Intel Desktop Board DG41TY Technical Product Specification 
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1.  When you apply power to the computer, legacy support is disabled. 
2.  POST begins. 
3.  Legacy USB support is enabled by the BIOS allowing you to use a USB keyboard to 
enter and configure the BIOS Setup program and the maintenance menu. 
4.  POST completes. 
5.  The operating system loads.  While the operating system is loading, USB 
keyboards and mice are recognized and may be used to configure the operating 
system.  (Keyboards and mice are not recognized during this period if Legacy USB 
support was set to Disabled in the BIOS Setup program.) 
6.  After the operating system loads the USB drivers, all legacy and non-legacy USB 
devices are recognized by the operating system, and Legacy USB support from the 
BIOS is no longer used. 
7.  Additional USB legacy feature options can be access by using Intel Integrator 
Toolkit. 
To install an operating system that supports USB, verify that Legacy USB support in 
the BIOS Setup program is set to Enabled and follow the operating system’s 
installation instructions.