Firewire 400 doesn't appear

I'm using a Macbook 13" white running 10.5.8. Trying to connect a Glyph external hard drive using a firewire 800 to 400 cable to Macbook. Cable and Glyph work on an older mac but my Macbook doesn't see it. Any ideas?

Hello,
Reset the Firewire bus
If your Firewire or USB isn't recognizing any device.  A solution which has worked for some whose hard drive became invisible in 10.4 was simply to follow these four steps to reset the Firewire/USB bus:
1. Shut the machine down.
2. UNPLUG the power lead to the computer and any firewire/USB drive.
3. leave it for 10 minutes.
4. Connect back up and reboot.
http://www.macmaps.com/firewirebug2.html
Not sure, but a Laptop may need the Battery removed as well as power.
Message was edited by: BDAqua

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