on a motherboard I am installing,there is a jumper labeled PC/PCI, there is no reference to it in the manual or on the website except it shows the location of it in the manual,,not what it's for,,anybody know??

You caught my interest so I went looking for the answer although I did not find it completely. The best I could see on how to set the jumpers was to look at the mobo's site. This does not tell you much but in looking further I found that for Plug and Play PC's it is set automatically. The most intersting thing I found was an Adobe Acrobat .PDF file that may or may not interest you. http://www.datx.com/images/pdfs/bpci.pdf The best I can figure is that if you were to use ISA devices and you do not have PNP then you would have to set the jumpers. So if your machine is PNP (which it probably is) then why have the jumpers? I do not know. Bryan

I don't know what the jumper is for but have often wondered. I hope someone lets us in on the secret.

I can tell you from the experience with my IWILL DBD100 motherboard. The manual says the jumper is for PCI device compatability. I'm not sure exactly what that means but I can say that for 2 years the only PCI device that I could get to work was my modem. I could only use an ISA sound and an AGP video card. Every PCI sound card would give me very very faint volume at the most. Each time I tried to install a PCI video card I got some message about a PCI bus problem.I finally learned that all I needed to do was to move the PCI jumper pin over to the right. Now I have awesome audio and PCI slot usability. If you have no problems with your PCI bus the jumper setting I think should be fine where it is.

Ruben, sounds right to me, the MB has both ISA and PCI slots so I imagine that the jumper would be to select compatibility.