American Megatrends Olympus III, Руководство пользователя

Страница: 26 / 146

American Megatrends, Inc., Olympus III User’s Guide (Series 875)
16
Step 2 Install Memory,
Continued
Supported Memory
The following table is a list of SDRAM types that are supported per bank:
DIMM
Capacity Configuration DDR SDRAM
Density
DDR SDRAM
Organization
Front-side DDR SDRAM
Organization
Back-side Number of
DDR SDRAM
Devices
64 MB Single-Sided 64 Mbit 8 M x 8 empty 8
64 MB Single-Sided 128 Mbit 8 M x 16 empty 4
128 MB Double-Sided 64 Mbit 8 M x 8 8 M x 8 16
128 MB Single-Sided 128 Mbit 16 M x 8 empty 8
128 MB Single-Sided 256 Mbit 16 M x 16 empty 4
256 MB Double-Sided 128 Mbit 16 M x 8 16 M x 8 16
256 MB Single-Sided 256 Mbit 32 M x 8 empty 8
256 MB Single-Sided 512 Mbit 32 M x 16 empty 4
512 MB Double-Sided 256 Mbit 32 M x 8 32 M x 8 16
512 MB Single-Sided 512 Mbit 64 M x 8 empty 8
1024 MB Double-Sided 512 Mbit 64 M x 8 64 M x 8 16
Memory Configuration
The Olympus III motherboard has the following features for enhancing memory
throughput:
•
Dual Channel memory interface. The Olympus III motherboard has two
memory channels (CHA and CHB), each with two DIMM sockets.
•
Dynamic Addressing Mode. Dynamic mode minimizes overhead by reducing
memory accesses.
Characteristics of Dual and Single Channel Configuration with and without
Dynamic Mode:
Throughput
Level Configuration Characteristics
Highest Dual Channel with Dynamic Mode All DIMMs matched
Higher
Dual Channel without Dynamic
Mode •
DIMMs matched from Channel
A to Channel B
•
DIMMs not matched within
channels
Lower
Single Channel with Dynamic Mode Single DIMM or DIMMs matched
within a channel
Lowest
Single Channel without Dynamic
Mode DIMMs not matched
Cont’d