Power Mac G5 Digi 002 Rack Requirements
With Pro Tools LE 7.0/7.1 for Mac OS X 10.4 (Tiger)
Supported Power Mac G5 Computers
*Although these models are qualified with Pro Tools LE 7.0, Pro Tools LE 7.1, Music Production Toolkit, and DV Toolkit 2, they are not guaranteed to achieve maximum track count with Music Production Toolkit or DV Toolkit 2.
Dual Monitor Graphics Cards
All dual monitor cards which ship as standard equipment with qualified Apple Power Mac G5 models at the top of this page are supported.
There is a known issue with low hardware buffer sizes and the multiprocessor RTAS engine of Pro Tools 7 (HD, LE, and M-Powered). Specifically at buffer sizes lower than 512, multiprocessor setups of Pro Tools can show a marked INCREASE in CPU utilization as you enable more processors. While dual processor models also exhibit this behavior somewhat, it is more noticeable with 3 or 4 processors enabled on the Power Mac Quad G5.
Digidesign is aware of the problem, and is actively working on the issue. We have run a number of tests, and while we continue to investigate a fix, our tests have turned up a few situations where this problem is likely to manifest, and a workaround for those scenarios.
At buffer sizes 512 and higher, we recommend you use the maximum number of processors. More processors will give you more cycles to run additional RTAS plug-ins and more tracks with little additional overhead from Pro Tools' management of additional processors.
We recommend the following setting for existing or new sessions that require lower buffer sizes:
Once you are mixing, you may use all processors, and restore any inactive tracks/plug-ins. You can then increase the HW buffer size to 512 or higher to prevent errors.
We are fully engaged in this investigation and we will update our customers as we have more information.
DV Tookit 2 & Music Production Toolkit Options — Maximum Track Count Information
The purchase of either of these options expand a Pro Tools LE system from 32 total voiceable tracks to up to 48 mono or 48 stereo tracks at up to 96 kHz (interface permitting*). In order to reliably achieve maximum track count, Digidesign recommends the following on Mac OS X:
*Maximum Sample Rate
Energy Saver Settings for Power Mac G5
For optimal Pro Tools performance, you must set Processor Performance (located in System Preferences > Energy Saver > Options) to "Highest". Updating your Mac OS may reset this to the default setting: "Automatic". After updating your Mac OS, check to make sure this is set to "Highest".
Apple's Mac OS help documentation provides the following info on Energy Saver Processor settings:
Pro Tools Does Not Support Sleep Mode
In the Macintosh System Preferences, launch Energy Saver, click the Sleep tab, and disable all Sleep features. Set "Put the computer to sleep when it is inactive" to Never. Do not manually put your computer to sleep when running Pro Tools.