Quote:
Originally Posted by xaipemw  This is directly from Presonus' website: PreSonus Note: Due to a circuit design change, Mac Book Pro laptop computers will not supply sufficient power over the FireWire bus to initially boot up the FireBox. Once the FireBox has beeen initially powered on with the included external power supply, you may disconnect the external power supply, the FireBox can then be bus-powered. |
The lack of bus power is not related to the FW chipset - it affects all recent MBPs.