Acer AT350 F2 Acer AT350 F2 Server Service Guide - Page 67

53 Upgrading the system memory System memory interface The server has a total of twenty four DIMM slots. Each CPU controls four channels and each channel has three slots. The DIMM slots support DDR3-1333 registered/unbuffered ECC memory modules. For single rank and dual rank RDIMM, a maximum of three DIMMs per channel or a total of 24 DIMMs can be supported. For UDIMM and quad rank RDIMM, only a maximum of two DIMMs per channel can be supported. Independent mode • For all memory modes, slot 1 in each channel should be populated first and then slot 2. If slot 1 is empty, then slots 2 and 3 cannot be used. • For a single-processor server configuration, install the processor in CPU1 socket and the memory modules in slots P1DIMM A1 to P1DIMM D3. • If there is a processor installed in CPU2 socket, the system will enable the slots P2DIMM E1 to P2DIMM H3.