappear without any sort of error indication leaving me with the 'No signal' prompt.
Works on menus and load pages, and crashes only after the loading is done
Tried low-spec Halo , and ran for ~ 1min before crashing.
Alt+F4 won't work - it's like someone pulled the graphics card out , and I must press power button to shut down.
Managed to get the display to work for a few minutes and saw : " Problem Ejecting NVIDIA GeForce GTX 750 " (Image Link)
The GPU was somehow disconnected as soon as the games loaded .Of course, cables are secure.
- Panasonic Toughbook CF-53 laptop (specifically, CF-53SAPZYC7) with Win 7 Pro SP1 64-bit (latest updates)
- i5-3340M CPU, 8 GB DDR3 RAM
- EXP GDC Beast v8 Mini PCI-E , GTX 750 ZT-70704-10M
- PSU : Generic 300W Grey Box from an old yellow-white Dell office pre-built. Picked from a PC fitted with a Celeron SL6RP .
PSU is sketchy, but as GPU is rated 55 W only, it may not be that ?
And, a quick Google search of "problem ejecting NVIDIA GeForce GTX 750" returns many forum posts on Nvidia's website that point to driver instability 3 to 5 years ago.
What is the likely cause and any ideas what can solve this ?