How many Voodoo5 proto's were there, well here the ones I do know of:
3dfx Voodoo5 5000 AGP x4 Rev.A0 3300
3dfx Voodoo5 5000 AGP x4 Rev.A0 3700
3dfx Voodoo5 5000 PCI Rev.A1 0900
3dfx Voodoo5 5500 AGP Rev.A1 4199 the Comdex 1999 card.
3dfx Voodoo5 5500 AGP Rev.A0 1400 AGP x2 prototype
3dfx Voodoo5 5500 AGP x4 Rev.A1 3300 no DVI
3dfx Voodoo5 5500 AGP x4 Rev.A2 3700 no DVI
3dfx Voodoo5 5500 AGP x4 Rev.A2 3300 + DVI
3dfx Voodoo5 6000 AGP Rev.A1 4999-41 2x2 card with Intel Bridge chip. Comdex 1999 Prototype
Intel Revision series.
3dfx Voodoo5 6000 AGP Rev.A0 0700
3dfx Voodoo5 6000 AGP Rev.A1 1500
3dfx Voodoo5 6000 AGP Rev.A1 1700
3dfx Voodoo5 6000 AGP Rev.A1 1900
Hint Series 1
3dfx Voodoo5 6000 AGP Rev.A2 2600 with 5,4 ns ram
3dfx Voodoo5 6000 AGP Rev.A2 2600
3dfx Voodoo5 6000 AGP Rev.A2 2700
Hint series 2
3dfx Voodoo5 6000 AGP Rev.A3 3400
3dfx Voodoo5 6000 AGP Rev.A3 3500
Hint Series 3
3dfx Voodoo5 6000 AGP Rev.A 3600
3dfx Voodoo5 6000 AGP Rev.A 3700
3dfx Voodoo5 6000 AGP Rev.A1 3700
3dfx Voodoo5 6000 AGP Rev.A2 3700
3dfx Voodoo5 6000 AGP Rev.A3 3700 with 5,4 ns Ram
3dfx Voodoo5 6000 AGP Rev.A 3900 ??? dunno heard it from an aussie
as far as I know these are all the Voodoo5 proto's if there are more, please fill in the listing
Here the funny part, I couldn't find any listings of photo's of Voodoo5 5500 PCI proto cards,wierd huh