XPS L501 i7 turbo boost issue

Hi,

I just got my XPS 15 with i7 740QM, 4GB ram, 9-cell battery and FHD screen yesterday. As I need W7 Pro. for school and have access to a free copy I did a clean install just after recieving it.

When finished installing all the drivers (I downloaded them from dell) I looked thru the device manager.
Under System Devices I found that "Intel Turbo Boost Tecnology driver" was marked with a little ! and repported not to function properly. When I asked it to update the drivers it told me that it had the latest drivers.

I gave the Dell tech. a call today. He asked me to remove the driver and install the driver that was on the diver CD. So I did.
Now the "Intel Turbo Boost Technology Driver" has vanished all together from System Devices.

This got me a little worried (confused) so I installed the intel side bar gadget and tried to stress the CPU, encoding video, creating archives and doing benchmarks. The highest reading I got from the CPU was 2,79GHz. It would climb to that quite rapidly then stay there.

So, shouldn't it go all the way to 2,93GHz?
And if so, any idea what I could try next?


Ps. I'm sorry if I didn't explaing good enough or wrote far to much.. This is my first windows laptop for 3 years. It's all a bit new.

 

After you installed the driver from the CD it might have changed the name of it in device manager. As long as there are no more exclamation marks you should be good to go. Restart your pc after the driver installation also. I think you can an app like prime95 that will push your CPU to the limits and tell you the clock speed

 

Thank you very much for your help!

When I tried a bechmark with this the intel monitor peaked at 2,91GHz. Not sure how to read the results from the software. But that is good enough for me really. Now I can rest assure that it works like it should!

Probably I didn't do a good enough job when stressing it myself. As to why the other benchmarkingsoftware stopped at 2,8GHz, I don't know.

Again, thanks so much for the help!