Filter
Top Products
073-1246 Rev. B 3
© 2009 Apple Inc. All rights reserved.
Filling Slots
If you are installing DIMMs
that are of the same size,
follow the order in the
tables on pages 3 and 4.
If you are installing
dierent-size DIMMs, also
refer to “Memory Slot
Utility” on page 4.
Quad-Core Memory
Quad-core computers
have four memory slots.
You can install 1 GB or
2 GB DIMMs for a total of
up to 8 GB of memory.
The processor’s memory
controller has three
memory channels. DIMM
slots 1 and 2 have their
own channels; slots 3 and
4 share a channel.
For optimal memory
bandwidth, all three
memory channels should
be used, and memory
should be balanced across
the three channels.
Note: Populating slot 4
slightly drops maximum
memory bandwidth,
but depending on the
applications used, overall
system performance may
benet from the larger
amount of memory.
If you have Fill these slots
Two DIMMs 1 and 2
Three DIMMs 1, 2, and 3
Four DIMMs 1, 2, 3, and 4