How to Build a Computer with
AMD Socket A Athlon or Duron Processor
Part 4 - Install the Motherboard
and Display Adapter
Last updated: 4/18/2001
the Motherboard. There are nine mounting holes on the motherboard: three
across the back, and two rows of three across the front.
32. Set the motherboard with the anti-static bag on top
of the side of the case. Use
it as visual guide to screw nine standoffs to the case. Screw-in the
standoffs by hand and then use a socket driver to tighten them (you could
use an adjustable wrench or pliers if you are careful).
Do not over-tighten. What remains when they
break can be very difficult to remove. Count them to verify there
are nine of them.
33. Gently place the motherboard in the case so the mounting
holes are centered over their respective stand-offs.
Don't force the motherboard into the case--wiggle
it into place if you have to. BE careful with the metal contacts
on the keyboard connector. they stick out so they will make contact
with the case and can get hung-up in one of the holes. If you see
a mounting hole without a stand-off, you didn't install nine of them
or, worse, one of them is in the wrong hole and under the motherboard
where it will short-it-out. I've done it more than once. It
is a very common mistake.
the back of the computer to see if the I/O connectors are aligned with their
35. Mount the motherboard to the standoffs with nine
M3*5L screws. The correct screws look like chassis screws except they
are smaller and have a finer thread. I call them "Packard-Bell
Other cases use larger screws. I usually check
alignment and screw-in one screw at the center of the rear of the board,
check alignment again, and screw-in another at the front, followed by
the remainder. Do not over-tighten these screws. You could damage
I have installed two of these motherboards in two
KS282 cases. Either the motherboards or the cases were not punched
correctly. In both cases (pun?), the holes along the right side
motherboard did not exactly match up with the standoffs. This is
not unheard of, but was more common a few years ago. The way to
handle this problem is to screw in all of the other screws loosely so
that the motherboard can still be moved around. Then screw in the
screws along the right side without tightening. If you are careful
and patient you should be able to get all three of them in without using
excessive persuasion and cross-threading them. Once that is done
tighten all of the screws and check them to be sure none of them are
36. Double-check that you have secured the motherboard
with nine screws and that all of them properly seated (not cross-threaded).
Besides securing the motherboard to the case, most
or all--I can't see all four layers of the board--of these screws electrically
ground the board to the case.
37. Plug the chassis fan wire into the appropriate
jack on the motherboard (the one marked FAN3 for this motherboard), coil-up
the excess wire, and zip-tie it.
38. Remove the rubber band from the front panel cables.
Attach the front panel cable labeled "POWER SW" to connector labeled "POW-ON" on
the motherboard (Front right).
40. Connect the front panel connector labeled "SPEAKER" to
the motherboard connector labeled "SPEAKER."
It is important to connect the speaker now so you
can hear any BIOS error beeps when you first power-up the computer. I
do not install the rest of the front panel connectors until I'm sure
I do not have to remove the motherboard.
the rubber band from the power supply connectors, untangle them and connect
the ATX motherboard power plug to the socket on the motherboard just
in front CPU with clip facing towards the right. Firmly push it down
until it snaps into place. It will only plug-in one-way.
the Display Adapter.
42. Unpack the display adapter and put the CD, etc. that
came with it in the motherboard box.
43. Insert the display adapter into the AGP slot (the brown
one), fasten the back of the card to the case with a chassis screw, and push
firmly and evenly down on the card to fully seat it in the socket.
Sometimes an expansion board will pop-up a little
at the front when it is screwed down.
44. Inspect the sides of the AGP socket to be sure
the display adapter is fully and evenly seated.
45. Shake the case for loose screws. If you
see a small rubber standoff, it probably came from the CPU...
46. Visually inspect everything for possible mistakes and
defects. Check the display adapter and memory again. Check the
Your computer should look like the one in the picture at
the top of this page.
the pdf version of this article
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