NIC INTERRUPT TEST FAILED IN 8100!!!!!

Hi, i have just performed a test on my 8100 machine and got an error, thatt is fail in NIC INTERRUPT TEST . I have got a 3Com combo miniPci card, and has no problem with modem. But when i test the Nic card, i got this result..

Mini PCI 3Com NIC - NIC Interrupt Test                     : Fail
  Status: Fail  Status Code: DOS DDG-D MINI3COM 030 026
  Device: Mini_PCI_3Com_NIC  Test: NIC_Interrupt_Test
  Release: 1083 Module(s): Mini3Com
  Msg: Failed Internal loopback Test

I just wondering that this is normal or it is a faulty network card. Could anyone please help me with this??

Thanks.