You're saying starting GPU-Z causes an instant shutdown? All it is doing is reading data from the GPU firmware. You should make sure you have the latest GPU driver and perhaps try a different version of GPU-Z. If it keeps happening you may have to look at the Windows event log. There's a lot to interpret there so I suggest you Google on how to do that.
A bus station is where a bus stops. A train station is where a train stops. On my desk, I have a work station…