[. . . ] Mac Pro User's Guide
Includes setup, expansion, and troubleshooting information for your Mac Pro computer
Apple Computer, Inc. Under the copyright laws, this manual may not be copied, in whole or in part, without the written consent of Apple. The Apple logo is a trademark of Apple Computer, Inc. , registered in the U. S. Use of the "keyboard" Apple logo (Option-Shift-K) for commercial purposes without the prior written consent of Apple may constitute trademark infringement and unfair competition in violation of federal and state laws. [. . . ] 2 Gently press down the front panel covering the front of the drive tray. 3 Carefully insert the end of a straightened paper clip into the small hole beneath the drive tray. Â If you recently installed memory, a PCI expansion card, or another internal component, make sure that it is correctly installed and that it is compatible with your computer. Â If the status light still flashes, determine the number of flashes to identify the problem: Â One short flash followed by a longer off period: No valid memory. Â Three short flashes followed by a longer off period: Failed memory.
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Problems with Software
When an application "freezes" or does not respond, Mac OS X provides a way to quit the application without restarting your computer. Quitting a frozen application may allow you to save your work in other open applications. To force an application to quit: 1 Press Command (x)-Option-Esc or choose Apple ( ) > Force Quit from the menu bar. 2 Select the name of the application you want to quit in the Force Quit Applications dialogue. Â Use Software Update to ensure that you have the latest drivers, bug fixes, and other updates. Â For problems with software from a manufacturer other than Apple, contact the manufacturer. Â Look in Mac Help (in the Help menu) for instructions and troubleshooting information. Â For the latest troubleshooting information and software updates, go to the Apple Support website at www. apple. com/support.
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Keeping Your Software Up to Date
You can connect to the Internet and automatically download and install the latest free software versions, drivers, and other enhancements from Apple. When you are connected to the Internet, Software Update checks Apple's Internet servers to see if any updates are available for your computer. You can set your Mac to check the Apple servers periodically and download and install updated software. 2 Click the Software Update icon and follow the onscreen instructions. Â For more information, search for "Software Update" in Mac Help. Â For the latest information about Mac OS X, go to the Mac OS X website at www. apple. com/macosx.
Problems with AirPort Wireless Communication
If you have trouble using AirPort wireless communication: Â Make sure you have properly configured the software according to the instructions that came with your base station. Â Make sure the computer or network you are trying to connect to is running and has a wireless access point. Â Make sure you are within antenna range of the other computer or the network's access point. Nearby electronic devices or metal structures can interfere with wireless communication and reduce this range. Repositioning or rotating the computer may improve reception.
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 Check the AirPort signal level. You may have up to four bars in the AirPort status icon in the menu bar. [. . . ] See the service and support information that came with your Apple product. Or, consult an experienced radio/television technician for additional suggestions. Important: Changes or modifications to this product not authorized by Apple Computer, Inc. , could void the EMC compliance and negate your authority to operate the product. This product has demonstrated EMC compliance under conditions that included the use of compliant peripheral devices and shielded cables between system components. [. . . ]