IBM SA38-0512-03 manual TheDiagnostics Information For Multiple

a. Verify proper SCSI bus termination.

b. Check SCSI cabling.

c. It is possible that another attached SCSI device is causing the problem.

ŸDisconnect the signal and power cables from any other SCSI devices

attached

to

the

SCSI adapter

that

the CD-ROM drive

is

attached

to.

Ÿ

Try

to boot the standalone diagnostics again.

Ÿ

If

unable to load standalone diagnostics go to step 4.

Ÿ

If

standalone

diagnostics

load,

one

of

the

disconnected

devices

removed

is

causing

the problem. Reconnect the devices one at a time and retry

the

boot

operation

until

the

problem

recurs

and

replace

the

device that

caused

the

problem. (If

the problem appears to be one of the SCSI

devices, be aware it could be either the SCSI device

or

the

SCSI

adapter).

Go

to

"MAP

0410:

Repair Checkout"Diagnosticsin the

Information

for Multiple Bus. Systems

4. It is possible

that

another

installed

adapter is causing the problem.

Ÿ

Remove

all

installed

adapters

except

the

one

the

CD-ROM

drive

is

attached

to

and

the

one

used

for the

console.

Ÿ

Try

to

boot

the

standalone

diagnostics

again.

Ÿ

If

unable

to

load

standalone

diagnostics

go

to

step 5.

ŸIf standalone diagnostics load, re-install adapters (and attached devices as

applicable)

one at a time and retry the boot operation

until

the

problem

recurs. Then replace the adapter or device that caused

the

problem

(system

board can also cause the device or adapter to fail).

Go

to "MAP

0410:

Repair

Checkout" in

theDiagnostics

Information

for

Multiple

Bus.

Systems

5. Either the CD-ROM drive, SCSI adapter,

the graphics

adapter,

or

the

system

board

is

most

likely defective. A tty terminal attached to

the

serial

port

also ca

be used

to

determine if

the graphics

adapters

is

causing

the

problem.

This is

done by removing the graphics adapter, attaching a tty to

the

serial,

and

retrying

standalone diagnostics. If the standalone diagnostics load, the

graphic

adapter

should

be

replaced.

ŸIf the CD-ROM drive is attached to a SCSI adapter card rather than the

integrated SCSI adapter on the system board.

–Replace SCSI adapter.

–Replace riser card.

ŸReplace system board.

Ÿ If	you replaced the indicated FRUs and the	problem	is still not	corrected, or
the	above descriptions did not address your	particular	situation,	go to“MAP
1540:	Minimum Configuration” on page 2-21.

ŸGo to "MAP 0410: Repair Checkout"Diagnosticsin the Information for Multiple Bus Systems.

4-287043 43P Series Service Guide