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OWC Memory for Mac Pro Quad Xeon fully meets Apple's specifications with special attention to proper thermal specifications.
• 240-pin SDRAM DIMM
• 2048M x 72, Dual Rank ECC Memory Module
• Data Rate - 1333MHz
• Module Bandwidth 10.6GB/s
• CAS 9-9-9-24
• Voltage 1.5V
• Apple Specified Thermal Sensor
• RoHS Certified
Important OWC Note
OWC p/n OWC1333D3MPE8GB (8GB modules) and OWC1333D3MPE16G (16GB modules) require that all installed modules be of the same p/n OWC 8GB and/or 16GB modules. Other existing Apple or 3rd party 1GB, 2GB and 4GB modules are not supported for use with these kits and need to be removed when these modules are added. To utilize over 32GB of memory in your Mac Pro using 10.6.x or greater, you must boot into 64 bit mode. In 32 bit mode, all installed memory will show in system profiler but only up to 32GB will be actively used by the computer.
This kit is compatible with dual processor (8-core & 12-core) Mac Pro models ONLY. While single processor (Quad and 6-core) Mac Pro models do have 4 memory slots available, This kit is not compatible due to an OS system limitation.
About the Apple Specified Thermal Sensor
Ensuring maximum performance, reliability and operational feedback - all OWC DDR3 ECC Modules for the Apple Mac Pro 'Nehalem' process models feature utilization of Apple qualified components including the inclusion of the Apple qualified Thermal Sensor EEPROM.