Q. I have a 7800/7900/7600/7300 card and I want to unlock the pipelines like I did on my 6800 LE, how to do this? A. You can't. Q. Are you sure? Then, why not? A. Please see Unwinder's reply here: http://forums.guru3d.com/showthread.php?p=1418355#post1418355 Q. So - which cards *can* be unlocked? A. Only NV40, NV48 and NV43 rev A2 cards that have disabled or hardware-locked vertex/pixel pipelines can be unlocked to better performance in games (and all other programs) These are 6800 AGP8x, 6800 LE AGP8x, 6800 GS AGP8x, 6800 XT AGP8x, 6800 XE, and 6600 LE (only with NV43 rev A2 chips) NB!! Newer 6800 plain/LE/GS/XT cards are often made with NV42 chips instead, and therefore, not possible to unlock... As an example, see http://forums.guru3d.com/showthread.php?t=182249 Q. Ok, I want to buy a new 6800 GS AGP8x card, how can I know if it is made with NV40/NV48 or NV42? A. Look in the specification. Or ask the manufacturer. Also, the core frequency might give an indication, NV40 chips are clocked at 325-350 MHz, the NV42 chips are clocked at 425-520 MHz Also the fabrication process is different; NV40 chips are 130 nm, while NV42 chips are 110 nm. I'm not sure about the NV48 chips, they seem to be 110 nm, and therefore, should be clocked at 400-500 MHz. But those are AFAIK, not produced anymore and may be very hard to find. Q. But that means a NV42 6800 GS AGP8x with 520 MHz core will be faster even when locked at 12x1,5vp than a NV40 6800 GS AGP8x with 325 MHz core which is unlocked from 12x1,5vp up to its full 16x1,6vp?? A. Yes. Q. So where can i find a NV42 6800 GS AGP8x with 520 MHz core? A. There is one here: http://www.palit.com.tw/en/products/nv_agp_6800GS-Sonic.html Q. I thought the NV42 chip was a chip made for PCI Express cards, how can it be used on AGP8x cards? A. With help of the BR02 PCIe-to-AGP bridge. This is what is also used e.g. on 7800 GS AGP8x cards. Q. I have one of those cards with NV40 or NV48, and I want to unlock it to 16x1 pixelpipes + 6 vertexpipes! What to do? A. Search for "try NV40 softmodding" in RivaTuner's ReadMe.htm Q. What is "Quadro-fying"? A. Modifying your GeForce card into its Quadro sibling. Q. Will "Quadro-fying" get better speed? A. No, the usual Direct3D games will have same speed, and OpenGL games will be a bit slower. Q. Then, why should I "Quadro-fy" my card?? A. "Quadro-fying" may give better speed in some OpenGL professional applications, like Maya, Houdini etc. Q. Which cards can be "Quadro-fied"? A. All cards from NV10 to NV40, and also NV43 rev A2, NV45, and NV48 (strapped to "021e") But it seems that NV34 is not stable with any drivers. Q. All these "NV40" and "NV45" codes, where can I find out what they mean? A. Try http://en.wikipedia.org/wiki/Comparison_of_NVIDIA_Graphics_Processing_Units Also, the file "nv4_disp.inf" in the drivers is showing these codes, e.g. NVIDIA_NV48.DEV_0218.1 = "NVIDIA GeForce 6800 XT " . .