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logoi
May 1, 2003, 05:01 AM
hi,

i just read on www.ppcnerds.org (http://www.ppcnerds.org) that some G4 powermac already have an usb 2 controllers. they explain how to understand if you have it or not. it seems they can already work under linux.
can anyone confirm/try this?

jholzner
May 1, 2003, 06:03 AM
Originally posted by logoi
hi,

i just read on www.ppcnerds.org (http://www.ppcnerds.org) that some G4 powermac already have an usb 2 controllers. they explain how to understand if you have it or not. it seems they can already work under linux.
can anyone confirm/try this?

Yup, it's true indeed!! Here's a MacNN article about the unofficial drivers available to activate...'cause you don't get USB 2 under the Apple drivers. There's also a link to the original article.

http://www.macnn.com/news/19183

Sun Baked
May 1, 2003, 07:10 AM
This is the Revision B MDD PowerMac (jan 03), it has some motherboard changes that were included with the addition of FW800 -- ie a PCI USB controller chip.

http://developer.apple.com/techpubs/hardware/Developer_Notes/Macintosh_CPUs-G4/PowerMacG4/art/jos01.gif

This differs from the Revision A MDD PowerMac (sept 02), which has NO USB 2 chip.

http://developer.apple.com/techpubs/hardware/Developer_Notes/Macintosh_CPUs-G4/PowerMacG4Sept02/art/moj01.gif

According to the document found here (http://developer.apple.com/techpubs/hardware/hardware2.html) -- it's the only machine with this chip.

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Note: If you have the Revision B PowerMac with FW800 & Airport Extreme capability, you may have a USB2 controller chip -- if you have any other machine besides the new iPod (most likely not).