The card I received from Superbiiz/eWiz today was indeed the XFX ZHFC model. The heatsink/fan still seems pretty hefty to me and not cheap at all. The quality of the board still seems pretty decent for as cheap as the card was.
I flashed
rhildinger's ROM from the ZDFC onto this card and it seems to be working fine for the most part so far. VGA does not work of course. Dual DVI does work, but one of my monitors (a cheap Acer P221w) causes the jumping cursor problem. When I disconnect the Acer P221w (my secondary monitor) and leave my Westinghouse L2410NM connected the cursor jumping goes away.
The cursor jumping problem may be HDCP related as when I try to play an HiDef TV show on iTunes on the P221w, I get an HDCP warning message and a gray screen, which does not happen when connected to the HD2600XT. The HiDef shows play fine on the L2410NM.
I may make a custom ROM when I have some time, but it may not be any different as ATIFlash reports the same BIOS version for the ZHFC and ZDFC images. Only the SSID and Part numbers have changed. I may make a custom ROM with faster fan speeds at some point, because the card seems to get pretty hot and it is already a lot quieter than my HD2600XT crossfire setup.
Here is the output from ATIFlash:
Old SSID: 2445
New SSID: 2441
Old P/N: 113-HD487AZHF81_113-BA0706-101
New P/N: 113-BA0706-101
Old DeviceID: 9440
New DeviceID: 9440
Old Product Name: Wekiva RV770 B50706 Board
New Product Name: Wekiva RV770 B50706 Board
Old BIOS Version: 011.013.000.001.030513
New BIOS Version: 011.013.000.001.030513
Flash type: PM25LV010
20000/20000h bytes programmed
20000/20000h bytes verified
In the mean time, I may just put my HD2600XT in the other slot to drive my second display. I also have another DVI monitor I can test, but that one is not HDCP capable. I may give it a try tomorrow.