42 About Your System
ROM bad checksum 
= 
address
Expansion card improperly 
installed or faulty.
Reseat the expansion card(s). 
Ensure that all appropriate 
cables are securely connected 
to the expansion card(s). If 
the problem persists, see 
"Troubleshooting Expansion 
Cards" on page 158.
Sector not found
Seek error
Seek operation 
failed
Faulty hard drive, USB 
device, or. USB medium.
See "Troubleshooting a USB 
Device" on page 143 or 
"Troubleshooting a Hard 
Drive" on page 155 for the 
appropriate drive(s) installed 
in your system.
Shutdown failure Shutdown test failure. See "Troubleshooting System 
Memory" on page 150.
The amount of 
system memory has 
changed
Memory has been added or 
removed or a memory 
module may be faulty.
If memory has been added or 
removed, this message is 
informative and can be 
ignored. If memory has not 
been added or removed, 
check the SEL to determine 
if single-bit or multi-bit 
errors were detected and 
replace the faulty memory 
module. See 
"Troubleshooting System 
Memory" on page 150. 
This system 
supports only 
Opteron(TM) 2000 
series 
processors.
Microprocessor(s) is not 
supported by the system.
Install a supported 
microprocessor or 
microprocessor combination. 
See "Installing a Processor" 
on page 123.
Time-of-day 
clock stopped
Faulty battery or faulty chip. See "Troubleshooting the 
System Battery" on page 147.
Table 1-7. System Messages (continued)
Message Causes Corrective Actions