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Dell OptiPlex 7770 All-in-One Service Manual

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Screw size list

Table 1. OptiPlex 7770 All-in-OneThe following table shows the screw list and the images for different components/locations:
ComponentScrew typeQuantityScrew image
Cable coverM3x91Image: M3x9 screw
System board shieldM3x55Image: M3x5 screw
Solid-state drive/Intel Optane cardM2x2.51Image: M2x2.5 screw
WLAN card shieldM2x2.52Image: M2x2.5 screw
WLAN cardM2x2.51Image: M2x2.5 screw
System FanM3x53Image: M3x5 screw
Pop-up camera assembly M3x52Image: M3x5 screw
Pop-up camera bezelM3x53Image: M3x5 screw
Pop-up camera assembly moduleM3x52Image: M3x5 screw
Base coverM3x54Image: M3x5 screw
PSU cableM3x51Image: M3x5 screw
Power supply unit—PSUM3x51Image: M3x5 screw
Power supply unit fan—PSU fanM3x52Image: M3x5 screw
Input and Output bracketM3x53Image: M3x5 screw
System boardM3x59Image: M3x5 screw
SpeakersM3x4+7.19Image: M3x4+7.1 screw
Power button boardM3x51Image: M3x5 screw
Microphones (4 modules)M2x2.54Image: M2x2.5 screw
Input and Output board shieldM3x52Image: M3x5 screw
Input and Output boardM2.5x3.52Image: M2.5x3.5 screw
Headset portM3x51Image: M3x5 screw
AntennasM2x2.52Image: M2x2.5 screw
Display panelM3x512Image: M3x5 screw
Middle frameM3x516Image: M3x5 black screw

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