Apple Xserve - Apple Xserve Diagnostics (Version 3X103) - Manual (Page 32)

32 Appendix AXD Tools Test Reference
AXD EFI Tools Tests
These tests are available if your Xserve is running AXD EFI tools.
Startup Tests
These tests are automatically run when you start up AXD EFI tools.
SMBIOS tests check to see if bad memory was detected and mapped out at Xserve
startup. When the Xserve tests memory at start up, it automatically maps out bad
memory. Mac OS X doesn’t see this mapped out memory, so the non-SMBIOS memory
tests don’t test it. The SMBIOS test reports these mapped out DIMMS.
When an ECC error occurs, memory catches the problem and and fixes it. When you run
other memory tests, the tests don’t realize an error has occurred. The ECC tests detect
these memory fixes and report them.
Boot ROM Tests
Ethernet Controller Tests
USB port % %
Video controller % % AXD Mac OS X tools have more tests
than AXD EFI tools.
Component tested
Available in AXD
EFI tools Available in AXD
Mac OS X tools
Notes
Test Estimated completion time Description
SMBIOS Self-Test 1 second Checks the SMBIOS tables for 32-bit
errors (type 18) and 64-bit errors (type
33). Also verifies that the mapped-in
DIMM size is appropriate for the slot
it’s inserted into. If there’s a size
mismatch, an error occurs.
ECC Error Count 1 second Reports the number of ECC errors, and
then resets the count
Test Estimated completion time Description
Boot ROM Checksum 1 second Verifies the Boot ROM checksum
Boot ROM FW GUID MAC
Addr Checksum 1 second Verifies the Boot ROM FireWire GUID
MAC address checksum
Test Estimated completion time Description
MAC Address Verification 1 second Verifies MAC address isn’t all FFs or
00s
PCI-E 4 LinkWidth Verification 1 second Verifies PCI link width is 4