Apple Mac Pro (Early 2009) - Manual (Page 96)

96 Chapter 5 What’s Under the Hood
The technical specifications of your Mac Pro are included in this section.
Specifications
Use System Profiler to find detailed information about your Mac Pro, including the
amount of installed memory, hard disk size, connected devices, and product serial
number. To open System Profiler, choose Apple () > About This Mac from the menu
bar, and then click More Info.
Processor and Memory Specifications
Processor
 One or two Quad-Core Intel Xeon series processors
 8 MB of shared L3 cache per processor
Random-access memory (RAM)
 Unbuffered dual inline memory modules (UDIMMs)
 PC3-8500, 1066 MHz, DDR3 SDRAM UDIMMs
 DIMM slots
 Eight slots available in an 8-core Mac Pro
 Four slots available in a quad-core Mac Pro
 Error-correcting code (ECC)
 72-bit wide, 240-pin ECC modules
 36 ICs maximum per ECC UDIMM
 Must conform to JEDEC specification (see page 41)
 Nonparity