IBM S84H-4552-00 manual Diagnostics for the SelectaDock Docking System, TheLogo Screen

PC Test Card	LED:	The green LED on the PC test
card lights	when	the PCMCIA test is running. If the LED

does not light, check that the card is installed correctly by

reseating	the card. If it still does not light after reseating,
try using	another	slot for the test. If the LED still does not
light and the test fails, replace the FRU shown in the
diagnostic	error	code.

Errors

during

the

POST:

If the POST detects an

error,

a

three- to

eight-digit error

code

displays.

Memory Errors:

If

the

POST detects

a memory

error

in the first 640 KB

of system

memory,

all

the

first bank

memory

is

deallocated

and

the

test continues

with

the

second

640

KB of memory. If the total amount of

error-free

memory becomes less than 2

MB,

a

2XX

POST

error occurs and the system stops. All

the

remaining

memory

is

used

as

system

memory. When

the

POST

memory test has completed, the usable memory size is compared with the configuration data. If a mismatch is detected, a 2XX error code Escoccurs,and.F1Press

after restart to continue system operation.

Memory sizes, that are deallocated because of the POST

process,		are	kept by the hibernation or suspend functions.
To	test	this	memory, it must	be	reconfigured as part of the
original		memory	size. Configure	by	turning the power off
and	on.

Deallocation support is done only by the POST for memory errors. All irrecoverable memory errors that occur during normal operation cause an interrupt to the operating system.

Diagnostics for the SelectaDock

Docking System

The	SelectaDock Docking System Options Diskette helps
you	troubleshoot the expansion unit, SCSI adapter, and
SCSI	device problems through a series of menus.

Run the diagnostics to verify operation of the SelectaDock Docking System and SCSI devices. Do the following:

1.Power-off the computer on the SelectaDock Docking System and external SCSI devices.

2. Insert the Option Diskette into drive A.

3.Power-on all attached external SCSI devices and the computer on the SelectaDock Docking System.

4. TheLogo Screen appears.

5. After a few secondsMain Menuthe appears.

6.Select a device for testing and go to the respective section.

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