The 904HD are supported.

You have to install it with the Classic Installer, follow the [http://www.debian.org/releases/stable/i386 Debian Guide], in depth see [http://www.debian.org/releases/stable/i386/ch04s03.html Chapter 4, Section 3 - Preparing Files for USB Memory Stick Booting]. The wireless works only with Madwifi, you can see ["DebianEeePC/HowTo/UseUpstreamAtherosModules"] for download the latest driver available for the Atheros wifi chipset and see ["DebianEeePC/HowTo/Wifi"] to configure it.