01-25-2009 03:25 AM
I got a T400 with switchabale graphics (something i dont understand). I want my 9 cells to provide as long a run as feasible
without recharging. Which mode of graphics should i set it to and how do i do it?.
My blackbox (a bit heavy for me for carrying ) is a t400 with 9 cells and a wxga+, 2gb,120GB.
01-25-2009 03:54 AM - edited 01-25-2009 04:06 AM
Edited: Sorry, missed the first time that you were on XP. The answer below is for Vista only. For XP because of op sys limitations you don't have true switchable graphics capability. You can switch between the two graphics cards during BIOS setup only. To switch, reboot turning power off, then power on and on initial screen hold F1 to enter BIOS setup. Choose config and then display, and toggle graphics between integer (energy saving) and discrete (high performance). First time you switch you may have to reboot an extra time to allow the drivers to install.
If you have the latest release of the power manager (2.42) right click on it (the battery icon) and choose switchable graphics. If you are still on 2.37 or earlier release of the power manager left click instead. Once you have found the switchable graphics option switch between the two graphics cards by choosing energy saving and high performance GRAPHICS. (NOT similar options in the normal part of the power manager.)
Here is the Lenovo switchable graphics FAQ
T500: Vista 32, 2.8GHz, 4GB RAM, 15.4" 1680x1050, 500GB 7200rpm, ATI Radeon HD3650 + Intel 4500MHD. T42: XP, 1.7GHz, 2GB RAM, 14.1" 1024x768, 250GB PATA, ATI Radeon 7500.