Ram test group – Dell OptiPlex GX1 User Manual
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Dell Diagnostics: Dell OptiPlex GX1 Small-Form-Factor System User's Guide
file:///C|/infodev/2013/eDoc/OpGX1/UG/diag.htm[2/21/2013 11:47:14 AM]
Eject Removable Media
Display Information
types of SCSI devices installed and the
resources allocated to them.
Registers Test
Internal Loopback Test
External Loopback Test
Shared RAM Test
Display Information
Tests the read and write access
capability to the NIC registers. Also
tests the ability of the NIC to transmit
and receive data.
Tests the operation of the audio chip
set.
FM Sound Playback Test
Analog Sound Playback Test
Record and Playback Test
Tests the record and playback ability
of the internal microphone and
speakers.
Tests the state of various system
devices, such as the temperature of the
processor. Also displays system
management information for various
system devices.
RAM Test Group
The RAM Test Group subtests check all the directly addressable RAM.
The RAM Test Group program has parameters for the subtests that you can set: Test Limits and Options.
Three subtests are available for RAM: the Quick Memory Test, the Comprehensive Memory Test, and the
Secondary Cache Memory Test. The Quick Memory Test performs an address check to determine
whether the computer is properly setting and clearing individual bits in RAM and whether the RAM read and
write operations are affecting more than one memory address location at one time. This subtest checks all
available RAM. The Comprehensive Memory Test also performs an address check, as well as the
following:
Data pattern checks, to look for RAM bits that are stuck high or low, short-circuited data lines, and
some data pattern problems that are internal to the memory chips
A parity check that verifies the ability of the memory subsystem to detect errors
A refresh check, to verify that the dynamic RAM (DRAM) is being recharged properly
The Secondary Cache Memory Test confirms the functionality of the computer’s cache controller chip and
the cache memory.