I have this exact (or at least, very similar) problem on my X200s. I have owned this laptop for nearly two years, and have never experienced this problem before.
However, the laptop was recently sent in for repair on several apparently unrelated issues, namely:
- broken webcam
- broken thinklight
- sticky keys (coffee spill)
- very high heat on the underside of the laptop under normal use
The service report came back with a bunch of replacements; namely, the following (this is the exact list from the repair summary sheet, I have no idea why there are duplicate entries).
- Camera
- Keyboard
- LCD Cable w/BT/Camera
- Motherboard
- Keyboard
- LCD Cable w/BT/Camera
- Camera
- Motherboard
- LCD Bezel
Now I am seeing frequent crippling slowdowns of the CPU during normal use, and even more frequent under heavy load. I first noticed it when zipping up a large folder (1.5gb); Windows 7 "Resource Monitor" showed the CPU maximum frequency dropping to 11% and staying there for several seconds, then bouncing back up to about 100%, and occasionally resting at around 40% for long periods of time.
I have installed and have run the ThinkVantage Toolbox diagnostics (CPU Test) several times, with the same result. ThrottleStop shows the CPU frequency hovering most often around 800MHz; this is on a 1.86GHz Core2Duo L9400.
I have tweaked the BIOS settings, tweaked some ThrottleStop settings, and messed around with Thinkpad Power Manager with no result.
This is my primary laptop. I am a multimedia developer. This problem makes this machine virtually useless for me, and is costing me money every day I am unable to use it.
What is Lenovo doing about this? How in the hell did a showstopper problem like this slip through production, and how in god's name did it get ADDED to my formerly functional machine?
My X200s is being returned to Lenovo warranty service anyway, since whoever installed the webcam neglected to remove the protective paper over the lens, rendering it useless, and installed a keyboard with a faulty backspace key.
What if anything can I tell the service depot in order for them to fix this? I really cannot afford to keep messing around with this fundamentally broken computer. I had thought that these were professional computing products, and I certainly do not appreciate having to jump through hoops and lose money while Lenovo gets its act together.