3.4 System Test
To execute the System Test, select 1 from the DIAGNOSTIC TEST menu, press
Enter
and
follow the directions displayed on the screen. Move the highlight bar to the subtest you want
to execute and press Enter.
Subtest
01
ROM checksum
The ROM checksum tests the system boards from address
FOOOOh
to FFFFFh
(64KB).
Subtest 02 HIW status
Bit
7
6
5
4
3
2
1
0
3-8
This test reads and displays the hardware status as shown below:
76543210
H/W
status
=
10001000
Bit7
Bit6
CPU
clock
=
20MHz
BitS
Notch
signal
=
2HD
Bit4
FDD
type
=
2MB
Bit3
Bit2
Drive
AlB
=
Ext.
= B
Bit1
External
FDD
OFF
BitO
Internal
FDD
=
2HD
Table 3-2 describes the hardware bit status for each bit tested. Pressing
Enter
returns you to the subtest
menu.
Table
3-2
Hardware
Bit Status
HlWStatU8 1
0
Reserved
--
--
CPU
clock
speed
20 MHz 20 MHz
Media
type
200
2HD
FDDtype
1.6MB
2MB
Reserved
--
--
DriveNB
Ext. = A Ext. = B
External FDD
ON OFF
Internal
FDD
200
2HD
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