Конечно... === COM1 SERIAL PORT TEST === Loopback Plug..............................................Present Test

savely_s писал(-а):
Э, пардон, а заглушка-то ставится при тестировании?

Конечно...

=== COM1 SERIAL PORT TEST ===
Loopback Plug..............................................Present
Test data register.........................................Passed
Test interrupt enable....................................Passed
Test interrupt id............................................Passed
Test line control............................................Passed
Test modem control.......................................FAILED ***
[Ext] Expected 10h, received 00h.
Test line status..............................................Passed
Test modem status.......................................FAILED ***
[Ext] Expected F0h, received E0h.
Test different baud rates................................Passed

ЗЫ Заглушку проверял на другой матери, все ОК