Lenovo G70 Manual

							Lenovo G70-70/G70-80/Z70-80
27
This chapter presents the following product-specific service references and 
product-specific parts information:
 “Specifications” on page 27
 “Status indicators” on page 29
 “FRU tests” on page 31

 “FRU replacement notices” on page 32
 “Removing and replacing an FRU” on page 33

 “Parts list” on page 79
The following table lists the specifications of the Lenovo G70-70/G70-80/Z70-80:
Table 1. Specifications
FeatureDescription
Processor See the system properties of your computer. 
You can do this as follows:
Click Control Panel, then click Hardware and Sound, 
click Device Manager under Devices and Printers and 
double click Processors.
Graphic Chipset Intel (R) HD Graphics 5500
NVIDIA GeForce 840M 2G VRAM
NVIDIA GeForce 840M 4G VRAM
Display 16:9 (1,600 × 900 pixels/1,920 × 1,080 pixels)
Standard 
memoryDDR3L-1600MHz 
16 GB 
SODIMM × 2
CMOS RAM 256 bytes
Hard disk drive 2.5-inch, 9.5 mm
Optical drive 9.0 mm, RAMBO
SSD NGFF: 16G
SATA: 128GB/256GB 
Bus architecture 1600-MHz DDR3L SDRAM (PC3L-12800S)
PCI Express bus
DMI
I/O ports HDMI port × 1
USB 2.0 × 2, USB 3.0 × 1
2 in 1 slot × 1 (MMC, SD)
Audio Combo audio jack × 1
Speaker × 2
Built-in microphone
Lenovo G70-70/G70-80/Z70-80
Specifications 
						

							Lenovo G70-70/G70-80/Z70-80 Hardware Maintenance Manual
28
Video HDMI port × 1
WLAN G70-70/G70-80
Intel 802.11ac (1x1) + BT combo card
non-Intel 802.11ac(1x1)+BT combo card
Z70-80
Intel 802.11ac (2x2) +BT combo card
non-Intel 802.11ac (2x2)+BT combo card
Intel 802.11ac (1x1) + BT combo card
WWAN N/A
Bluetooth Not support discrete card
Keyboard New Key Board
Touch pad One piece touch pad
Integrated 
cameraHD/640 × 480 pixels
Battery Lithium-ion
AC adapter 45 W/65 W
Pre-installed 
operating systemLinpus lite/DOS
Win 8.1 
						

							Lenovo G70-70/G70-80/Z70-80
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The system status indicators below show the computer status:
Status indicators
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							Lenovo G70-70/G70-80/Z70-80 Hardware Maintenance Manual
30
Table 2. Status indicators
IndicatorIndicator 
statusCharge 
StatusMeaning
Power status 
indicatorOn (solid 
white)—The computer is powered on.
Blinking — The computer is in sleep mode.
Off — The computer is powered off.
Battery 
status 
indicatorOn (solid 
white)Discharging The battery has more than 20% 
charge. 
Solid 
amberDischarging The battery has between 5% and 20% 
charge.
Fast 
blinking 
amberCharging/
DischargingThe battery has less than 5% charge.
Slow 
blinking 
amberCharging The battery is being charged. When 
battery charge reaches 20%, the 
blinking color changes to white. 
Slow 
blinking 
whiteCharging The battery has between 20% and 
80% charge and is still charging. 
When the battery reaches 80% charge 
the light will stop blinking, but 
charging will continue until the 
battery is fully charged. 
						

							Lenovo G70-70/G70-80/Z70-80
31
You can access certain system settings quickly by pressing the appropriate 
hotkeys.
Table 3. Hotkeys
: Mutes/unmutes the sound.: Enables/disables airplane 
mode.
: Decreases the volume level.: Switches the active 
program.
: Increases the volume level.: Turns on/off the backlight 
of the display.
: Closes the currently active 
window.: Projects to a connected 
display.
: Refreshes the desktop or the 
currently active window.: Decreases display 
brightness.
: 
Enables/disables the touch 
pad and the touch pad 
buttons.
: Increases display 
brightness.
Hotkeys 
						

							Lenovo G70-70/G70-80/Z70-80 Hardware Maintenance Manual
32
This section presents notices related to removing and replacing parts. Read this 
section carefully before replacing any FRU.
Screw notices
Loose screws can cause a reliability problem. In the Lenovo computer, this 
problem is addressed with special nylon-coated screws that have the following 
characteristics:
 They maintain tight connections.
 They do not easily come loose, even with shock or vibration.
 They are harder to tighten.
 Each one should be used only once.
Do the following when you service this machine:
 Keep the screw kit in your tool bag.
 Remove screws carefully for reuse.
 Use a torque screwdriver if you have one.
Tighten screws as follows:
Plastic to plastic
Turn an additional 90° after the screw head touches the surface of the plastic 
part:
Logic card to plastic
Turn an additional 180° after the screw head touches the surface of the logic 
card:
Torque driver
If you have a torque screwdriver , refer to the “Torque” column for each step.
 Make sure that you use the correct screws. If you have a torque screwdriver, 
tighten all screws firmly to the torque shown in the table. Never use a screw 
that you removed. Use a new one. Make sure that all screws are 
tightened firmly.
 Ensure torque screwdrivers are calibrated correctly following country 
specifications.
FRU replacement notices
more than 90°
(Cross-section)
more than 180°
(Cross-section) 
						

							Lenovo G70-70/G70-80/Z70-80
33
This section presents exploded figures with the instructions to indicate how to 
remove and replace the FRU. Make sure to observe the following general rules:
1. Do not attempt to service any computer unless you have been trained and 
certified. An untrained person runs the risk of damaging parts.
2. Before replacing any FRU, review “FRU replacement notices” on page 32.
3. Begin by removing any FRUs that have to be removed before the failing FRU. 
Any of such FRUs are listed at the top of the page. Remove them in the order 
in which they are listed.
4. Follow the correct sequence in the steps to remove the FRU, as given in the 
figures by the numbers in square callouts.
5. When turning a screw to replace an FRU, turn it in the direction as given by 
the arrow in the figure.
6. When removing the FRU, move it in the direction as given by the arrow in the 
figure.
7. To put the new FRU in place, reverse the removal procedures and follow any 
of the notes that pertain to replacement. For information about connecting 
and arranging internal cables, see “Locations” on page 75.
8. When replacing an FRU, use the correct screw as shown in the procedures.
Attention: After replacing an FRU, do not turn on the computer until you have 
made sure that all screws, springs, and other small parts are in place and none 
are loose inside the computer. Verify this by shaking the computer gently and 
listening for rattling sounds. Metallic parts or metal flakes can cause electrical 
short circuits.
Attention: The system board is sensitive to, and can be damaged by, electrostatic 
discharge. Before touching it, establish personal grounding by touching a 
ground point with one hand or using an electrostatic discharge (ESD) strap 
(P/N 6405959) to remove potential shock reasons.
Note: The illustrations used in this section are of the Lenovo Z70-80, unless 
otherwise stated.
Removing and replacing an FRU
DANGER
Before removing any FRU, turn off the computer, unplug all power cords 
from electrical outlets, remove the battery pack, and then disconnect any of 
the interconnecting cables. 
						

							Lenovo G70-70/G70-80/Z70-80 Hardware Maintenance Manual
341010 Battery pack
Figure 1. Removal steps of battery pack
Unlock the manual battery latch  . Slide the spring-loaded latch to the 
unlocked position to eject the battery pack  . Lift up the inner edge of the 
battery pack, pivoting it on the outer edge  . Slide the battery pack in the 
indicated direction to remove it  .
When installing: Install the battery pack along the slide rails of the slot. Then 
make sure that the battery release lever is in the locked position.
DANGER
Only use the battery specified in the parts list for your computer. Any other 
battery could ignite or explode.
ab
cd
a
b
d
c
d 
						

							Lenovo G70-70/G70-80/Z70-80
35 1020 Dummy card
For access, remove this FRU:
 “1010 Battery pack” on page 34
Figure 2. Removal steps of dummy card
Remove the dummy card in the direction shown by arrows    .
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a
b 
						

							Lenovo G70-70/G70-80/Z70-80 Hardware Maintenance Manual
361030 Hard disk drive(HDD)/Memory/Mini PCI Express Card 
slot compartment cover
For access, remove this FRU:
 “1010 Battery pack” on page 34
Figure 3. Removal steps of HDD/Memory/Mini PCI Express Card slot compartment 
cover
Loosen the screws   that secure the compartment cover. Remove the 
compartment cover   .
StepScrew (quantity)ColorTorque
M2.5 × 7 mm, flat-head, nylok-coated 
(2)Black 3.0 kgfcm
ab
ba
a
a