Loopback diagnostic tests are available for testing the adapter hardware. These tests provide access to the adapter
internal/external diagnostics, where packet information is transmitted across the physical link. For Windows environments, see

Running Diagnostic Tests in Windows

BACS Diagnostic Tests Failures

If any of the following tests fail while running the diagnostic tests from the

Running Diagnostic Tests in Windows

tab in BACS,

this may indicate a hardware issue with the NIC or LOM that is installed in the system.

Control Registers
MII Registers
EEPROM
Internal Memory
On-Chip CPU
Interrupt
Loopback - MAC
Loopback - PHY
Test LED

Below are troubleshooting steps that may help correct the failure.

1. Remove the failing device and reseat it in the slot, ensuring the card is firmly seated in the slot from front to back.
2. Rerun the test.
3. If the card still fails, replace it with a different card of the same model and run the test. If the test passes on the

known good card, contact your hardware vendor for assistance on the failing device.

4. Power down the machine, remove AC power from the machine, and then reboot the system.
5. Remove and re-install the diagnostic software.
6. Contact your hardware vendor.

BACS Network Test Failures