Amazon.com: OWC 48GB (6 x 8GB) PC8500 DDR3 ECC-R 1066MHz DIMMs for 8 Core or Better Mac Pro Early 2009 & Late 2010 'Nehalem' & 'Westmere' Systems & Early 2009 Xserve (OWC85MP3S8M48GK) : Everything Else
Apple Mac Pro 4,1 (Early 2009) | eBay
Apple Mac Pro A1289 MacPro4,1 (Early 2009/Nehalem) Quad Core Intel Xeon W3520 @ 2.66GHz / 3GB of 1066MHz DDR3 SDRAM / 1TB HDD / OS X Mountain Lion / NVIDIA GeForce GT120
Apple Mac Pro (Early 2009 and Mid 2010) - Speaker Replacement Instructions - Mac Pro (Early 2009 and
64GB Memory Upgrade Kit for 2009-2010 Mac Pro Tower
Apple Mac Pro Desktop Computer Workstation (Early 2009)
Mac Pro Early 2009 Teardown - iFixit
Mac Pro Early 2009 Teardown - iFixit
Apple Mac Pro A1289 Tower Computer Xeon W3520 (Early-2009) -
Apple Mac Pro "Quad Core" 2.66 (Early 2009) – MSU Surplus Store
Apple Mac Pro Early 2008 2 x 2.8GHz Quad-Core Intel Xeon (MA970LL/A) – UNICOM, Inc.
How to Upgrade Mac Pro Memory (Early 2009/MacPro4,1): EveryMac.com
Mac Pro "Quad Core" 2.66 (2009/Nehalem) Specs (Early 2009, MB871LL/A, MacPro4,1, A1289, 2314): EveryMac.com
2009 Mac Pro Supports Faster Ram, Cpus With Firmware - Mac Pro Early 2009 - Free Transparent PNG Download - PNGkey
Apple Mac Pro (Winter 2009) review: Apple Mac Pro (Winter 2009) - CNET
Mac Pro (Early 2009) | Low End Mac
Early 2009 Mac Pro 2.26GHz 8 Core – iPowerResale
The Most Upgradeable Mac - Apple Mac Pro (Mid 2010) Review
Mac Pro | 2009 | Eight Core 2.93 GHz - Techable.com
