1. According to 802.3af-2003 standard PoE device max supported power is 15.4W. Phihong PoE injectors with power over 15.4W just use the same detection and voltage control as 802.af-2003 complaint devises but they are NOT 802.3af complaint as they use different max load current control and probably d...

We had similar problem. Upgrade your BIOS to 2.16 http://www.routerboard.com/files/rb-2.1 ... 3-2.16.fwf and switch CPU frequency to 266MHz. It should help.

You forgot to power cycle your router.

5VDC connector is not used, because there is no 5V converter on the board (it is unloaded).

3A 36W max

Looks like it had lightning strike or ESD on Ether1. You should send it to RMA.

RB333 is the only Routerboard with input voltage monitor yet.

Try to monitor system recourses via telnet or serial port without Winbox started. You will see the difference.