Brian Frank 0 Posted March 6, 2001 Okay, Im looking to suck out every last ounce of power from my system. I have the Asus A7V rev.1004. Ive overclocked everything I can, but Im wondering about some settings in BIOS regarding the AGP settings. Ive got the Voodoo 4 4500 AGP as my video card. There these two settings for AGP drive control for manual settings: agp drive strength p control-default is at C, and agp drive strength n control-default is at E. Both options go from 0-9 to A-F. Now how do these affect my performance, if at all and which way do I set them: closer to E or closer to 0? Also will this AGP fast write do anything to benefit from being used? Options are Disabled and Enabled. My specs are on the signature line for any help. ------------------ Whaazzzupppppppppp! Asus A7V Duron 600@680 384 MB SDRAM PC133@113MHz Samsung 48x CD-ROM Toshiba 12x DVD-ROM Zip CD650 USB 4/4/6 Zip 100 USB Maxtor 20.4 GB ATA100 Voodoo 4 4500 AGP Guillemot Maxi Sound Fortissimo SIIG 3 port 1394 PCI Adapter D-Link DFE-530 10/100 NIC Creative Cambridge Soundworks FPS1000 MS Intellimouse Optical Kleer 17-inch @ 85Hz 1152x864x32 desktop Share this post Link to post
CPORonin 0 Posted March 6, 2001 The 3dfx Voodoo series of cards are not TRUE AGP cards like most of the Nvidia cards. So adjusting any AGP driving strength or value will have little if any effect. Here's some info from a site I can't recall tho on that portion of the BIOS. ----------------------------- AGP Driving Value Options : 00 to FF (Hex numbers) This option is slaved to the AGP Driving Control BIOS function. If you set the AGP Driving Control to Auto, then the value you set here won't have any effect. In order for this BIOS option to work, you need to set the AGP Driving Control to Manual. The AGP Driving Value determines the signal strength of the AGP bus. The higher the value, the stronger the signal. The range of Hex values (00 to FF) translates into 0 to 255 in decimal values. By default, the AGP Driving Value is set to DA (218) but if you are using an AGP card based on the NVIDIA GeForce2 line of GPUs, then it's recommended that you set the AGP Driving Value to the higher value of EA (234). Due to the nature of this BIOS option, it's possible to use it as an aid in overclocking the AGP bus. The AGP bus is sensitive to overclocking, especially in AGP4X mode and with sidebanding enabled. As such, a higher AGP Driving Value may be just what you need to overclock the AGP higher than normally possible. By raising the signal strength of the AGP bus, you can improve its stability at overclocked speeds. But be very, very circumspect when you increase the AGP Driving Value on an overclocked AGP bus as your AGP card may be irreversibly damaged in the process! BTW, contrary to some reports, increasing the AGP Driving Value won't improve the performance of the AGP bus. It is not a performance enhancing option so you shouldn't increase the value unless you need to. ------------------------------ Hope this helps. Share this post Link to post
