Hi i own the following PC with the following specs: Pentium 4 3.06Ghz with Hyper-Threading Technology 1024Mb PC3200 DDR RAM 400Mhz 120gb HardDrive with 8mb Cache Leadtek Winfast A350 Ultra MyTivo TDH Geforce FX5900 256Mb RAM with Leadteks 53.03 Detonator FX Drivers This is on a p4s800 ASUS motherboard which has 800mhz FSB and AGP 8x. For exact specifications see: http://uk.asus.com/products/mb/socket478/p4s800/overview.htm Now i'm a keen gamer and i've always benchmarked my PC regularly to see the performance of the drivers. Its now come to my attention that with one bench mark program that my PC isn't scoring as higher as other PCs with simililar spec's and the same graphics card. I have checked absolutely everything with my BIOS and system set-up including my graphic settings. Everything is set to performance, my graphics card is running in AGP 8x showing 256mb RAM. In my BIOS i have hyper-threading enabled, it shows my graphic cards memory as 256mb and the BIOS is set to AGP 8x. FastWrite for my graphics card is ENABLED and all my motherboard drivers are up to date including my SiS AGP driver. (version 117) When i run the SiS AGP Utility that comes with the downloaded SiS AGP driver updates i am shown this: Now this shows that my graphics card is running in all the right modes (AGP 8x and FastWrite enabled) but under the section "AGP Bus Capability" it says that FastWrite is NOT supported. When i orgionally looked at this PC i thought that the graphics card would be most suited to this motherboard with it having AGP version 3.0 and AGP 8x. I also assumed that FastWrite was available and when i see it in my BIOS i figured it was available and enabled. But according to this utility my "AGP Bus Capability" doesn't support fastwrite! What i would like to know is, does the p4s800 SiS 648FX motherboard support fastwrite and if it does (which i presumed it does) why is this utility showing me that i don't have the capability. If it is supported how do i go about enabling as i believe having fastwrite disabled is the reason behind my low bench mark scores because i have looked at every possible option. I hope someone on this forum will have the knowledge i'm looking for about the p4s800 motherboard. Thanks for any replys.