As to the tools, the only tool required for this procedure is a Phillips #1 screwdriver. For Bottom drive: Press the Option and Eject keys. Note: To eject the drives, proceed as follows: For Top drive: Press the Eject key. If the computer has only one optical drive, it is installed in the top position. This model can accommodate two optical drives in the optical drive bay.Regarding the tools, the only tool required for this procedure is a Phillips #1 screwdriver. An important note: To install SAS drives in a Mac Pro (Early 2008) computer, you must also install the optional Mac Pro RAID Card. The hard drives you install must meet the following specifications: type: Serial Attached SCSI (SAS) or Serial ATA (SATA) 3 Gb/s Width: 3.9 inches (102 mm) Depth: 5.7 inches (147 mm) Height: 1.0 inch. Alternatively, you can install up to four SAS drives. It is possible to install additional SATA drives in the second, third, and fourth hard drive bays. In most configurations, a single SATA hard drive occupies the far left bay (bay 1). Еру Mac Pro Eight Core 3.2 computer can accommodate four hard drives in its four internal hard drive bays.It also uses a more advanced vector engine, faster frontside buses (1.6 GHz instead of 1.33 GHz), faster memory (800 MHz instead of 667 MHz), support for optional faster Serial Attached SCSI drives (with the installation of the Mac Pro RAID card), two 16-lane PCIe 2.0 slots. Compared to the original Mac Pro, this model uses a more advanced architecture with faster and more efficient processors with larger level 2 caches.

Dimensions: 20.1 in height, 8.1 in width, 18.7 in depth.Connectivity: Standard AirPort 802.11a/b/g/n (optional).Display Support: According to Apple’s reports, this model can support up to eight 30-inch displays.

Apple mac pro a1186 specs