AMD Athlon Manuale utente

23986—December 2000 Socket A AMD Processor Installation Guide

Socket A

AMD Processor

Installation Guide

Thank you for purchasing a Socket A AMD processor.

Before installing the new AMD processor in a system,

please review this installation guide in its entirety.

Note:

The product(s) received may vary in appearance from the products illustrated.

FailuretoinstalltheAMDAthlon™ortheAMDDuron™processorproperly

mayadverselyaffectoperationandmayvoidyourwarrantycoverage.

DONOTinstalltheprocessorifithasbeendamaged!

Socket A AMD Processor Installation Guide 23986—December 2000

Recommended Configuration

The AMD Athlon™ and AMD Duron™ processors are leading-edge processors that

require high-performance components to operate at maximum overall efficiency.

Do not attempt to install these AMD processors with an inadequate power supply,

memory, or other supporting components.

For the latest information on the components that have been tested by AMD and are

recommended for best performance, always check the AMD web site. For successful

operation of the AMD Socket A processors, AMD strongly recommends selecting a

recommended motherboard and heatsink from our website at the following URLs:

http://www1.amd.com/athlon/config

http://www1.amd.com/duron/config

Beware of Static Electricity

The AMD Athlon and AMD Duron processors and all computer motherboards have

sensitive electronic components that can be easily damaged by static electricity. We

recommend that you leave the processor and motherboard in their original packaging

until you are ready to install them. The installer should only touch the edges of the

processor, and never touch the processor pins.

IMPORTANT

Never touch a processor without wearing a functioning grounded antistatic strap. We

recommend that all unpacking and installation be done on a grounded antistatic mat.

Both the antistatic wristband and the antistatic mat must be grounded at the same

point. After removing the processor from its package, place it directly on the

antistatic mat.

23986—December 2000 Socket A AMD Processor Installation Guide

Installation Procedure

You must adhere to the step-by-step procedures listed on the following pages to

successfully install the AMD Athlon and AMD Duron processors in a personal

computer system motherboard. Any deviation from this procedure may result in a

processor failure.

You can installl the processor in the motherboard either before or after installing the

motherboard in the system chassis. It is usually easier to install the processor onto the

motherboard before installing the completed assembly into the case.

Normally it is better to install the processor and heatsink before installing any

memory modules.

It is recommended that you trial-fit the heatsink on the processor socket to verify that

the fan power cable can easily reach a designated connector. If there are any

problems, go to step 20 and follow the instructions.

Caution: Never start the processor unless the heatsink is properly and firmly

attached. THERMAL FAILURE WILL RESULT—THE PROCESSOR WILL BE

PERMANENTLYDAMAGED.

Note: In this guide, the AMD Athlon or AMD Duron processor is installed in Socket A

of the motherboard before installing the motherboard and processor assembly into the

system chassis. This is usually the easiest way to install the processor and heatsink.

Socket A AMD Processor Installation Guide 23986—December 2000

1. Figure 1 shows the processor socket on a motherboard. Note that the release lever

on the side of the socket is down. This position is used to lock the processor in

place. Before installing the processor, this lever must be raised by first pushing

the lever sideways to unlatch it and then raising it all the way up (approximately

90°).

Figure 1. Processor Socket with Lever Down.

2. Figure 2 shows the release lever raised completely. The lever must be in a fully

raised position before the processor can be installed.

Note: In this guide, the phrase “top of the socket” refers to the end of the socket that

reads “Socket 462”.

Figure 2. Processor Socket with Lever Raised

Release Lever

Top of Socket

Lever Raised

23986—December 2000 Socket A AMD Processor Installation Guide

3. Figure 3 shows the underside (pin side) of the processor. Notice how the pin array

at the two upper corners in the picture are angled and there are no pins in either

top corner. Notice also that there are no pin positions in the top corners of the

socket (near where it is labeled “Socket 462”). The processor must be positioned

so the processor and socket pin patterns match. When positioned properly, the 45°

cut corner of the processor will be next to the release pivot.

Figure 3. Underside of the Processor Showing Pin Corner Keys

4. Figure 4 shows the processor dropping into the socket. Notice how the corner

located near the release lever pivot is the 45° cut corner. This is verification that

the processor has been installed properly.

It should take no significant force to install the processor. This is a zero insertion

force socket (often referred to as a ZIF socket). If the processor does not fall into

the socket, check the pin alignment and make sure that the release lever is raised

up completely. If the installation of the processor requires any significant amount

of force, then something is wrong. (Check the pins, and lever position.)

Figure 4. Placing the Processor in the Socket

Corners with

Missing Pins Missing Pin

Positions

° Cut

Corner

Socket A AMD Processor Installation Guide 23986—December 2000

5. Figure 5 shows the processor installed and the release lever lowered to lock the

processor in place. With the processor now properly installed, the heatsink and

fan assembly can be attached.

WARNING: Do not power up the processor without the heatsink properly and firmly

attached. THE PROCESSOR WILL SUFFER THERMAL FAILURE and PERMANENT

DAMAGE WILL RESULT!

Notice the rubber pads on each corner of the processor. These pads are required

to ensure the proper installation of the heatsink. They should never be removed.

There must be four pads. If a pad is missing, please return the processor to your

supplier. Do not use it—die damage may result.

Also notice the lugs on the socket. In later steps, the center lugs will be used for

the heatsink isntallation.

Figure 5. Processor Installed and the Lever Lowered

Rubber Pads

Top Center Lug

Bottom Center Lug

23986—December 2000 Socket A AMD Processor Installation Guide

6. Figure 6 shows a sampling of the typical heatsink assemblies that are commonly

used on the AMD socketed processors. Notice that the assemblies vary in size, fin

density, and clip design. The appropriate heatsink to use will be determined by:

• The list of approved thermal solutions on the AMD website.

• Availability of the approved thermal solution in your area.

Log onto the www. amd

.com

website for a listing of tested heatsink/fans that AMD

recommends.

Only use a heatsink/fan assembly that has been AMD tested and recom-

mended for your AMD processor speed and model

. The proper heatsink is essential.

Notice the two different types of heatsink retaining clips shown in Figure 6. The

style with the slight hook is designed to be installed with the open end of a nut-

driver (looks like a screwdriver with a socket attached). The style of clip with the

slotted end is designed to be pushed down with a screwdriver inserted into the

slot.

Caution: When engaging the heatsink clip with either installation tool, use extreme

care when pressing down on the clip. If the tool slips off the clip, the system

motherboardcanbedamaged.

Figure 6. Typical Heatsinks Suitable for Use with Socket A AMD Processors

Hook

Slot

Socket A AMD Processor Installation Guide 23986—December 2000

7. Figure 7 shows the bottom of a heatsink with a step. The stepped portion fits over

the top of the socket, where the legend “Socket 462” is molded into the plastic.

When the heatsink is correctly installed, the heatsink base will not touch any

portion of the socket.

Caution:Theprocessorwilloverheatandfailiftheheatsinkisnotinstalledsothatit

sits parallel to the top of the processor, or if the heatsink touches any part of the

socketitself. Thismayresultinpermanent damagetotheprocessor.

Figure 7. Underside of Heatsink with Stepped Bottom Surface

8. Figure 8 shows the bottom of the smallest heatsink from the previous page. This

heatsink has a flat bottom and its placement on the processor is determined by

the asymmetrical retaining clip used to hold the heat sink to the processor

(Figure 13 shows an example of an asymetrical clip).

Figure 8. Underside of Small-sized Heatsink with Flat Bottom Surface

Stepped Portion

of Heatsink Base

23986—December 2000 Socket A AMD Processor Installation Guide

9. Figure 9 shows the proper way to remove the plastic film from the phase-change

thermally conductive compound.

Note: The phase-change thermal compound is very important to the efficiency and

success of the heatsink. The compound must be applied evenly to the surface of the

heatsink so it can (basically) melt and fill any microscopic voids in the surfaces of the

processor and heatsink with a thermally conductive material.

Caution: If you have never installed a heat sink with this type of phase-change

thermal material, we suggest that you not remove this film until after you have

practicedinstalling the heatsink andmountingtheclipsonthesocket.It may take a

few trials until you are familiar with the procedure. If you want to become familiar

with the process, skip the tape removal step for now and proceed to repeat Step 10

throughStep19.

Notice in Figure 9 that the film is removed by pulling rapidly at a right angle to

the base. A quick lifting motion is the best way to remove this film. Be aware that:

• Once the film is removed, immediately install the heatsink.

• The thermal compound must not come in contact with any foreign material.

Caution: Do not remove the heatsink from the processor, once it has been

permanently installed. The phase-change thermal adhesive material cannot be

reused.Removetheplasticfilmcompletelyfromtheheatsinkduringtheinstallation

to avoid causing the processor to overheat and be damaged when power is applied.

Pay strict attention to the procedures outlined in this document to avoid missing a

crucial step.

Figure 9. Pull Tape from Thermal Material with a Quick Motion

Socket A AMD Processor Installation Guide 23986—December 2000

10.Figure 10 shows the WRONG way to install the heatsink. Do not tilt and push the

heatsink onto the processor because doing so increases the chances of cracking

the processor die. Instead, install the heatsink carefully with the bottom of the

heatsink nearly parallel to the top surface of the processor. When properly

installed, the heatsink will rest on the four rubber pads. The heatsink will come in

contact with the processor die only when the retaining clip is fully installed.

Caution:Neverpushdownontheheatsink.Thiscancauseirreparabledamagetothe

processordie. Allforceshouldbeappliedonly totheclip.

Figure 10. The WRONG WAY to Install a Socket A AMD Processor Heatsink

THIS IS WRONG!

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