Pc-Check® UEFI

Test Result

Memory Inversion Tree Failure Information

Test Group 1002

Device Memory

This is a group that tests physical memory (RAM).

Different testing algorithms are used by which to reveal the faulty behaviour of prone memory modules. Memory testing is a probabilistic process that seeks to discover problems that could lead to data or program corruption in normal operation. The number of possible combinations of data and timing are near infinite, so most test algorithms seek to isolate problems though proven methods and careful design based on the physical characteristics of the manufacturing design - for example physically adjacent bit cells are more likely to show coupling effects.

Note: If testing with a duration, for all tests this should be at least a minute.

Note: In this test group it is possible to combine the duration and coverage parameters. i.e. you can test 50% of memory for 60 minutes.

Note: Identify the failing module by matching the 'handle' value of the device in the system information log with the value given in the test failure code of the result log.

Test Number 405

Test Name Inversion Tree

Set bits to 1 or 0 with increasing frequency such that over time they would form a tree pattern.

Estimated test time Approx 7s per GB"

Parameter 1 Duration

How long to run the test in seconds or specify zero if testing by coverage alone (default).

Parameter 2 Coverage

Percentage of available memory to test. 

Parameter 5 Use bootstrap processor only

Test only with the bootstrap CPU thread.

ERRORCODES & TROUBLESHOOTING

Mismatch of memory value. CODE="0x00/3FF"
TROUBLESHOOTING0: The memory appears to be faulty. Try re-seating or swapping out modules.

Memory allocation failure. CODE="0x01/3FF"
TROUBLESHOOTING1: There was an internal error. The test was inconclusive. Check for BIOS updates.

The application processor timed out. CODE="0x02/3FF"
TROUBLESHOOTING1: There was an internal error. The test was inconclusive. Check for BIOS updates.

Core synchronisation failed. CODE="0x03/3FF"
TROUBLESHOOTING1: There was an internal error. The test was inconclusive. Check for BIOS updates.

Memory marked unusable by BIOS. CODE="0x04/3FF"
TROUBLESHOOTING0: The memory appears to be faulty. Try re-seating or swapping out modules.

1 or more application processors failed to start. CODE="0x05/3FF"
TROUBLESHOOTING1: There was an internal error. The test was inconclusive. Check for BIOS updates.

Unexpected algorithmic failure, parasitic memory corruption? CODE="0x06/3FF"
TROUBLESHOOTING0: The memory appears to be faulty. Try re-seating or swapping out modules.