I suspect the message may be SB IRQ conflicting with PCI IRQ? What operating system are you using? If its Win98(se) then have a look under start/programmes/accessories/system tools/sytem information/hardware resources/conflicts/sharing and also under the same string but under IRQ. This should show you what the conflict is. If you are using Win XP I'm not sure how you get at the same information but I am sure that an XPert will be along shortly. You then should be able to re-assign the IRQs to resolve the problem. One thing to try is to go into your CMOS settings as you boot up. Look under the section marked Plug and Play (PnP) an see if your PnP is set to Yes. If it is, try setting it to No (this lets BIOS assign the IRQs). It can sometimes resolve the problem.