Building or Upgrading Systems - Upgrading and Repairing PCs - page 1207

5. Install the new motherboard into the case or the motherboard tray. Either screw it dir-
ectly tothestandoffsorslide thestandoffsalready attached totheboardbysliding the
entire board into position. Be sure you align the I/O shield with the case or the ports
on the back of the board with the I/O shield already in the case. Often, you will have
to set the board into the case and slide it sideways to engage the standoffs into the
slotsinthecase.Whentheboardisintheproperposition,thescrewholesintheboard
should be aligned with all the metal standoffs or screw holes in the case. Figure 19.19
shows a motherboard attached to a motherboard tray being installed in the chassis.
Figure 19.19 Installing a motherboard and tray into the chassis.