Hardware options installation 28 
• 
All DIMMs installed must be the same speed (DDR2 PC4200). 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 2A  Slot 3B  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 
 
 
Installing DIMMs 
1.  Power down the server ("Powering down the server" on page 15). 
2.  Remove the server from the rack ("Removing the server from the rack" on page 16). 
3.  Remove the access panel ("Removing the access panel" on page 17). 
4.  Open the DIMM slot latches. 
5.  Install the DIMM. 
 
6.  Install the access panel ("Installing the access panel" on page 17). 
7.  Install the server into the rack ("Installing the server into the rack" on page 25). 
 
Hard drive options 
The server provides non-hot plug capability through an embedded SATA controller. To obtain SAS or 
SATA hot-plug capability, install an optional controller.