The Most Upgradeable Mac - Apple Mac Pro (Mid 2010) Review
Mac Pro - Wikipedia
32GB KIT (4 x 8GB) for (Mid 2010) Apple Mac Pro Series Workstation 12-Core Workstation 4-Core Workstation 6-Core DIMM DDR3 ECC Registered PC3-8500 1066MHz Dual Rank RAM Memory at Amazon.com
mac pro 2010 5,1 - Reset the vram four times : r/macpro
A1289 Mac Pro "Twelve Core" 2.93 (Westmere), 6GB Ram, 1TB
How to Upgrade Mac Pro Memory (2010-2012/MacPro5,1): EveryMac.com
Firmware hack converts 2009 Mac Pro to use faster RAM, CPUs | AppleInsider