ProLiant DL320 Generation 3 Server User Guide

38 HP ProLiant DL320 Generation 3 Server User Guide
DIMM installation guidelines
Observe the following guidelines when installing additional memory:
• DIMMs installed in the server must be Unbuffered DDR DRAM, 2.5 V, 64
bits wide, and ECC.
• All DIMMs installed must be the same speed (DDR PC3200). 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 asymmetric mode: DIMMs installed in both banks, but of unequal
capacities per bank.
• 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 — 3 GB Dual-bank asymmetric
1 GB 1 GB 1 GB 1 GB 4 GB Dual-bank interleaved
Installing DIMMs
1. Access the internal server components ("Preparation procedures" on page
20
).