line of workstation and server computers

Apple introduced the Mac Pro as a fully customizable quad-core computer. The buyer can choose from two dual-core Intel Xeon Woodcrest at 2.0, 2.66, or 3.0 GHz. As little as 1 GB of RAM or as much as 16 GB. 160, 250, or 500 GB in drive bay one, and optionally 500 GB in bays 2-4.

WARNING: If you have updated boot.efi on a MacPro1,1 or MacPro2,1 so you can run Mac OS X 10.11 El Capitan , DO NOT INSTALL SECURITY UPDATE 2018-001 or later. According to Greg Hrutkay of Hrutkay Mods ( see warning video ), it breaks boot.efi on the 2006 and 2007 Mac Pros that have been thus updated.

For graphics, Nvidia GeForce 7300 GT is the default, and you can add one, two, or three more. Or choose an ATI Radeon X1900 XT or Nvidia’s top-end Quadro FX 4500.

Specs (via Low End Mac)

• Bus: 1.33 GHz
• Performance: Geekbench 2 (Leopard): 5383 (3.0 GHz 4-core), 4839 (2.66 GHz), 3693 (2.0 GHz) Geekbench 2 (Tiger): 5574 (3.0 GHz 4-core), 5018 (2.66 GHz), 3910 (2.0 GHz)
• Ram: 1 GB, expandable to 32 GB using pairs of 667 MHz DDR2 fully buffered (FB-DIMM) ECC RAM in 8 slots
• L2 Cache: 4 MB on-chip shared cache per dual-core processor
• Hard Drive: 250 Serial ATA 7200 rpm standard subtract $75 for 160 GB drive add $200 for 500 GB hard drive add $400 per additional 500 GB hard drive
• Video: Nvidia GeForce 7300 GT with 256 MB RAM in double-wide 16-lane PCIe slot 2, 3, or 4 GeForce 7300 optional (add $150 per card) ATI Radeon X1900XT with 512 MB RAM optional (add $350) Nvidia Quadro FX 4500 with 512 MB RAM optional (add $1,650)
• Ethernet: 2 independent 10/100/gigabit ports
• Usb: 5 USB 2.0 ports (2 on front)
• Firewire: 2 FW400 ports (1 on front), 2 FW800 ports (1 on front)
• Pram Battery: 3.6V half-AA
• Weight: 42.4 lb. (19.2 kg)
• Cpus: two 2.0, 2.66, or 3.0 GHz dual-core Intel Xeon Core 2 CPUs, Socket 771 makes upgrades possible with Xeon 51xx series CPUs that have a 1333 MHz bus, as well as the x5355 and x5365.
• L3 Cache: none
• Hard Drive Bus: 3 Gbps SATA Rev. 2
• Optical Drive Bus: UltraATA
• Pci Express: 3 open full-length slots
• Sata: 4 independent buses
• Microphone: standard 3.5mm minijack, compatible with line-level input, not compatible with Apple’s PlainTalk microphone
• Wifi: optional 802.11g AirPort Extreme
• Bluetooth: optional
• Warning: If you have updated boot.efi on a MacPro1,1 or MacPro2,1 so you can run Mac OS X 10.11 El Capitan ,