The specification may not reflect that, but if the e100 driver works then you have an e100 chipset and not a gigabit one. The chipsets are different enough that there's no chance of the wrong driver working.
-- e100 driver used instead of e1000 https://launchpad.net/bugs/67804 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
