Dell Broadcom NetXtreme Family of Adapters User Manual page 83

Diagnostics.
3. From the Select a test to run list, select Diagnostic Tests. If the Diagnostic Tests option is not available, then from the Context View tab on
the right side of the window, select Diagnostics and then select Diagnostic Tests.
4. Select the diagnostic tests you want to run. Click Select All to select all tests or Clear All to clear all test selections.
5. Select Run Continuously.
6. Click Run.
7. In the error message window that warns of the network connection being temporarily interrupted, click Yes. The diagnostic tests will run
continuously, and the Status field for each test displays the accumulated total of passes and failures.
8. To stop the continuous testing, click Abort.
Control Registers
This test verifies the read and write capabilities of the network adapter registers by writing various values to the registers and verifying the results. The
adapter driver uses these registers to perform network functions such as sending and receiving information. A test failure indicates that the adapter may
not be working properly.
MII Registers
This test verifies the read and write capabilities of the registers of the physical layer (PHY). The physical layer is used to control the electrical signals on the
wire and to configure network speeds such as 1000 Mbit/s.
EEPROM
This test verifies the content of the electrically erasable programmable read-only memory (EEPROM) by reading a portion of the EEPROM and computing
the checksum. The test fails if the computed checksum is different from the checksum stored in the EEPROM. An EEPROM image upgrade does not require
a code change for this test.
Internal Memory
This test verifies that the internal memory of the adapter is functioning properly. The test writes patterned values to the memory and reads back the
results. The test fails if an erroneous value is read back. The adapter cannot function if its internal memory is not functioning properly.
On-Chip CPU
This test verifies the operation of the internal CPUs in the adapter.