HP Vectra XU5 Reference Manual page 69

8042 Self-Test
Timer 0/Timer 2 Test
DMA Subsystem Test
Interrupt ControllerTest
Real-Time Clock Test
Memory Tests
RAM Address
LineIndependence Test
Size Extended Memory
Real-Mode Memory
Test(First 640 KB)
Shadow RAM Test
Protected Mode RAMTest
(Extended RAM)
Keyboard/Mouse Tests
Keyboard Test
Mouse Test
Flexible Disk Drive A Tests
Flexible Disk
ControllerSubsystem Test
Coprocessor Tests
Internal
NumericCoprocessor Test
Vectra XU Technical Reference
Downloads the 8042 and invokes the 8042 internal self-
test.A failure causes an error code to display.
Tests Timer 0 and Timer 2.Test failure causes an error
code to display.
Checks the DMA controller registers. Test failure causes
an error code to display.
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 causes an error
code to display.
Checks the real-time clock registers and performs a test
that ensures the clock is running.Test failure causes an
error code to display.
Verifies the address independence of real-mode RAM (no
address lines stuck together). Test failure causes an error
code to display.
Sizes and clears the protected mode (extended) memory
and writes the value into CMOS bytes 30h and 31h.If the
system fails to switch to protected mode an error code is
displayed.
Read/write test on real-mode RAM. (This test is !!not!!
done during a reset using [
checks each block of system RAM to determine how much
is present. Test failure of a 64 KB block of memory causes
an error code to display, and the test is aborted.
Tests shadow RAM in 64 KB segments (except for
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
display.
Tests protected RAM in 64 KB segments (above 1 MB).
(This test is not done during a reset using [
[ ].) Test failure causes an error code to display.
DEL
Invokes a built-in keyboard self-test of the keyboard's
microprocessor and tests for the presence of a keyboard
and for stuck keyboard keys.Test failure causes an error
code to display.
If a mouse is present, invokes a built-in mouse self-test of
the mouse's microprocessor and for stuck mouse buttons.
Test failure causes an error code to display.
Tests for proper operation of the flexible disk controller.
Test failure causes an error code to display.
Checks for proper operation of the numeric coprocessor
part of the processor.Test failure causes an error code to
display.
Power-On Self Tests
]+[ ]+[ ].)The test
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