Dell XPS 400 Dual Core 2.8Ghz, 512MB, 160G, 128M ATI, DVDRW & DVDXPS400 PC Desktop "se x1" Questions

x1 slot.36 contact pins. 18 on each side.Next down is another example of a PCI-Express x16 slot.Last example is an example of a PCI slot. TOTALLY different technology than PCI-Express.124 contact pins

...X1 mode,but when I hit F2 it operated normally. Brought it to the shop, the next time it started to turn itself off and on again, they replaced the video card. But now I have no sound, and the CD/DVD ...