Quote:can you bench the modded bios with changed timings and the modded bios without changed timings?
1x (changed timings)
tBWL BKWR to Pre at 0
tRL to PRE at 1
Number of Sgram/Sdram chipsets from 0 to 1
1x (timings are original)
tBWL BKWR to Pre at 1
tRL to PREat 0
Number of Sgram/Sdram chipsets from 0 to 1
i want to see the difference if there is one...
I have allready done what you asked for. See previos page...
Quote:The BIOS that I used for testing on my moded Voodoo 4 with 64 Mb had a few changes oposed to the standard 3DFX 1.15 original BIOS, other than the necesary change of the bit that controles the number of memory banks. Those differences occured not intentionaly and they were fixed into the latest "relese" of the 4800's BIOS. This last one, publicaly available by the courthesy of Mikulaish, has only one change made to the original 1.15 BIOS, as described above. The rest is identical, including RAM timings. Today I flashed my homemade Voodoo 4 4800 64Mb with this release and I have done the exact same testing work as previous, to be able to compare the results with those I got yesterday.
Here are the numbers:
Home-made Voodoo 4 4800 64 Mb @ AGP 4x :
No FSAA : 1578 3D marks
2x FSAA : 804 3D marks
In conclusion:
1x (changed timings)
tBWL BKWR to Pre at 0
tRL to PRE at 1
Number of Sgram/Sdram chipsets from 0 to 1
Voodoo 4 AGP 64 Mb AGP4x :
No FSAA : 1576 3D marks
2x FSAA : 803 3D marks
and:
1x (timings are original)
tBWL BKWR to Pre at 1
tRL to PREat 0
Number of Sgram/Sdram chipsets from 0 to 1
No FSAA : 1578 3D marks
2x FSAA : 804 3D marks