HP (Hewlett-Packard) LH 6000 User Manual
Chapter 4
Diagnostics
47
Test
Description
Cache Memory Test
Tests the processor's on-chip (internal) cache RAM. Test failure causes an error
message to be displayed and the boot process to abort.
message to be displayed and the boot process to abort.
Keyboard/Mouse
Controller Test
Controller Test
Checks for proper operation of the Keyboard/Mouse Controller. Test failure
causes an error code to be displayed.
causes an error code to be displayed.
Timer 0/Timer 2 Test
Tests Timer 0 and Timer 2. Test failure causes an error code to be displayed.
DMA Sub-system Test
Checks the DMA controller registers. Test failure causes an error code to be
displayed.
displayed.
Interrupt Controller
Test
Test
Tests the interrupt masks, the master controller interrupt path (by forcing an
IRQ0), and the industry-standard slave controller (by forcing an IRQ8). Test failure
at any point causes an error code to be displayed.
IRQ0), and the industry-standard slave controller (by forcing an IRQ8). Test failure
at any point causes an error code to be displayed.
RAM Address Line
Independence Test
Independence Test
Verifies the address independence of real-mode RAM (that address lines are not
stuck together). Test failure causes an error code to be displayed.
stuck together). Test failure causes an error code to be displayed.
Real-Mode Memory
Test (First 640 K)
Test (First 640 K)
Read/write test on system real-mode RAM. The test checks each block of system
RAM to determine how much is present and displays the current base value upon
successful completion of the test. Test failure of a 64 K block of memory causes
an error code to be displayed and the remainder of the memory test to be
skipped.
RAM to determine how much is present and displays the current base value upon
successful completion of the test. Test failure of a 64 K block of memory causes
an error code to be displayed and the remainder of the memory test to be
skipped.
Shadow RAM Test
Tests Shadow RAM in 64-Kbyte segments, except for the segments beginning at
A000h, B000h, and F000h. If they are not being used, segments C000h, D000h,
and E000h are tested. Test failure causes an error code to be displayed.
A000h, B000h, and F000h. If they are not being used, segments C000h, D000h,
and E000h are tested. Test failure causes an error code to be displayed.
Real-Time Clock Test
Checks the real-time clock registers and performs a test that ensures the clock is
running. Test failure causes an error code to be displayed.
running. Test failure causes an error code to be displayed.
Keyboard Test
Invokes built-in keyboard self-test of keyboard's microprocessor and tests for
stuck keyboard keys. Test failure causes an error code to be displayed.
stuck keyboard keys. Test failure causes an error code to be displayed.
Mouse Test
Invokes built-in mouse self-test of mouse's microprocessor and tests for stuck
mouse buttons. Test failure causes an error code to be displayed.
mouse buttons. Test failure causes an error code to be displayed.
Flexible Disk
Controller Subsystem
Test
Controller Subsystem
Test
Tests for proper operation of the flexible disk controller. Test aborts after the first
error is found and will not test any further. Test failure causes an error code to be
displayed.
error is found and will not test any further. Test failure causes an error code to be
displayed.
Internal Numeric
Coprocessor Test
Coprocessor Test
Checks for proper operation of the numeric coprocessor part of the processor.
Test failure causes an error message to be displayed and the boot process to
abort.
Test failure causes an error message to be displayed and the boot process to
abort.
Serial Port Test
Tests the embedded serial port registers. Test failure causes an error code to be
displayed.
displayed.
Parallel Port Test
Tests the one embedded parallel port, if it is enabled. Test failure causes an error
code and an error message to be displayed.
code and an error message to be displayed.
Hard Disk Subsystem
Test
Test
Tests for proper operation of the hard disk controller and performs a read-verify of
a sector on the disk. Test aborts after the first error is found and will not test any
further. Test failure causes an error code to be displayed.
a sector on the disk. Test aborts after the first error is found and will not test any
further. Test failure causes an error code to be displayed.
System Configuration
Tests
Tests
Checks for configuration errors and checksums accessory ROMs. Test failure
causes an error code to be displayed.
causes an error code to be displayed.
Beep Codes
If the POST routines cannot display messages when an error occurs before the video display is initialized,
the server emits a series of beeps. This means that if on boot you get a blank screen, but hear beeps, you
should refer to the table below to interpret the beeps.
the server emits a series of beeps. This means that if on boot you get a blank screen, but hear beeps, you
should refer to the table below to interpret the beeps.