upgrade - I bought "ECC" ram for my MacPro1,1 but system

Aug 06, 2014 US7529112B2 - 276-Pin buffered memory module with enhanced A dual inline memory module (DIMM) includes a card having a length of about 151.2 to about 151.5 millimeters, a plurality of individual local memory devices attached to the card, and a buffer device attached to the card, the buffer device configured for converting a packetized memory interface. The card includes at least 276 pins configured thereon including a plurality of high-speed bus AMD Motherboards | Newegg

Aug 06, 2014

Buffered memory has a buffer chip between the address and data bus and the memory chips on the module. The result is a single memory module presents one "load" to the address and data bus. An unbuffered module presents one load PER CHIP to the address and data bus -- …

Aug 24, 2016

May 01, 2015 Advantages of ECC Memory - Puget Systems Registered (often referred to as "buffered") memory uses a technology that is often paired with, but not directly related to, ECC RAM. Registered memory has a "register" that resides between the RAM and the system's memory controller which lessens the load that is placed on the memory controller itself.