Guaranteed compatible upgrades for:

Apple Mac Pro (MacPro1,1) Late 2006 2.0/2.66/3.0GHz

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Samsung 870 Evo 4TB 2.5" 7mm SATA III Internal SSD

WD Black 4TB 7200RPM 128MB Cache SATA 6.0Gb/s 3.5" Desktop Internal Hard Drive

Crucial MX500 2TB 2.5" 7mm SATA III Internal SSD (with 7mm to 9.5mm spacer)

Crucial MX500 1TB 2.5" 7mm SATA III Internal SSD (with 7mm to 9.5mm spacer)

Crucial MX500 500GB 2.5" 7mm SATA III Internal SSD (with 7mm to 9.5mm spacer)

Crucial MX500 250GB 2.5" 7mm SATA III Internal SSD

NewerTech AdaptaDrive 2.5" to 3.5" Drive Converter Bracket

System Specifications

Maximum Memory:

Expansion:

Standard Memory:

CPU/Chipset:

Bus Architecture:

Mfr's System P/N's:

Upgrade Path:

Single module configurations will not work. At least two RAM modules must be installed. Any combination of 2, 4, and 8GB kits can be installed to reach configurations up to 32GB.

Comments:

Up to 32GB of RAM can be installed. Single module setups will not work and there must be at least two RAM modules installed in the machine. The modules must be ECC, fully buffered with custom Apple-specific heat sinks. No tools are required. Follow this guide to install the RAM modules.

For a super-high speed bootable storage solution, you can't go past a M.2 PCIe (AHCI) SSD. It's compatible in any version of MacOS and in any of the square-shaped Mac Pro models from 2006 up to 2012, and also supports dual-SSD RAID 0 configurations for even higher speeds. See the extensive review on how well these SSD's perform on barefeats.com

Look left for the supported models of the Samsung XP941 or SM951 which, when combined with the Lycom DT-120 PCIe adapter card, allow you to install and boot one (or more) of these SSD's in a spare PCIe slot. To install this card, see the PCI Express card install guide for more information, and checkout the DT-120 product page for an extensive video on how to populate it with a blade SSD.

The Mac Pro 2006 models have a 250GB 3.5-inch factory HDD with a 3 Gb/s SATA port, with 3 additional HDD storage bays. Due to the different screw hole patterns on larger capacity drives, only the 1/2/4TB WD Blue or WD Black models are compatible, and unfortunately a replacement for the drive sled to accomodate the different screw hole patterns is only available for the 2009 and later model Mac Pro. To upgrade the existing HDD, purchase a larger 3.5-inch HDD and follow this guide to install it.

To upgrade the factory 3.5-inch HDD to an SSD, purchase any 2.5-inch SSD. You will also need either the OWC Adaptadrive or Angelbird SSD Bay to properly adapt your new SSD to fit the Mac Pro drive sled. Follow this hdd guide to install the SSD as the procedure is the same.

To clone your existing OS/app setup from your old HDD to the new HDD / SSD, purchase a cloning cable or 2.5-inch HDD/SDD enclosure to connect your new SSD to your mac, (or just install it in a spare internal drive bay) then use the Super Duper app to perform the clone, then switch the drives or change the startup volume. If you don't plan to keep them installed internally, your old 3.5-inch HDD's can be housed in this 3.5-inch HDD enclosure.

The MacPro1,1 factory GPU is a NVIDIA GeForce 7300 GT with 256MB DDR2 VRAM. Since this Mac Pro only supports up to OSX Lion (10.7.5), only older GPU upgrades are supported. One such option (if you can still find one) is the AMD Radeon HD 6870 with 1GB DDR5 VRAM which offers considerable performance improvements.

This will boot in OSX Lion out-of-the-box, but like most all non-native cards that haven't been custom-flashed, you won't see any display until the driver loads. So if you want to run bootcamp, then you will need to custom flash the card to be able to see the boot menu. Google that for more info.