3Com NIC Diagnostics Program B-9
7 Click Start in the Self-Test area.
The following tests run in sequence:
■Register Access
■EEPROM
■FIFO
■Ethernet Core Loopback
■Encoder/Decoder Loopback
■Interrupt
You can click Stop to stop the tests. Otherwise, the tests
run continuously to completion.
Click the Help button to display help for this screen. Click
the question mark (?) at the top of the screen, drag it to a
test, and click. The pop-up box displays information about
the selected test and what to do if the test fails.
Running the Echo Test
The echo test tests the 3C905B-TX adapter’s ability to
transmit and receive data while on the network.
You need two PCs with 3Com adapters or IBM 10/100
Fast EtherLink XL Adapters by 3Com installed to run an
echo test: one PC to send data and one PC to receive data.
CAUTION: Running the echo test while connected to an
active network can cause intermittent failures. To avoid
this, connect to an inactive network on which only the PC
being tested is operating.
To run the echo test, follow these steps:
1 Make sure that the 3C905B-TX adapter is installed in
the sending PC and connected to the network
(Chapter 2) and that the network driver is installed
(Chapter 3).
2 Install a 3C905B-TX adapter in another PC (the echo
server), connect it to the network, and install the
network driver.
The echo server PC is the responding PC.