Undervolting software for a toshiba i7 740QM processor?

I have searched for at least an hour, and cannot find a program that undervolts this type of processor. I'm trying to get the heat to go down, because when I'm playing some games the computer will just shut off unexpectedly, and I'm guessing it's because it overheated. Can someone please help? And sorry if this is in the wrong forum, I couldn't figure out which one was best so I just chose the one that said software.

 

Several options:

1) SpeedFan

2) Laptop cooler

3) Lower the CPU performance in Power Options

 

Ok, well I tried to use speedfan, but I couldn't figure out how to make that increase the fan speed or decrease the voltage. Doesn't it burn the fan out sooner though if you increase the fan speed? Also, what do you mean by a laptop cooler? I have a fan under my laptop that runs all the time when it's on, so I don't know if that's what you meant or not. Also, I couldn't find a way to lower the CPU performance in Power Options. All it had was options for when to turn the screen off and when to put it to sleep. There were some advanced options too, but none of them decreased the cpu performance.

 

You need to watch youtube how to disassembly guodes foe tour laptop and do it. Clean the fan fro dust, clean grill and do a repaste job.
Before doing that yoy should monitor your temperature while gaming using gpu-z or HWINFO.

 

Well I was going to try to open it up - I watched a vid on youtube about how to do it, but then I accidentally stripped one of the screws on the bottom. So now it's basically impossible to open it up. And, even if I wanted to it looked like it was really complicated trying to open it up, like with moving around wires and ribbons that could potentially get ripped out and make the computer not work. I'll try gaming with speedfan and see how hot it gets.

Edit: I guess I was able to play a 21 turn game of delve deeper, but at the end the temp was 97, and when it's idling or doing little work it tends to hover around 58-64. I did find a button that says Pwm1 on the speedfan program, and it has a % thing that you can increase or decrease. Is that the control for the fan?

Edit: Less than 10 minutes after the game was over the temp is down to 70.

 

There's a nice HELP file in SpeedFan. Press F1 within SpeedFan and it will walk you through the process of setting it up. The easiest and quickest way to lower the heat is to drop your CPU maximum power state from 100%.

 

Ok so I read the help section, and found out pwm stands for pulse width modulation. But I was just wondering what increasing the percent number next to it does? It did seem to help it not overheat when I increased it to 10% and then 15%, but it seems like even after I put it to 0 it was still cooling off a lot more. Also, the fan doesn't show up in the places where the fan is supposed to be in the speedfan program, and the same with the voltages. The bottom three boxes and the box to the left in the middle are all empty. Do you know what is supposed to be there?

Also, I checked right when I woke the computer up and all the cores were 35-39C right when it woke up. By now they're all up to 54-55C.