Acer Network Device Altos R520 - Manual (Page 80)

3 System upgrade 70
Sparing configuration
Memory configuration overview
The system supports the following memory configuration that allow
flexibility in performance, redundancy, and ability to upgrade.
• Standard configuration
• Memory mirroring
• Memory sparing
Memory mirroring and memory sparing features are mutually
exclusive, only one of these memory modes can be enabled at one time
and not both at the same time.
Branch 0 Branch 1 Total Memory
Channel A Channel B Channel C Channel D
Physical
Memory Detected
by OS
DIMM
A1 DIMM
A2 DIMM
B1 DIMM
B2 DIMM
C1 DIMM
C2 DIMM
D1 DIMM
D2
512 MB
(Sparing) 512 MB 1 GB 512 MB
512 MB
(Sparing) 512 MB 512 MB
(Sparing) 512 MB 2 GB 1 GB
512 MB
(Sparing) 512 MB 512 MB
(Sparing) 512 MB 512 MB
(Sparing) 512 MB 512 MB
(Sparing) 512 MB 4 GB 2 GB
1 GB
(Sparing) 1 GB 2 GB 1 GB
1 GB
(Sparing) 1 GB 1 GB
(Sparing) 1 GB 4 GB 2 GB
1 GB
(Sparing) 1 GB 1 GB
(Sparing) 1 GB 1 GB
(Sparing) 1 GB 1 GB
(Sparing) 1 GB 8 GB 4 GB
2 GB
(Sparing) 2 GB 4 GB 2 GB
2 GB
(Sparing) 2 GB 2 GB
(Sparing) 2 GB 8 GB 4 GB
2 GB
(Sparing) 2 GB 2 GB
(Sparing) 2 GB 2 GB
(Sparing) 2 GB 2 GB
(Sparing) 2 GB 16 GB 8 GB