Lenovo G580 Manual

							Lenovo G480/G485/G580/G585/G780
77
Lenovo G480/G485/G580/G585
Lenovo G780
When installing: Before you attach the fan assembly to the computer, apply 
thermal grease, at an amount of 0.2 grams, to the     part shown in the figure 
above. Either too much or too less grease application can cause a thermal 
problem due to imperfect contact with a component.
b
a
a 
						

							Lenovo G480/G485/G580/G585/G780 Hardware Maintenance 
Manual
781140 CPU
For access, remove these FRUs in order:
 “1010 Battery pack” on page 34
 “1020 Dummy card” on page 35
 “1030 Optical drive/Hard disk drive (HDD)/Memory/Central processing 
unit/Mini PCI Express Card slot compartment cover” on page 36
 “1040 Hard disk drive” on page 39
 “1050 Optical drive” on page 43
 “1060 DIMM” on page 45
 “1070 PCI Express Mini Card for wireless LAN/WAN” on page 47
 “1080 Keyboard” on page 49
 “1090 Keyboard bezel” on page 52
 “1100 Speakers (Lenovo G480/G485/G580/G585)” on page 59
 “1110 System board” on page 60
 “1130 Fan assembly and Heat Sink assembly” on page 74
Attention: CPU is extremely sensitive. When you service the CPU, avoid any 
kind of rough handling.
Figure 14. Removal steps of CPU
Rotate the head of the screw in the direction shown by arrow   to release the 
lock, then remove the CPU in the direction shown by arrow  .
Lenovo G480/G485/G580/G585
ab
a
b
1
2 
						

							Lenovo G480/G485/G580/G585/G780
79
Lenovo G780
When installing: Place the CPU on the CPU socket in the direction shown by 
arrow  , and then rotate the head of the screw in the direction shown by arrow 
 to secure the CPU.
a
b
1
2 
						

							Lenovo G480/G485/G580/G585/G780 Hardware Maintenance 
Manual
801150 Base cover
For access, remove these FRUs in order:
 “1010 Battery pack” on page 34
 “1020 Dummy card” on page 35
 “1030 Optical drive/Hard disk drive (HDD)/Memory/Central processing 
unit/Mini PCI Express Card slot compartment cover” on page 36
 “1040 Hard disk drive” on page 39
 “1050 Optical drive” on page 43
 “1060 DIMM” on page 45
 “1070 PCI Express Mini Card for wireless LAN/WAN” on page 47
 “1080 Keyboard” on page 49
 “1090 Keyboard bezel” on page 52
 “1100 Speakers (Lenovo G480/G485/G580/G585)” on page 59
 “1110 System board” on page 60
 “1120 LCD unit” on page 70
Figure 15. Removal steps of base cover
Remove the bluetooth card in the direction shown by arrow  .
a
1 
						

							Lenovo G480/G485/G580/G585/G780
81
Figure 15. Removal steps of base cover (continued)
Lenovo G780
Remove the four screws  .  Then remove the speakers by lifting in the direction 
shown by arrows  .
StepScrew (quantity)ColorTorque
M2.0×5.7+2 mm, flat-head,
nylok-coated (4)Black 2.0-2.5 kgfcm
bc
22
223
3
b 
						

							Lenovo G480/G485/G580/G585/G780 Hardware Maintenance 
Manual
821160 LCD front bezel
For access, remove these FRUs in order:
 “1010 Battery pack” on page 34
 “1020 Dummy card” on page 35
 “1030 Optical drive/Hard disk drive (HDD)/Memory/Central processing 
unit/Mini PCI Express Card slot compartment cover” on page 36
 “1040 Hard disk drive” on page 39
 “1050 Optical drive” on page 43
 “1060 DIMM” on page 45
 “1070 PCI Express Mini Card for wireless LAN/WAN” on page 47
 “1080 Keyboard” on page 49
 “1090 Keyboard bezel” on page 52
 “1100 Speakers (Lenovo G480/G485/G580/G585)” on page 59
 “1110 System board” on page 60
 “1120 LCD unit” on page 70
Figure 16. Removal steps of LCD front bezel
Remove the two screws  .
Lenovo G480/G485/G580/G585
a 
						

							Lenovo G480/G485/G580/G585/G780
83
Lenovo G780
StepScrew (quantity)ColorTorque
G480/G485/G580/G585: M2.5×6.0 mm, 
flat-head, nylok-coated (2)
G780: M2.5×5.0 mm, flat-head, 
nylok-coated (2)White
Black2.0-2.5 kgfcm
2.0-2.5 kgfcm
1
1
a 
						

							Lenovo G480/G485/G580/G585/G780 Hardware Maintenance 
Manual
84
Figure 16. Removal steps of LCD front bezel (continued)
Remove the LCD front bezel in the direction shown by arrows  .
Lenovo G480/G485/G580/G585
Lenovo G780
b
2
2
2
2
2
2
2
2 
						

							Lenovo G480/G485/G580/G585/G780
85 1170 LCD panel, LCD cable and hinges
For access, remove these FRUs in order:
 “1010 Battery pack” on page 34
 “1020 Dummy card” on page 35
 “1030 Optical drive/Hard disk drive (HDD)/Memory/Central processing 
unit/Mini PCI Express Card slot compartment cover” on page 36
 “1040 Hard disk drive” on page 39
 “1050 Optical drive” on page 43
 “1060 DIMM” on page 45
 “1070 PCI Express Mini Card for wireless LAN/WAN” on page 47
 “1080 Keyboard” on page 49
 “1090 Keyboard bezel” on page 52
 “1100 Speakers (Lenovo G480/G485/G580/G585)” on page 59
 “1110 System board” on page 60
 “1120 LCD unit” on page 70
 “1160 LCD front bezel” on page 82
Figure 17. Removal steps of LCD panel, LCD cable and hinges
Remove the four screws   to release the LCD panel. Gently lift the LCD panel 
a little and detach the integrated camera connector in the direction shown by 
arrow  . Remove the LCD panel in the direction shown by arrows  .
Lenovo G480/G485/G580/G585
a
bc
1
1
1
12
3
3
3 
						

							Lenovo G480/G485/G580/G585/G780 Hardware Maintenance 
Manual
86
Lenovo G780
StepScrew (quantity)ColorTorque
M2.5×4.0 mm, flat-head, 
nylok-coated (4)Black 2.0-2.5 kgfcm
2
1
1
3
3
3
1
1
a