Server walkthrough: Taking apart the HP Proliant D...
The DL380 G6 ships with two 750W power supplies but only needs one to run. They can easily be replaced in the event of a failure; simply press and hold the coloured tab while pulling on the black handle. The power supplies in the DL380 G6 are also compatible with other G6 servers such as the DL360.
Server walkthrough: Taking apart the HP Proliant DL380 G6 server