My previous PC had a    built-in Ethernet port that Windows98 identified as 
"3Com 3C920 Integrated Fast Ethernet Controller (3C905C-TX 
Compatible)".  My current PC has a built-in Ethernet port that WindowsME 
identifies as "3Com 3C920 Integrated Fast Ethernet Controller (3C905C-TX 
Compatible)".

With the old PC (a Dell XPS T600) I could run NetBSD 1.5 and get the 
network card to function.  With the new PC (a Dell Dimension 8100) the 
networking is hit or miss.  Sometimes it works, sometimes it doesn't.

Two snippets from dmesg when the card wasn't working are:

ex0 at pci2 dev 12 function 0: 3Com 3c905C-TX 10/100 Ethernet with mngmt 
(rev. 0x78)
ex0: interrupting at irq 3
ex0: MAC address bd:bd:00:00:bd:bd

ex0 at pci2 dev 12 function 0: 3Com 3c905C-TX 10/100 Ethernet with mngmt 
(rev. 0x78)
ex0: interrupting at irq 3
ex0: MAC address bd:bd:bd:bd:bd:bd

When the card does work, the exphy0 device is also found and the MAC 
address is something more realistic, I think.  Since it was working I 
didn't save the dmesg output.

Other interesting things about this PC that may be relevant are:
NetBSD 1.5 (JAGUAR) #7: Fri Mar  9 20:06:14 EST 2001
     root@pc-grunza-p:/usr/src/sys/arch/i386/compile/JAGUAR
cpu0: Intel Pentium Pro, II or III (686-class)
total memory = 1023 MB
avail memory = 945 MB
using 11424 buffers containing 52484 KB of memory
BIOS32 rev. 0 found at 0xffe90
mainbus0 (root)
pci0 at mainbus0 bus 0: configuration mode 1
pci0: i/o space, memory space enabled
pchb0 at pci0 dev 0 function 0
pchb0: Intel product 0x2530 (rev. 0x02)
ppb0 at pci0 dev 1 function 0: Intel product 0x2532 (rev. 0x02)
pci1 at ppb0 bus 1
pci1: i/o space, memory space enabled
vga0 at pci1 dev 0 function 0: ATI Technologies product 0x5144 (rev. 
0x00)      // AGP video card
wsdisplay0 at vga0: console (80x25, vt100 emulation)
ppb1 at pci0 dev 30 function 0: Intel 82801BA Hub-to-PCI Bridge (rev. 0x02)
pci2 at ppb1 bus 2
pci2: i/o space, memory space enabled
S3 Savage4 (VGA display, revision 0x02) at pci2 dev 8 function 0 not 
configured // PCI video card






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"Luke, you're going to find that many | Steven Grunza
of the truths we cling to depend      | voice:  (856) 787 - 2759
greatly on our own point of view."    | fax:    (856) 866 - 2033
  - Obi Wan Kenobi, Return of the Jedi | e-mail: steven_grunza@ieee.org
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