I just did dump the rom on both the apple 7300 GT and the XFX 7300 GT I bought tonight... bad news. Looks like Lord Blackadder was right. Looks like Apple is still up to their old ways. They are still using 128k roms.
This was all done with nvflash version 5.36
XFX 7300 GT
nvflash --list
<0> GeForce 7300 GT (10DE,0393,1682,4006) H:N B:01,PCI,D:00,F:00
Image Size : 65024 bytes
Version : 05.73.22.25.81
~CRC32 : 548C3CFB
Subsystem Vendor ID : 1682
Subsystem ID : 4006
Hierarchy ID : Normal Board
EEPROM ID (9D,7B) : PMC Pm25LV512 2.7-3.6V 64Kx8S, page
Saved to XFX7300.rom
Apple 7300 GT
nvflash --list
<0> GeForce 7300 GT (10DE,0393,0000,0400) H:N B:01,PCI,D:00,F:00
Image Size : 102912 bytes
Version : 05.73.22.29.A0
~CRC32 : BBF10FE5
Subsystem Vendor ID : 0000
Subsystem ID : 0400
Hierarchy ID : Normal Board
nvflash --check
EEPROM ID (1F,60) : Atmel AT25F1024 2.7-3.6V 128Kx8S, page
Saved to APL7300.rom
AND:
As suspected, OSX won't work with it. No gray screen when booting.
When booting into windows, it did see it. I slapped on the little SLI connector, and got a message saying "Your motherboard is not qualified for SLI". Damnit!
Found nothing really good online regarding how to fix that. One suggestion was to try older drivers. I was running 91.31, downloaded 84.21 to try. 84.21 doesn't support the 7300 GT. Used the driver CD from the XFX CD, 84.26. This time it says I can enable SLI just as soon as I remove the incompatible video card in my system. Not sure what that would be, as there is no other video card in my system other than the two 7300 GT's.
I used slot 1 and 2, both set at 8X.
So, as of now, no luck with SLI... but I haven't given up on it yet.
Oh and the XFX video card looks similar but the PCB is quite different from the Apple 7300 GT. The heat sink looks to be identical, but that's about it.