Andy2k

I'm running WIN XP home, Athlon 1100, 512MB RAM. I have the following cards installed: AGP GeForce 2 MX PCI Soundblaster 5.1 PCI 10/100 NIC PCI 4 port USB MS PS2 Keyboard with USB ports, to which I have connected an Intellieye USB Mouse, and an external USB ZIP 100. Panasonic KX-P7100 printer attached to PCI USB card. This keyboard/port is connected to the host USB port 2. First Host USB port has a cable modem attached. I would like to reassign IRQs so that the graphics card and the modem don't share anything - XP doles out both IRQ sharing and USB Bandwidth sharing as it sees fit. Is it possible to use the PCILOCK function in the BOOT.INI of XP? if so, do I just add the line at the start? turning off ACPI is a major pain - I'd prefer it if XP could take card of the rest of the stuff, if I could force it to assign a couple of unique IRQs for the AGP card and the Modem.

Another thing to look at is IRQ conflicts. Under XP, IRQs are shared - everything on a USB port will usually be assigned a logical IRQ, but they will point to a single physical IRQ (usually 9) DO you have any other USB devices running? Is modem USB?

Is it possible to vary the 'fixed' amount of bandwidth that the system reserves for each USB port? I'm running a cable modem on USB, and also have a 4 USB port PCI card, and a MS keyboard with USB ports. The Modem is plugged into USB 1, and the keyboard port is plugged into USB 2. I have a USB mouse on the keyboard hub, and a ZIP drive (this gets swapped out with other devices sometimes) There will only be a printer on the 4 port card. I noticed that one of the USB ports (1 I think) has 20% of system bandwidth assigned to it, and all the others have 10%. Even when I only had the two ports by themselves, these percentages didn't change. Disabling a couple of the Ports on the PCI card didn't do anything to this either. Is there any way to reassign the resources so that the port with the Modem has a greater percentage of bandwidth reserved? I tried to connect the modem via an ethernet NIC, but the software that came with the modem sulked, and refused to reasign DHCP IP addresses for it, which is why I went back to USB. Am using Win XP home, with all service packs/updates. Athlon 1100, 512 MB RAM. Cable modem should be at 600K/s but usually only manages 200K. I have Norton Firewall and AV running, but disabling these doesn't seem to make a great difference to the speed. Any help appreciated.