Product: 2slot + ExpressCard
Computer: MacBook Pro (Unibody model)
Operating System: 10.5.X

Problem:
I have some troubles with my PCI EXPANSION CHASSIS 2 SLOT, ExpressCard /34 and a new MacBook PRO 15 PRO (Unibody model). When I plug my ExpressCard /34 , power led of my MacBook Pro turns on but it is not booting. I must force MacBook to turn off and reboot to work correctly.

Troubleshooting:

1. Does it happen with or without chassis attached.
I’ve only seen it happen without the chassis attached. With chassis attached, it was behaving normal.

2. Try power on the chassis with cable attach to the expresscard/34 module before inserting in the macbook pro. See how that goes too.

If you are still having problem, then you must ship the Ec34 to Magma to be reworked.