achieve speeds above 143 MHz without suffering from VSA-100 "death". This revision used an Intel PCI bridge chip, was equipped with 128 MB of 5.4ns SDRAM and used a proprietary external 3dfx power supply. Initial models had the chips mounted in the arrangement seen in the photograph, but this required a PCB with eight circuitry layers (most GeForce 2 cards were four-layer, while the Voodoo 5 5500 was six-layer) and would have been unreasonably expensive. All of the later revisions had the four chips mounted in a row. HiNT Revision 2 (model 2000–2900) This version dropped the Intel PCI bridge chip in favor of a HiNT bridge chip. These cards were able to be powered by either the internal system PSU or by a proprietary 3dfx external power supply, a feature seen in all subsequent prototype revisions. The clock speed varied from card to card, generally either 166 or 183 MHz. The VSA-100 chips used still did not have a long life expectancy, and may have had problems running anti-aliasing. This revision had 128 MB of 5.0ns SDRAM. HiNT Revision 3 (model 3000–3500) Cards from this revision varied in stability from dead to fully functional. A lot of problems had been fixed in this revision, but it still had VSA-100 thermal death problems above 183 MHz. These cards either had 166 or 183 MHz VSA-100 GPUs. HiNT Revision 4 (3600–3700) 3dfx decided on 166 MHz due to issues with the 6000 running properly at 183 MHz due to a design flaw with the PCB. Most of the problems seen in earlier revisions were fixed, although there may have been glitches while in anti-aliasing mode on some cards. Most of the known cards are revision A from week 37, 2000. HiNT Revision 5 (model 3900) Little is known about this series except that this is the final revision. It was meant to be the retail unit, but shortly after the run of 10 were produced, the 6000 series was cancelled. List 1 Texture mapping units:render output units Successor The successor to the Voodoo 5 series, codenamed "Rampage", was already planned and had been in development for years. It was supposed to have a smaller semiconductor process, support for DDR SDRAM, 200+ MHz core, and a T&L unit. However, it was early in its development and only approximately twenty working cards were produced before 3dfx went bankrupt, and most assets were purchased