Dell Dimension XPS 50 Reference Manual page 138

B-4 Dell Dimension XPS Txxx and Txxxr Systems Reference and Troubleshooting Guide
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BIOS Version Displays the version of the BIOS being used.
Processor Type Displays the type of microprocessor installed.
Processor Speed Displays the internal speed of the microprocessor.
Processor Serial Displays the serial number of the microprocessor when set
Number to Enabled. Disabled (default) turns off this feature.
Cache RAM Indicates the amount of L2 cache memory installed.
Service Tag Displays the system's service tag.
System Memory Displays the amount of system memory installed, ranging
from 64 to 768 MB, in the three DIMM sockets on the
system board.
Memory Bank n Displays the size and type of memory in the DIMM sockets.
ECC Configuration Appears on the screen only if the system detects an all-ECC
memory configuration. Leave this option set to ECC (default)
for optimum performance. To disable ECC, select Non-ECC.
NOTE: The Glossary in the system Help defines abbreviations and acronyms.