Due to computer failure, I have upgraded to an Asus P4P800 Mobo with onboard lan. The lan is 3com Gigabyte 940.
After building the computer and installing my existing Mandrake 9.1 hard drive, a most irritating thing has come up.
All Mobo drivers have loaded up and I have no problem with sound, video, etc..
I have resorted to plugging in an old Lan card for which MD has no problem with which is why I am on the web. (Got tired of switching back and forth from Windows UGHH.) This Lan work with Win.

But I am having a devil of a time with the on board Lan. Mandrake will not recognize that it exists. At all.
I have updated my Kernal, updated XFree, and all other updates. I have followed the instructions that came with Asus mobo CD for installing Lan Drivers for Linux to the letter. All I get are errors. Tried running Iscmod to see if anything was out there. Nothing.

It does show up in Harddrake as Ethernet, but it says, unknown.

The drivers won't load, so I can not associate Unknown with it's drivers.
Message running Make Load:
[root@hal 3c2000]# make load
/usr/src/linux/include/linux/version.h:1:28: linux/rhconfig.h: No such file or directory
/usr/src/linux/include/linux/autoconf.h:1:28: linux/rhconfig.h: No such file or directory
insmod 3c2000.o
3c2000.o: unresolved symbol eth_type_trans_R729edb6c
3c2000.o: unresolved symbol proc_net_Ra0b035c6
3c2000.o: unresolved symbol skb_over_panic_R5ced0794
3c2000.o: unresolved symbol mem_map_R37be23b3
3c2000.o: unresolved symbol netif_rx_Rd1546c1c
3c2000.o: unresolved symbol create_proc_entry_Rab06bca9
3c2000.o: unresolved symbol softnet_data_R338e35b2
3c2000.o: unresolved symbol irq_stat_R319087af
3c2000.o: unresolved symbol __kfree_skb_Rc45b82d1
3c2000.o: unresolved symbol remove_proc_entry_R63ad0716
3c2000.o: unresolved symbol alloc_skb_Rdc2b24bd
make: *** [load] Error 1

Does anyone have any ideas?? Tried everything. Would like to put old Lan card back in old computer....
Thanks very much in advance!

I think your P4P uses the same 3Com controller as my A7V600 motherboard. There aren't specific drivers for this controller - rather, you have to use Syskonnect's Yukon/Marvell driver module. This driver recognizes the 3Com controller from the version 2.4.22 kernel and up. In any case, I'm assuming Mandrake has automatically compiled all drivers as modules for you. So all you should have to do is this as root (from console):
modprobe sk98lin
And then eth0 (or eth1 if the other card comes first) should be available. If sk98lin isn't available, you'll have to get the source for your kernel, and compile the module for the Marvell/Yukon chipset. There are plenty of good FAQs and HOWTOs for this, sorry don't have a link handy