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An Ant
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Nvidia Card being 'ejected' as soon as game launches

Issues are very similar to this and this

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.

Ran CoD2 and GTA IV , worked on menus and load pages, and crashed only after the loading is done (post "click to start mission" in CoD) .

Tried Halo, and ran for ~ 1min before crashing.

Alt+F4 won't work - it's like someone pulled the graphics card out , and I 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, this is not mechanical.


  • Panasonic Toughbook CF-53 (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 Grey Metal Box from an old yellow-white Dell office pre-built. Picked from a PC fitted with a Celeron SL6RP .

PSU is sketchy, but GPU is rated 55 W only. 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 cause and any ideas what can solve this ?

How to verify if it is the PSU dropping power or driver issues ?

An Ant
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