HP ProLiant DL320s Server - Manual (Page 31)

Hardware options installation 31
Installing DIMMs
Observe the following guidelines when installing additional memory:
• DIMMs installed in the server must be unbuffered DDR2 SDRAM, 2.5 V, 64 bits wide, and ECC.
• All DIMMs installed must be the same speed (DDR2 PC5300). Do not install DIMMs supporting
different speeds.
• If only a single DIMM is installed, HP recommends installing it in slot 1A.
BIOS detects the DIMM population and sets the system as follows:
• Single-bank mode: DIMMs installed in one bank only.
• Dual-bank interleaved mode: DIMMs installed in both banks with equal bank capacities.
The following table lists some, but not all, possible configurations. For best performance, HP recommends
dual-bank interleaved mode configurations.
Slot 1A Slot 2B Slot 3A Slot 4B Total memory Mode
512 MB — — — 512 MB Single-bank
512 MB — 512 MB — 1 GB Dual-bank interleaved
1 GB — — — 1 GB Single-bank
1 GB — 1 GB — 2 GB Dual-bank interleaved
1 GB 1 GB 1 GB 1 GB 4 GB Dual-bank interleaved
To install DIMMs:
1. Power down the server (on page 26 ).
2. Remove the access panel (" Removing and replacing the access panel " on page 26 ).
3. Remove the upper tray (" Removing the upper tray " on page 27 ).
4. Open the DIMM slot latches.
5. Install the DIMM.
6. Replace the upper tray (" Removing the upper tray " on page 27 ).
7. Replace the access panel (" Removing and replacing the access panel " on page 26 ).