HP DL585 ProLiant DL585 Generation 2 Server User Guide - Page 40

Memory options, Advanced ECC memory, Installing DIMMs

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15. Close the processor memory module cover. 16. Install the fans. 17. Install the processor memory module into the server. 18. Power up the server (on page 27). Memory options The server contains 32 DIMM slots. You can expand server memory by installing supported PC2-5300 667-MHz Registered DDR2 DIMMs. The maximum supported memory for this server is 128 GB using 32 4-GB DIMMs. Advanced ECC memory Advanced ECC memory is the default memory protection mode for this server. In Advanced ECC, the server is protected against correctable memory errors. The server provides notification if the level of correctable errors exceeds a pre-defined threshold rate. The server does not fail because of correctable memory errors. Advanced ECC provides additional protection over Standard ECC because it is possible to correct certain memory errors that would otherwise be uncorrectable and result in a server failure. Whereas standard ECC can correct single-bit memory errors, Advanced ECC can correct single-bit memory errors and multi-bit memory errors if all failed bits are on the same DRAM device on the DIMM. Installing DIMMs To operate the server, at least one pair of DIMMs must be installed in slots 1A and 2A ("DIMM slot identification" on page 9). To add memory to the server, observe the following DIMM installation guidelines: • DIMMs must be installed in pairs. • DIMM installed on the same memory bank must have the same part number. • DIMMs installed in different banks can be of different sizes. Hardware options installation 40

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Hardware options installation 40
15.
Close the processor memory module cover.
16.
Install the fans.
17.
Install the processor memory module into the server.
18.
Power up the server (on page
27
).
Memory options
The server contains 32 DIMM slots. You can expand server memory by installing supported PC2-5300
667-MHz Registered DDR2 DIMMs. The maximum supported memory for this server is 128 GB using 32
4-GB DIMMs.
Advanced ECC memory
Advanced ECC memory is the default memory protection mode for this server. In Advanced ECC, the
server is protected against correctable memory errors. The server provides notification if the level of
correctable errors exceeds a pre-defined threshold rate. The server does not fail because of correctable
memory errors. Advanced ECC provides additional protection over Standard ECC because it is possible
to correct certain memory errors that would otherwise be uncorrectable and result in a server failure.
Whereas standard ECC can correct single-bit memory errors, Advanced ECC can correct single-bit
memory errors and multi-bit memory errors if all failed bits are on the same DRAM device on the DIMM.
Installing DIMMs
To operate the server, at least one pair of DIMMs must be installed in slots 1A and 2A ("
DIMM slot
identification
" on page
9
).
To add memory to the server, observe the following DIMM installation guidelines:
•
DIMMs must be installed in pairs.
•
DIMM installed on the same memory bank must have the same part number.
•
DIMMs installed in different banks can be of different sizes.