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VArterJr

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16 years ago

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VArterJr

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June 21st, 2010 22:00

Dell XPS 1640, Processor Power Management and SpeedStep

Having a weird problem (I think) on my new Dell XPS 1640 laptop. It's the new i5 one. I was customizing the power plans around the Processor Power Management settings where you can set the minimum and maximum CPU speeds for different plans. I recently updated to BIOS A7 for this machine and all of the sudden those options disappeared from the Power Plans. I only see the Passive/Active Cooling options.

I fiddled around and found out if I disable SpeedStep in the BIOS they come back. Re-enabling SpeedStep causes them to go away again. You would think this would work in tandem.

Anyone else seen this?

Clean build of Windows 7 Ultimate with all current Dell x64 drivers installed. I tried re-installing the chipset drivers but it never does anything. Device manager doesn't show any red flags.

As a side note too ... when I try to install the Bluetooth driver it wants you to turn it on via the Bluetooth switch. Well that's the wireless switch which is one. BIOS is set to Bluetooth on ... weird that the driver just sits there waiting for Bluetooth to be enabled by its switch.

Thanks!

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