HP ProLiant ML330 G6 ユーザーズマニュアル

ページ / 129
 
Hardware options installation 42 
26. 
Power up the server (on page 
 
Memory options 
  
 
IMPORTANT:
  This server does not support mixing RDIMMs and UDIMMs. Attempting to mix 
these two types causes the server to halt during BIOS initialization. 
  
The memory subsystem in this server can support RDIMMs or UDIMMs. Both types are referred to as 
DIMMs when the information applies to both types. When specified as RDIMM or UDIMM, the 
information applies to that type only. All memory installed in the server must be the same type. 
The server supports the following DIMM speeds: 
 
Single- and dual-rank PC3-10600 (DDR-1333) DIMMs operating at 1333 and 1066 MHz 
 
Quad-rank PC3-8500 (DDR-1067) DIMMs operating at 1066 MHz 
Depending on the processor model, the number of DIMMs installed, and whether UDIMMs or RDIMMs 
are installed, the memory clock speed may be reduced to 1066 or 800 MHz. For more information on 
the effect of DIMM slot population, see "General DIMM slot population guidelines (on page 
 
Memory subsystem architecture 
The memory subsystem in this server is divided into channels. Each processor supports three channels, 
and each channel supports three DIMM slots, as shown in the following table. 
 
Channel 
Slot  
Slot number 
1 G 



2 H 



3 I 



 
This multi-channel architecture provides enhanced performance in Advanced ECC mode. This architecture 
also enables the Mirrored Memory and Lockstep memory modes. This server supports both Registered 
PC3 DIMMSs (RDIMMs) and Unbuffered DIMMs (UDIMMs). 
DIMM slots in this server are identified by number and by letter. Letters identify the slots to populate for 
specific AMP modes. Slot numbers are reported by ROM messages during boot and for error reporting. 
 
Single-, dual-, and quad-rank DIMMs 
To understand and configure memory protection modes properly, an understanding of single-, dual-, and 
quad-rank DIMMs is helpful. Some DIMM configuration requirements are based on these classifications.  
A single-rank DIMM has one set of memory chips that is accessed while writing to or reading from the 
memory. A dual-rank DIMM is similar to having two single-rank DIMMs on the same module, with only