Multi-Tech Systems RAS96 - Manual (Page 79)

C POST Codes
CommPlete Communications Server 71
Code Name Description
F Test DMA Controller 0 BIOS checksum test. Keyboard detect and initialization.
10 Test DMA Controller 1
11 Test DMA Page
Registers Test DMA page registers.
12–13 Reserved
14 Test Timer Counter 2 Test 8254 Timer 0 Counter 2.
15 Test 8259-1 Mask Bits Verify 8259 Channel 1 masked interrupts by alternately
turning the interrupt lines off and on.
16 Test 8259-2 Mask Bits Verify 8259 Channel 2 masked interrupts by alternately
turning the interrupt lines off and on.
17 Test Stuck 8259’s
Interrupt Bits Turn off interrupts, then verify no interrupts mask register is
on.
18 Test 8259 Interrupt
Functionality Force an interrupt and verify that the interrupt occurred.
19 Test Stuck NMI Bits
(Parity/IO Check) Verify NMI can be cleared.
1A Display CPU clock
1B–1E Reserved
1F Set EISA Mode If EISA nonvolatile memory checksum is good, execute
EISA initialization. If not, execute ISA tests and clear EISA
mode flag. Test EISA Configuration Memory Integrity
(checksum and communication interface).
20 Enable Slot 0 Initialize slot 0 on the system board.
21–2F Enable Slots 1-15 Initialize slots 1 through 15 on the system board.
30 Size Base and
Extended Memory Size base memory from 256K to 640K and extended
memory above 1MB.
31 Test Base and Extended
Memory Test base memory from 256K to 640K and extended
memory above 1MB using various patterns. Note: This will
be skipped in EISA mode and can be skipped with the
ESC
key in ISA mode.
32 Test EISA Extended
Memory If EISA Mode flag is set, then test EISA memory found in
slots initialization. Note: This will be skipped in ISA mode
and can be skipped with the
ESC key in EISA mode.
33–3B Reserved
3C Setup Enabled
3D Initialize and Install
Mouse Detect if mouse is present, initialize mouse, install interrupt
vectors.
3E Set Up Cache Controller Initialize cache controller.
3F Reserved
BF Chipset Initialization Program chipset registers with Setup values.
40 Display virus protect disable or enable
41 Initialize Floppy Drive
Controller Initialize floppy disk drive controller and any floppy drives.
42 Initialize Hard Disk and
Controller Initialize hard disk controller and any hard disks.