
Table 
| Message | Causes | Corrective Actions | 
| 
 | 
 | 
 | 
| Error: Incorrect memory | Mismatched or unmatched DIMMs | Ensure that all pairs of memory modules | 
| configuration. DIMMs must | installed; faulty or improperly seated | are of the same type and size and that | 
| be installed in pairs of | memory module(s). | they are properly installed. See "System | 
| matched memory size, | 
 | Memory" on page 89. If the problem | 
| speed, and technology. | 
 | persists, see "Troubleshooting System | 
| 
 | 
 | Memory" on page 120. | 
Error: Memory failure detected. Memory size reduced. Replace the faulty DIMM as soon as possible.
| Faulty or improperly seated memory | See "Troubleshooting System Memory" | 
| module(s). | on page 120. | 
| !!*** Error: Remote Access | Remote Access Controller | 
| Controller initialization | initialization failure | 
| failure*** RAC virtual USB | 
 | 
| devices may not be | 
 | 
| available... | 
 | 
Ensure that the Remote Access Controller is properly installed. See "Installing a RAC Card" on page 80.
FBD training error: The following branch has been disabled: Branch x
The specified branch (channel pair) contains DIMMs that are incompatible with each other.
Ensure that only 
| Gate A20 failure | Faulty keyboard controller; faulty | See "Getting Help" on page 147. | 
| 
 | system board. | 
 | 
| General failure | The operating system is unable to | 
| 
 | carry out the command. | 
This message is usually followed by specific information. Note the information, and take the appropriate action to resolve the problem.
| Invalid NVRAM | System detected and corrected a | No action is required. | 
| configuration, Resource | resource conflict. | 
 | 
| 
 | 
 | 
 | 
| 
 | 
 | 
 | 
| Keyboard Controller | Faulty keyboard controller; faulty | See "Getting Help" on page 147. | 
| failure | system board | 
 | 
| 
 | 
 | 
 | 
| Manufacturing mode | System is in manufacturing mode. | Reboot to take the system out of | 
| detected | 
 | manufacturing mode. | 
| 
 | 
 | 
 | 
| MEMBIST failure - The | Faulty memory module(s). | See "Troubleshooting System Memory" | 
| following DIMM/rank has | 
 | on page 120. | 
| been disabled by BIOS: | 
 | 
 | 
| DIMM x Rank y | 
 | 
 | 
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