driver crash

[Trophywolfe]

so i got my new 750ti ftw and i did a pretty decent overclock( +90 core and +700 on the memory using persitionX) than i ran furmark to see if it went as smooth as the other overclocks i was doing all on defult voltage and the temps were bellow 70C and i see the notifaction saying the driver crashed and so i rebooted and than ganmes wernt proforming anywhere near they should than i went to geforce experience and it said it had no driver so im updating it atm. i want to know what caused it so i dont have the same thing happen again.

[Volbet]

Unstable overclocks will sometimes cause the driver to crash, so don't overclock so far the next time.

[Trophywolfe]

so what would be a stable oc for this card because i know i should be able to get at least 150 on the core because of maxwell and 500 on the memory

[Volbet]

so what would be a stable oc for this card because i know i should be able to get at least 150 on the core because of maxwell and 500 on the memory

All chips are different, and no overclock is a given. You might have been unlucky and got a chip that doesn't overclock well. I can't really tell you what a stable overclock would be, due to this reason.

You might just need to raise the voltage, or powerlimit, to attain the overclock-