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- Low processing power on battery
- just bob
July 30, 2008, 3:48 pm
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the previous Dell laptop product releases - we think when Intel eliminated
the SpeedStep application - we lost the ability to run laptops at full
power while on battery.
To prove this we did a test where we timed a download of files from a
professional memory card via USB 2.0 interface and found while on battery
the download took twice as long. We used the same card and card reader,
SanDisk Extreme III 8GB CF with SanDisk professional USB 2.0 reader, for
both tests. We also processed about 1000 RAW digital images using
Photoshop CS3 and doing a test on battery vs. using the AC adapter we found
it takes more than twice as long.
The laptop is configured using the "Quickset" application at "Maximum
performance" and also tried using the Screensaver advanced power setting of
"Always on". CPU on the test model is Core 2 Duo T7800 at 2.60Ghz with 3GB
of RAM running WindowsXP Pro Sp3.
Again, if I remember right, the older Dell laptops, going back to the D800
and previous models where SpeedStep was employed, we could force the
laptop to run at the same full processing power on battery as it ran on AC.
Please let me know if you think my findings are typical. I am open to