This Riva TNT2 m64 PCI has been modified by myself to enable it to run on older AT power motherboards (late socket 3, socket 5 and some socket 7). The majority of these cards will not work on AT powered systems because of lack of 3.3 volts from psu and no onboard supply of this voltage for the pci slots on the motherboard. The very few that do work have their own 3.3 volt regulator on the card itself. This card has had a regulator circuit added (low loss DC-DC step down rated at 5amp continuous- card draws 3amp max). You could still run this card in a newer ATX powered system, however I\'d highly recommend disabling the regulator circuit by cutting the red wire.

IMAGE ISSUE please note that although the card is fully functional there is noticeable color bleed in white windows, as per photos. What you see is worst case scenario - higher resolutions do this less and it is virtually indistinguishable in any other color then white, and in games (even games in a window, as per screenshot). Unsure if this is a ramdac or memory or firmware issue, but definitely something buyer needs to be aware about.