background image

Figure 22

Figure 21

Figure 19

Figure 20

fan assembly

clip

clip

clip (grasp here) 

clip (grasp here) 

processor 

card

2-pin connector

heat sink

processor 

card

screw

screw

screw

Installation—Digital Audio Models

Remove Fan Assembly

This section covers the removal of the fan assembly found on some 
Digital Audio models. 

If your machine does not have a fan assem-

bly covering the processor heat sink, skip to “Remove Heat Sink” 
below.

 

1.

 Locate and carefully disconnect the 2-pin connector from the 

processor card 

(Figure 19)

 

2.

 Unlatch the fan assembly’s clips from the processor card and 

the heat sink, then lift the fan assembly out of the case and set it 
aside 

(Figure 20)

Remove Heat Sink

Locate the clips securing the processor heat sink to the processor card 

(Figure 21)

your heat sink may appear different from what is 

pictured

. Using caution to avoid touching the processor card and the 

logic board, grasp one of the clips securing the heat sink with needle-
nose pliers, between the heat sink and processor card. Pull down 
and away to unhook one side of the clip from the processor card 

(Figure 21)

. Push the clip away from you to unhook it from the other 

side. Repeat these steps with the other clip. Once the clips have been 
unhooked, gently lift the heat sink and clips away from the processor 
and set them aside, but not on the logic board. 

 

Remove Processor Card

Remove the three screws securing the processor card to the logic 
board 

(Figure 22)

. Grasping its edges, gently lift one edge of the pro-

cessor card to separate it from the logic board, and then carefully lift it 
straight up and away. 

Di

gi

ta

l A

ud

io

Содержание Encore ST G4

Страница 1: ...cessor installed If a computer experi ences sleep issues with the original processor installed installing this upgrade is unlikely to change that condition In the very rare instance where a computer begins to have sleep issues after a Duet upgrade is installed the problem is iso lated to that specific card and can be resolved by replacing it You Should Have The following items should be included i...

Страница 2: ...This page left intentionally blank ...

Страница 3: ...o section B below Otherwise go to step 2 2 Boot your system in Mac OS 9 2 x the firmware updater will not work in OS X Classic mode As of this writing Apple has not made this firmware updater available as an OS X application 3 Log on to the Internet and type the following in your browser window s address bar http docs info apple com article html artnum 120068 4 Click on the appropriate link to dow...

Страница 4: ...allation of software required to sup port this Encore ST G4 Duet in your computer under Mac OS 9 2 when it is a selectable OS in Startup Disk in System Preferences Please note if you ever start up your computer undr Mac OS 9 2 you MUST run the Crescendo Encore Installer before you install this upgrade card If you do not run the application your computer will not operate with the processor upgrade ...

Страница 5: ... Remove Heat Sink Locate the processor heat sink on the logic board Figure 7 your heat sink may appear different from what is pictured Using caution to avoid touching the processor card and the logic board grasp one of the clips securing the heat sink with needle nose pliers between the heat sink and processor card Pull down and away to unhook one side of the clip from the processor card Figure 7 ...

Страница 6: ...et card Figure 10 and then place the cap on the origi nal processor card s connector 3 Place the processor card you removed from the computer into the anti static package and then store it the original heat sink heat sink clips and the screws you removed in a safe place 4 Align the connector on the bottom of the Duet card with the connector on the logic board Figure 11 and then set the card down o...

Страница 7: ...the logic board do not overtighten the screws Figure 13 Close Computer 1 Raise the side panel back into place Figure 14 2 Return the computer to your computing area if necessary and reconnect the power cord and peripheral cables to the computer Turn On Computer Turn on your Power Mac your accelerated machine should boot normally side panel screw AGP Graphics Gigabit Ethernet WARNING When your comp...

Страница 8: ...omputer and an electrical outlet 3 Touch a port access cover on the back of the computer to dis charge any potential damaging static electricity Figure 15 4 Disconnect the power cord from the computer 5 If present remove the two indicated screws from the back plate of the computer Figure 16 Otherwise go to step 6 6 Locate the security lock at the back of the computer Figure 17 If it is not already...

Страница 9: ...securing the processor heat sink to the processor card Figure 21 your heat sink may appear different from what is pictured Using caution to avoid touching the processor card and the logic board grasp one of the clips securing the heat sink with needle nose pliers between the heat sink and processor card Pull down and away to unhook one side of the clip from the processor card Figure 21 Push the cl...

Страница 10: ...ink clips and the screws you removed in a safe place 4 Align the connector on the bottom of the Duet card with the connector on the logic board Figure 25 and then set the card down on top of the three threaded posts Make sure the connec tors are lined up then grasping the Duet card by its heat sink gently press it straight down until the connectors snap together Verify the connectors are completel...

Страница 11: ... Raise the side panel back into place Figure 28 2 Return the computer to your computing area if necessary and reconnect the power cord and peripheral cables to the computer Turn On Computer Turn on your Power Mac your accelerated machine should boot normally side panel Digital Audio Figure 27 screw screw screw WARNING When your computer is operating the Duet s heat sink will become VERY hot to the...

Страница 12: ...cal outlet 3 Touch a port access cover on the back of the computer to dis charge any potential damaging static electricity Figure 29 4 Disconnect the power cord from the computer 5 Locate the security lock at the back of the computer Figure 30 If it is not already pressed in press it in now 6 With the right side of the case facing you open your Power Mac by lifting the release latch and lowering t...

Страница 13: ... the other side of the clip Repeat these steps with the left clip Once the clips have been unhooked gently lift the heat sink and clips away from the processor card and set them aside but not on the logic board Remove Processor Card 1 Remove the four screws securing the processor card to the logic board Figure 35 2 Grasping its edges gently lift one edge of the processor card to separate it from t...

Страница 14: ...eat sink heat sink clips and all four screws you removed in a safe place 4 Align the connector on the bottom of the Duet card with the connector on the logic board Figure 39 and then set the card down on top of the three threaded posts Make sure the connec tors are lined up then grasping the Duet card by its heat sink gently press it straight down until the connectors snap together Verify the conn...

Страница 15: ...gic board 2 With the back of the computer facing you secure the fan assem bly to the back plate of the computer with the two screws you removed previously Figure 43 3 Raise the side panel back into place Figure 44 4 Return the computer to your computing area if necessary and reconnect the power cord and peripheral cables to the computer Turn On Computer Turn on your Power Mac your accelerated mach...

Отзывы: