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28 Posts

08-20-2008

Singapore

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  • Posts: 28
  • Registered: ‎08-20-2008
  • Location: Singapore
  • Views: 154
  • Message 1 of 3

Battery life reduced when running vista x64

2009-02-10, 6:41 AM

I have a dual boot T400 (2768-AA6) which can boot either windows XP SP3 or Vista x64 business. Battery is the 6 cell. I have all the most recent drivers installed.

 

Currently, on the same power manager configuration, i am getting 1.5-2 hours of battery life less on the vista compared to xp. I could at most squeeze 3.5hrs in vista (with processor and screen brightness set to minimum), while on xp i can comfortably achieve 4-5 hours. Activities that i do are approx the same, web-surfing, some word processing. Experience are all with integrated graphics. I turned off superfetch in vista.

 

Is it because x64 instructions are less effecient? or are there any problems with the drivers? Or am i just an anomally? Please share your battery life experience with vista 64.

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16 Posts

01-23-2009

United Kingdom

87 Signins

799 Page Views

  • Posts: 16
  • Registered: ‎01-23-2009
  • Location: United Kingdom
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Re: Battery life reduced when running vista x64

2009-02-10, 14:22 PM

Hello,

 

Do you have Windows Aero turned on? It's known to be mainly attributabe to a decrease in battery runtime.

Alvin.C
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28 Posts

08-20-2008

Singapore

26 Signins

154 Page Views

  • Posts: 28
  • Registered: ‎08-20-2008
  • Location: Singapore
  • Views: 154
  • Message 3 of 3

Re: Battery life reduced when running vista x64

2009-02-10, 15:54 PM
yea aero's on, but i disabled most of the animations. I'll try it out without aero...
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