HP dl385 Manual De Usuario

 

Hardware options installation 43 

Advanced ECC memory 

This server uses Advanced ECC for memory protection. 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. 

 

DIMM installation guidelines 

Observe the following guidelines when installing additional memory: 

•

 

Always install memory in pairs of two identical DIMMs. 

•

 

Install only ECC PC2-5300 Registered DDR2 SDRAM DIMMs that meet the following specifications: 

o 

Supply voltage: 1.8 V 

o 

Bus width: 72 bits 

•

 

Install DIMMs with the same speed. 

•

 

Install memory in pairs (banks) beginning with banks farthest away from each populated processor 
(banks A and C). 

•

 

Observe the following special conditions when installing memory with a second processor: 

o 

Processor 2 can be installed without memory. 

o 

Any memory installed into banks for processor 2 can be used only if processor 2 is installed. 

  

 

CAUTION:

  Always wear an antistatic wrist strap when working inside the server. 

  

 

DIMM population order 

 

Configuration Bank 

A 

1A and 2A 

Bank B 
3B and 4B 

Bank C 
5C and 6C 

Bank D 
7D and 8D 

Single processor 

1st 

2nd 

— 

— 

Dual processor 

1st 

3rd 

2nd 

4th 

 

 

Installing DIMMs 

1. 

Power down the server (on page 

2. 

Extend the server from the rack (on page 

3. 

Remove the access panel (on page 

). 

4. 

Remove the air baffle (on page 

5. 

Open the DIMM slot latches.