IBM xSeries 380, Hardware Maintenance Manual

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Hardware Maintenance Manual: xSeries 380
PCI system test
The PCI System Test makes sure that the PCI bus and all PCI devices in the computer
are working properly. The PCI Bus Test includes:
• PCI Bus Scan
• PCI Device Access Test
• PCI Configuration Verification Test
• PCI Bus Stress Test
PCI Bus Scan: This test scans for all PCI devices in the computer.
PCI Device Access Test: This test accesses all PCI devices in the computer by vendor
ID and class code.
PCI Configuration Verification Test: This test verifies the transactions across the PCI
bus by reading the 256 byte PCI Configuration Space associated with each detected
PCI device.
PCI Bus Stress Test: This test generates a heavy load of transactions over the PCI bus
by transferring large volumes of data from system memory to a PCI device (the PCI
VGA controller).
Multiprocessor test
Select this test when running AMIDiag in a computer that has more than one CPU.
This test performs a variety of diagnostics on both CPUs. To perform this test, select
Multiprocessor Test from the System menu and press <Enter>. Follow the directions
on the screen. The multiprocessor test includes:
• CPU-Processor Test
• FPU-Processor Test
• Memory Consistency Test
• I/O Access Test
SMIBIOS test
The SMBIOS (System Management BIOS) test makes sure that the DMI information in
your computer is stored in the proper manner and is essentially correct. The SMBIOS
file stores system configuration information, and specification information about your
computer and all peripheral devices attached to your computer.
System error codes
For system error codes, see “System error codes” on page 230.
Memory diagnostics
All memory tests write to all areas of installed DRAM system memory up to 64 GB.
The memory tests determine the size of system memory. The memory diagnostics are
shown below: