Optical drives

Your Mac Pro comes with one or two DVD+R DL/DVD±RW/CD-RW SuperDrives in the optical drive carrier. To replace an optical drive, see ÒReplacing the Optical DriveÓ on page 42.

Hard disk drive

Your Mac Pro comes with up to four hard disk drives installed in the drive carriers. To install or replace the hard disk drives, see ÒInstalling Internal Storage DevicesÓ on page 38.

PCI Express slots

Your Mac Pro has three PCI Express expansion slots. To install PCI cards in slots 2 through 4 to expand your computerÕs capabilities, see ÒAdding PCI Express CardsÓ on page 47.

Battery

Your Mac Pro uses an internal backup battery. If your Mac Pro has trouble starting up, or if the system date and time are frequently incorrect, you may need to replace the battery. See ÒReplacing the Internal Backup BatteryÓ on page 50.

Double-wide PCI Express graphics slot

Connect up to two displays to the graphics card in the PCI Express graphics slot (slot 1). You can replace the card in this slot and install additional graphics cards in PCI slots 2 through 4. See ÒAdding PCI Express CardsÓ on page 47.

Memory cards

Your Mac Pro has two memory cards. Each card holds up to 4 FB-DIMMS, for a total of 8 DIMMs. To add more memory, install 667MHz FB-DIMMs in pairs on the memory cards. See ÒInstalling MemoryÓ on page 32 for information about the specific type of memory used in Mac Pro.

Chapter 2 Getting to Know Your Mac Pro

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Asus MA356*/A manual Optical drives