If the board is supplied with 5V only (typically without a bus connection), the 3.3V are generated on the board and fed to the backplane (3A max.) No external 3.3 V voltage may be applied in that case!
MTBF: 238,053h @ 40°C according to IEC/TR 62380 (RDF2000)
Dimensions: conforming to CompactPCI specification for 3U boards
Front panel: 4HP with ejector
Temperature range (operation):
2.2GHz Core 2 Duo T7500: 0..+60°C
Conditions: airflow 1.5m/s, typical power dissipation 38W, with Windows XP operating system, 1 Gb Ethernet and hard disk, without CPU clock reduction