FireWire Bus Power - How Much Power?
Is there any way to find out how many watts the FireWire bus power is on a Mac?
I have one of these:
http://www.wiebetech.com/products/ultragbplus.php
It's an external bus powered FireWire 800 drive. I have the 500GB version. It runs flawlessly on bus power on my PowerBook G4 17" using the FW 800 cable, and even runs fine on bus power when I try the FW400-to-FW800 cable.
On my Intel iMac Core Duo 20" though, it wil not run on bus power using the very same 400-to-800 cable so I guess the bus power on the iMac has... eh... less power.
It works fine on an iMac G5 using 400-to-800 but on the Intel iMac I have to attach the optional power supply to use it.
QUESTION: Has the bus power on the MacBook Pro changed too, is it lower than on the PowerBook G4???
This IS a strange one...
Intel iMac 2gHz/500/2GB/20" Mac OS X (10.4.6)
I have one of these:
http://www.wiebetech.com/products/ultragbplus.php
It's an external bus powered FireWire 800 drive. I have the 500GB version. It runs flawlessly on bus power on my PowerBook G4 17" using the FW 800 cable, and even runs fine on bus power when I try the FW400-to-FW800 cable.
On my Intel iMac Core Duo 20" though, it wil not run on bus power using the very same 400-to-800 cable so I guess the bus power on the iMac has... eh... less power.
It works fine on an iMac G5 using 400-to-800 but on the Intel iMac I have to attach the optional power supply to use it.
QUESTION: Has the bus power on the MacBook Pro changed too, is it lower than on the PowerBook G4???
This IS a strange one...
Intel iMac 2gHz/500/2GB/20" Mac OS X (10.4.6)
