I have 4 dm9601 that all lack eprom in the pcb ad hence all have the same mac address.
I'm planning on attempting to solder a 93c46 (recovered from a 3com pci ethernet card) in the empty solder pads on the pcb and see what heppens ... just would like to at least have some sensible data in the eprom before doing that as I suspect that the 3com will probabbly have different register layout.

CAn anyone post here the output of
where x is correct for wherever the dm9601 is on your system

If you have windows you can use pg9601.exe to dump the eprom into dump.dat
and then just post here the contents from a hex editor or even a link to where you put it.

Proms are usually options. They have nothing to do with mac addresses for common cards as far as I know. The cards ought to have mac on a label attached.

If you want to enable pxe or gpxe/ipxe might look at http://rom-o-matic.net/

Might email OEM for that data too.

Intresting opininon ... but on all the ethernet cards on which I can dump the eeprom I've found the mac address amongst the dumped data.
Also the dm9601 datasheet also states that the first 6 bytes in the eeprom are indeed the mac address (look in the EEPROM Format table page 24):

Regardless of whether the mac is in there or not I'd still like to have a valid eeprom dump from any of these cards:
(0x07aa, 0x9601), /* Corega FEther USB-TXC */
(0x0a46, 0x9601), /* Davicom USB-100 */
(0x0a46, 0x6688), /* ZT6688 USB NIC */
(0x0a46, 0x0268), /* ShanTou ST268 USB NIC */
(0x0a46, 0x8515), /* ADMtek ADM8515 USB NIC */
(0x0a47, 0x9601), /* Hirose USB-100 */
(0x0fe6, 0x8101), /* DM9601 USB to Fast Ethernet Adapter */
(0x0fe6, 0x9700), /* DM9601 USB to Fast Ethernet Adapter */
(0x0a46, 0x9000), /* DM9000E */

What are you trying to do with this? The option proms are not a standard thing. They are used by larger organizations for special needs. Go and make yourself an option rom at rom-o-matic which is the same as etherboot now. They were two different projects. Here are some tips http://www.tldp.org/HOWTO/Network-boot-HOWTO/a628.html

If you don't want to install and burn a rom then just make a gpxe/ipxe disk/usb/floppy.

Pxe or etherboot has nothing to do with what I want to do.
The commands I'm suggesting to dump eeprom (where the nic stores mac and other register information) do not dump the oprion rom that you are talking about (where the, sometimes optional, network loader resides).
Actually I think that the dm9601 based nics don't even support the option rom to store a net loader.
The 93c46 is a 1024 bit (128 byte) eeprom and cannot store a network loader ... it can only store some register information.
If you can supply what I'm asking for please do so if not pleas stop inputting information that has nothing to do with what I'm asking for.

I got the ebay seller to refund me for having sent me 4 factory defective units.