Acer Altos R701 - Manual (Page 44)

2 Installation Procedures 34
Memory
Only DDR-200 or DDR-266 compliant SDRAM is supported by the server
board. Install from 256 MB to 12 GB of registered, ECC memory, using
up to six DIMMs. A 1U chassis requires lowprofile (LP) 1.2-inch DIMMs.
DIMMs must be installed in pairs and in the following order: 1B and
1A, 2B and 2A, 3B and 3A.
Installed DIMMs must be the same speed and must all be registered.
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