Network Connection Problems - IBM 7870B4U Service Manual

Problem determination and service guide

Table of Contents

1) USB cable (if applicable)

2) Media tray cable (if applicable)

3) Media tray

d. Continue with "Media tray problems" on page 228.

4. For problems that affect only the diskette drive, make sure that:

a. The diskette is inserted correctly in the drive.

b. The diskette is good and not damaged; the drive LED flashes once per

second when the diskette is inserted. (Try another diskette if you have one.)

c. The diskette contains the necessary files to start the blade server.

d. The software program is working correctly.

e. The distance between monitors and diskette drives is at least 76 mm (3 in.).

5. For problems that affect only the CD or DVD drive, make sure that:

a. The CD or DVD is inserted correctly in the drive. If necessary, insert the

end of a straightened paper clip into the manual tray-release opening to

eject the CD or DVD. The drive LED light flashes once per second when the

CD or DVD is inserted.

b. The CD or DVD is clean and not damaged. (Try another CD or DVD if you

have one.)

c. The software program is working properly.

6. For problems that affect one or more of the removable media drives:

a. Reseat the following components:

1) Removable-media drive cable (if applicable)

2) Removable-media drive

3) Media tray cable (if applicable)

4) Media tray

b. Replace the following components one at a time, in the order shown,

restarting the blade server each time:

1) Removable-media drive cable (if applicable)

2) Media tray cable (if applicable)

3) Removable-media drive

4) Media tray

7. Check for correct Advanced-Management-Module operation (see the

documentation for your BladeCenter unit).

Note: Some BladeCenter unit types have several management-module

components that might have to be tested or replaced (see the Installation Guide

for your Advanced Management Module for more information).

8. Replace the Advanced Management Module (see the documentation for your

BladeCenter unit).

If these steps do not solve the problem, it is likely a problem with the blade server.

See "Removable-media drive problems" on page 179 or "Universal Serial Bus

(USB) port problems" on page 182.