I just successfully modded my new Gecube X800 Pro to a 16-pipe XT PE without touching the card. You need a VIVO card for this to work. Here's how, although I'm still on hte Gigabyte BIOS. See no reason to flash anything else because the card seems to run everything without artifacts. Some of the links may be obsolete now, but anyway:
Boot from floppy to DOS prompt
Make BIOS backup:
flashrom -s 0 X800Pro_original.bin
Flash to Gigabyte XT BIOS:
gvf11 -P -F R80X256V_filename.F1
Reboot and make sure it has 16 pipes with ATitool in Windows
Boot floppy again
Flash to ATi XT BIOS:
flashrom -f -p 0 ATIX800XT-filename.bin
You need Gigabyte's XT PE BIOS that comes with its own flashtool, ATI FlashROM 2.37, and you can try using an ATI XT PE BIOS at the end. If the XT BIOS doesn't work for you, flash the BIOS backup you made instead.
Link to Gigabyte BIOS and Flashtool:
http://www.giga-byte.com/Download/D...r80x256v_f1.exe
Link to ATI FlashROM:
http://www.ocfaq.com/softmod/bios/flashrom237.zip
Link to ATI XT PE BIOS:
http://www.ocfaq.com/softmod/bios/A...6.Samsung16.bin
Link to ATItool:
http://atitool.ocfaq.com/
Boot from floppy to DOS prompt
Make BIOS backup:
flashrom -s 0 X800Pro_original.bin
Flash to Gigabyte XT BIOS:
gvf11 -P -F R80X256V_filename.F1
Reboot and make sure it has 16 pipes with ATitool in Windows
Boot floppy again
Flash to ATi XT BIOS:
flashrom -f -p 0 ATIX800XT-filename.bin
You need Gigabyte's XT PE BIOS that comes with its own flashtool, ATI FlashROM 2.37, and you can try using an ATI XT PE BIOS at the end. If the XT BIOS doesn't work for you, flash the BIOS backup you made instead.
Link to Gigabyte BIOS and Flashtool:
http://www.giga-byte.com/Download/D...r80x256v_f1.exe
Link to ATI FlashROM:
http://www.ocfaq.com/softmod/bios/flashrom237.zip
Link to ATI XT PE BIOS:
http://www.ocfaq.com/softmod/bios/A...6.Samsung16.bin
Link to ATItool:
http://atitool.ocfaq.com/