Recently upgraded my Mac Pro 2012 (Westmere) with 3x16G of RAM. Hoped I could use the old RAM too and got a quick lesson on DDR2 and DDR3 compatibility.
Not satisfied with 48G I bought two more sticks (2x8G), DDR3, same manufacturer, same specs...but when I put them in the system along with my 3x16 the computer gave me the dreaded blinking white memory error light.
Try as I might I could find no real difference (besides Gig size) between my original purchase and the new set. Yet no matter how I configure them the system won't start. I tried the 2x8G by themselves, no problem...so it's not the RAM itself. Is there some other hidden spec I should be looking for?
Purchase 1: OWC 48GB ( 3x16GB ) PC3-10600 DDR3 ECC 1333MHz SDRAM DIMM 240 Pin Memory Upgrade kit
Purchase 2: OWC 16GB ( 2x8GB ) PC3-10600 DDR3 ECC 1333MHz SDRAM DIMM 240 Pin Memory Upgrade kit
Not satisfied with 48G I bought two more sticks (2x8G), DDR3, same manufacturer, same specs...but when I put them in the system along with my 3x16 the computer gave me the dreaded blinking white memory error light.
Try as I might I could find no real difference (besides Gig size) between my original purchase and the new set. Yet no matter how I configure them the system won't start. I tried the 2x8G by themselves, no problem...so it's not the RAM itself. Is there some other hidden spec I should be looking for?
Purchase 1: OWC 48GB ( 3x16GB ) PC3-10600 DDR3 ECC 1333MHz SDRAM DIMM 240 Pin Memory Upgrade kit
Purchase 2: OWC 16GB ( 2x8GB ) PC3-10600 DDR3 ECC 1333MHz SDRAM DIMM 240 Pin Memory Upgrade kit
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