IBM 5000 manual 10/100 Mbps Ethernet Controller Troubleshooting Chart

If the problem still exists, have the system serviced. Check the following:

Ÿ Make sure that the hub is turned on.

Ÿ Check all connections at the Ethernet and the hub.

Ÿ Check the cable. A crossover cable is required unless the hu has anX designation.

Ÿ Use another port on the hub.

Ÿ If the hub does not support auto-negotiation, manually configur the Ethernet controller to match the hub.

Ÿ If you manually configured the duplex mode, make sure that y also manually configure the speed.

Ÿ Run diagnostics for the LEDs.

Troubleshooting

10/100 Mbps Ethernet Controller Troubleshooting Chart

You can use the following troubleshooting chart to find solutions to 10/ Ethernet problems that have definite symptoms.

Controller Problem		Action
The	server	stops running The	PCI BIOS interrupt settings are incorrect.
when	loading	device drivers.	the following:
		Check

ŸDetermine if the interrupt (IRQ) setting assigned to the Ethe controller is also assigned to another device in the Configuration/Setup Utility program.

Although interrupt sharing is allowed for PCI devices, some devices do not function well when they share an interrupt wit dissimilar PCI device. Try changing the IRQ assigned to the

Ethernet controller or the other device. (See “Resolving

Configuration Conflicts” on page 152.)

ŸFor NetWare and IntraNetware, do not use IRQ 14 or 15 for

devices. IRQ 14 is			used	for		IDE	devices (CD-ROM drive). If
IDE CD-ROM in your system				is	disabled,			reserve	IRQ	14 as I
Legacy	in	Plugtheand Play	menu	of		the	Configuration/Setup
Utility	program. (See		“Plug	and		Play” on		page 30.)	IRQ	15
should	be	reserved	for ISA		legacy		devices.

ŸMake sure that you are using the most recent device driver available from the World Wide Web. (See the “Getting Help Information” section Serverof thisLibraryfor World Wide Web addresses.)

ŸRun the network diagnostic program.

If the problem still exists, have the system serviced.

Ethernet Link Status light Check the following: does not light.

The Ethernet Transmit/Receive Activity light does not light.

Note: The Ethernet Transmit/Receive

Activity

LED

illuminates

only

when

data

is

sent

to

or

by

this

Ethernet controller.

Ÿ

Make

sure

that

you

have

loaded

the

network

device

drivers.

Ÿ

The

network

might

be

idle. Try

sending

data

from

this workstati

Ÿ

Run

diagnostics

on

the

LEDs.

Ÿ

The

function

of

this LED can be changed

through

device drive

load parameters. If necessary, remove any LED parameter

settings

when

you

load

the

device drivers.

Data is incorrect or sporadic.	Check the following:
Ÿ Make	sure	that	you	are using Category 5 cabling when operatin
the	server	at	100	Mbps.

ŸMake sure that the cables do not run close to noise-inducing sources like fluorescent lights.

150 Netfinity 5000 Server Hardware Information and Procedures