Vmod 3850 through BIOS apparently IS possible....

[eva2000]

strange I still seem to be doing something wrong using hxden to edit my bioses ?

I tried editing bo fox's HIS HD3850 bios from 736/982 to 810/999

hexcmp3 differences

Different between:
First file: "K:\Videocards\3850\mybios\modded\512MB_HIS_HD3850_bioskit\bofox\HIS3850_512MB_3870volt.rom"
Second file: "K:\Videocards\3850\mybios\modded\512MB_HIS_HD3850_bioskit\bofox_810999\HIS3850_512MB_810999.rom"
Shift: 0
------------------------------------------------------------------------

First file: "K:\Videocards\3850\mybios\modded\512MB_HIS_HD3850_bioskit\bofox\HIS3850_512MB_3870volt.rom"
Second file: "K:\Videocards\3850\mybios\modded\512MB_HIS_HD3850_bioskit\bofox_810999\HIS3850_512MB_810999.rom"
Shift: 0
Shift: 0
------------------------------------------------------------------------

0000AAE8 |       80 1F       98 7F | 0000AAE8 |       68 3C       3C 86 |
------------------------------------------------------------------------
0000B808 |                   80 1F | 0000B808 |                   68 3C |
0000B810 |    98 7F                | 0000B810 |    3C 86                |
------------------------------------------------------------------------
0000B838 |                   80 1F | 0000B838 |                   68 3C |
0000B840 |    98 7F                | 0000B840 |    3C 86                |
0000B848 |                   80 1F | 0000B848 |                   68 3C |
0000B850 |    98 7F                | 0000B850 |    3C 86                |
0000B858 |                   80 1F | 0000B858 |                   68 3C |
0000B860 |    98 7F                | 0000B860 |    3C 86                |
0000B868 |                   80 1F | 0000B868 |                   68 3C |
0000B870 |    98 7F                | 0000B870 |    3C 86                |
------------------------------------------------------------------------

And still when using atiflash 3.49 when i flash to 810/999 version my bios version goes blank ??? flash back to bo fox's version and fine ??

attached bo fox's bios and my 810/999 and also 810/999 with same checksum as original 736/982 bios of 7500 (this one flashes with bios version intact but rivatuner shows blank device)