bob

Install the Intel Graphics 4600 drivers.

Can anyone else help?

CWhat about the unlocked bios? Does anyone know if there are fan speed settings in it?

SpeedFan - Access temperature sensor in your computer

Try this, not sure about your model, but you can use this, also boot in to bios setup see if there are any fan settings there (doubt it as it is a laptop).

90c is Fine if you are doing something for limited time, however try to keep it below 80c.

I have a Y510p with 4700mq.

I'm trying to do some video encoding but I want it to go faster. I'm trying to force turbo on when encoding and I need to know what are the safe temperature limits because I'm reaching around 90c on a haswell at 3 gigahertz.

If someone could tell me how to change the fan speed, it would be a lot easier.

I know its of of place but can i upgrade to Gt750>?

I think you'll need more explanation...

Would I have to disassemble the entire laptop if I wanted to get to the heatsink?

My guess is that removing the SLI video card and installing Intel graphic drivers after rebooting will fix your issue but I'm not sure...