
2-12
C7Z87-OCE User’s Manual
Memory Support
The C7Z87-OCE supports up to 32GB of Unbuffered (UDIMM) DDR3 Non-ECC
1600/1333/1066 MHz in 4 memory slots. Populating these DIMM modules with a
pair of memory modules of the same type and same size will result in interleaved
memory, which will improve memory performance. Please refer to the table below:
Memory Population Guidelines
Please follow the table below when populating the C7Z87.
DDR3 Unbuffered Non-ECC (UDIMM) Memory
DIMM Slots per
Channel
DIMMs Populat-
ed per Channel
DIMM Type POR Speeds Ranks per DIMM (any
combination)
2 1 Unbuffered
DDR3
1066, 1333, 1600 Single Rank, Dual Rank
2 2 Unbuffered
DDR3
1066, 1333, 1600 Single Rank, Dual Rank
Notes
•Be sure to use memory modules of the same type, same speed, same
frequency on the same motherboard. Mixing of memory modules of dif-
ferent types and speeds is not allowed.
•Due to memory allocation to system devices, the amount of memory that
remains available for operational use will be reduced when 4 GB of RAM
is used. The reduction in memory availability is disproportional. See the
following table for details.
P1-DIMMB2 (Blue Slot)
P1-DIMMA2 (Blue Slot)
Towards the edge of the motherboard
Towards the CPU
P1-DIMMA1
P1-DIMMB1