Clevo PB71EF User manual

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Notebook Computer
PB70EF / PB71EF
Service Manual

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Notice
The company reserves the right to revise this publication or to change its contents without notice. Information contained
herein is for reference only and does not constitute a commitment on the part of the manufacturer or any subsequent ven-
dor. They assume no responsibility or liability for any errors or inaccuracies that may appear in this publication nor are
they in anyway responsible for any loss or damage resulting from the use (or misuse) of this publication.
This publication and any accompanying software may not, in whole or in part, be reproduced, translated, transmitted or
reduced to any machine readable form without prior consent from the vendor, manufacturer or creators of this publica-
tion, except for copies kept by the user for backup purposes.
Brand and product names mentioned in this publication may or may not be copyrights and/or registered trademarks of
their respective companies. They are mentioned for identification purposes only and are not intended as an endorsement
of that product or its manufacturer.
Version 1.0
February 2019
Trademarks
Intel and Intel Core are trademarks of Intel Corporation.
Windows® is a registered trademark of Microsoft Corporation.
Other brand and product names are trademarks and /or registered trademarks of their respective companies.

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About this Manual
This manual is intended for service personnel who have completed sufficient training to undertake the maintenance and
inspection of personal computers.
It is organized to allow you to look up basic information for servicing and/or upgrading components of the PB70EF /
PB71EF series notebook PC.
The following information is included:
Chapter 1, Introduction, provides general information about the location of system elements and their specifications.
Chapter 2, Disassembly, provides step-by-step instructions for disassembling parts and subsystems and how to upgrade
elements of the system.
Appendix A, Part Lists
Appendix B, Schematic Diagrams
Appendix C, Updating the FLASH ROM BIOS

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IMPORTANT SAFETY INSTRUCTIONS
Follow basic safety precautions, including those listed below, to reduce the risk of fire, electric shock and injury to per-
sons when using any electrical equipment:
1. Do not use this product near water, for example near a bath tub, wash bowl, kitchen sink or laundry tub, in a wet
basement or near a swimming pool.
2. Avoid using a telephone (other than a cordless type) during an electrical storm. There may be a remote risk of elec-
trical shock from lightning.
3. Do not use the telephone to report a gas leak in the vicinity of the leak.
4. Use only the power cord and batteries indicated in this manual. Do not dispose of batteries in a fire. They may
explode. Check with local codes for possible special disposal instructions.
5. This product is intended to be supplied by a Listed Power Unit as follows:
• AC Input of 100 - 240V, 50 - 60Hz, DC Output of 19.5V, 11.8A (230 Watts) minimum AC/DC Adapter.
FCC Statement
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
This device may not cause harmful interference.
This device must accept any interference received, including interference that may cause undesired operation.

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Instructions for Care and Operation
The notebook computer is quite rugged, but it can be damaged. To prevent this, follow these suggestions:
1. Don’t drop it, or expose it to shock. If the computer falls, the case and the components could be damaged.
2. Keep it dry, and don’t overheat it. Keep the computer and power supply away from any kind of heating element. This
is an electrical appliance. If water or any other liquid gets into it, the computer could be badly damaged.
3. Follow the proper working procedures for the computer. Shut the computer down properly and don’t forget to save
your work. Remember to periodically save your data as data may be lost if the battery is depleted.
Do not expose the computer
to any shock or vibration.
Do not place it on an unstable
surface.
Do not place anything heavy
on the computer.
Do not expose it to excessive
heat or direct sunlight.
Do not leave it in a place
where foreign matter or mois-
ture may affect the system.
Don’t use or store the com-
puter in a humid environment.
Do not place the computer on
any surface which will block
the vents.
Do not turn off the power
until you properly shut down
all programs.
Do not turn off any peripheral
devices when the computer is
on.
Do not disassemble the com-
puter by yourself.
Perform routine maintenance
on your computer.

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4. Avoid interference. Keep the computer away from high capacity transformers, electric motors, and other strong mag-
netic fields. These can hinder proper performance and damage your data.
5. Take care when using peripheral devices.
Power Safety
The computer has specific power requirements:
• Only use a power adapter approved for use with this computer.
• Your AC adapter may be designed for international travel but it still requires a steady, uninterrupted power supply. If you are
unsure of your local power specifications, consult your service representative or local power company.
• The power adapter may have either a 2-prong or a 3-prong grounded plug. The third prong is an important safety feature; do
not defeat its purpose. If you do not have access to a compatible outlet, have a qualified electrician install one.
• When you want to unplug the power cord, be sure to disconnect it by the plug head, not by its wire.
• Make sure the socket and any extension cord(s) you use can support the total current load of all the connected devices.
• Before cleaning the computer, make sure it is disconnected from any external power supplies.
Use only approved brands of
peripherals.
Unplug the power cord before
attaching peripheral devices.
Do not plug in the power
cord if you are wet.
Do not use the power cord if
it is broken.
Do not place heavy objects
on the power cord.
Power Safety
Warning
Before you undertake
any upgrade proce-
dures, make sure that
you have turned off the
power, and discon-
nected all peripherals
and cables (including
telephone lines and
power cord). It is advis-
able to also remove
your battery in order to
prevent accidentally
turning the machine
on.

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Battery Precautions
• Only use batteries designed for this computer. The wrong battery type may explode, leak or damage the computer.
• Do not continue to use a battery that has been dropped, or that appears damaged (e.g. bent or twisted) in any way. Even if the
computer continues to work with a damaged battery in place, it may cause circuit damage, which may possibly result in fire.
• Recharge the batteries using the notebook’s system. Incorrect recharging may make the battery explode.
• Do not try to repair a battery pack. Refer any battery pack repair or replacement to your service representative or qualified service
personnel.
• Keep children away from, and promptly dispose of a damaged battery. Always dispose of batteries carefully. Batteries may explode
or leak if exposed to fire, or improperly handled or discarded.
• Keep the battery away from metal appliances.
• Affix tape to the battery contacts before disposing of the battery.
• Do not touch the battery contacts with your hands or metal objects.
Battery Guidelines
The following can also apply to any backup batteries you may have.
• If you do not use the battery for an extended period, then remove the battery from the computer for storage.
• Before removing the battery for storage charge it to 60% - 70%.
• Check stored batteries at least every 3 months and charge them to 60% - 70%.
Battery Disposal
The product that you have purchased contains a rechargeable battery. The battery is recyclable. At the end of its useful life, under var-
ious state and local laws, it may be illegal to dispose of this battery into the municipal waste stream. Check with your local solid waste
officials for details in your area for recycling options or proper disposal.
Caution
Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer.
Discard used battery according to the manufacturer’s instructions.
Battery Level
Click the battery icon in the taskbar to see the current battery level and charge status. A battery that drops below a level of 10%
will not allow the computer to boot up. Make sure that any battery that drops below 10% is recharged within one week.

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Related Documents
You may also need to consult the following manual for additional information:
User’s Manual on CD/DVD
This describes the notebook PC’s features and the procedures for operating the computer and its ROM-based setup pro-
gram. It also describes the installation and operation of the utility programs provided with the notebook PC.
System Startup
1. Remove all packing materials.
2. Place the computer on a stable surface.
3. Insert the battery and make sure it is locked in position.
4. Securely attach any peripherals you want to use with the
computer (e.g. keyboard and mouse) to their ports.
5. When first setting up the computer use the following pro-
cedure (as to safeguard the computer during shipping, the bat-
tery will be locked to not power the system until first connected
to the AC/DC adapter and initially set up as below):
• Attach the AC/DC adapter cord to the DC-In jack on the left of
the computer, then plug the AC power cord into an outlet, and
connect the AC power cord to the AC/DC adapter and leave
it there for 6 seconds or longer.
• Remove the adapter cord from the computer’s DC-In jack,
and then plug it back in again; the battery will now be
unlocked.
6. Use one hand to raise the
lid/LCD to a comfortable viewing
angle
(do not exceed 130 degrees)
;
use the other hand (as
illustrated in Figure 1) to support the base of the computer
(Note:Never lift the computer by the lid/LCD).
7. Press the power button to turn the computer “on”.
Figure 1
Opening the Lid/LCD/
Computer with AC/DC
Adapter Plugged-In
130°
Shut Down
Note that you should always shut your computer down by
choosing the Shut down command in Windows (see be-
low). This will help prevent hard disk or system problems.
1. Click the Start Menu icon .
2. Click the Power item .
3. Choose Shut Down from the menu.

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Contents
Introduction ..............................................1-1
Overview .........................................................................................1-1
Specifications ..................................................................................1-2
External Locator - Top View with LCD Panel Open ......................1-4
External Locator - Front & Right Side Views .................................1-5
External Locator - Left Side & Rear View .....................................1-6
External Locator - Bottom View .....................................................1-7
Mainboard Overview - Top (Key Parts) .........................................1-8
Mainboard Overview - Bottom (Key Parts) ....................................1-9
Mainboard Overview - Top (Connectors) .....................................1-10
Mainboard Overview - Bottom (Connectors) ...............................1-11
Disassembly ...............................................2-1
Overview .........................................................................................2-1
Maintenance Tools ..........................................................................2-2
Connections .....................................................................................2-2
Maintenance Precautions .................................................................2-3
Disassembly Steps ...........................................................................2-4
Removing the Battery ......................................................................2-5
Removing the Keyboard ..................................................................2-6
Removing the Hard Disk Drive .......................................................2-7
Removing the System Memory (RAM) ..........................................2-9
Removing the M.2 SSD Module ...................................................2-10
Removing the Wireless LAN Module ...........................................2-11
Wireless LAN, Combo Module Cables .........................................2-12
Removing the CCD .......................................................................2-13
Part Lists ..................................................A-1
Part List Illustration Location ........................................................A-2
Top ................................................................................................. A-3
Bottom ............................................................................................A-4
Main Board ................................................................................... A-5
HDD .............................................................................................. A-6
LCD ............................................................................................... A-7
Schematic Diagrams.................................B-1
System Block Diagram ...................................................................B-2
Processor 1/6 ...................................................................................B-3
Processor 2/6 ...................................................................................B-4
Processor 3/6 ...................................................................................B-5
Processor 4/6 ...................................................................................B-6
Processor 5/6 ...................................................................................B-7
Processor 6/6 ...................................................................................B-8
DDR4 CHA SO-DIMM_0 ..............................................................B-9
DDR4 CHB SO-DIMM_0 ............................................................B-10
Panel .............................................................................................B-11
HDMI ............................................................................................B-12
Mini DP Port .................................................................................B-13
PS8330B .......................................................................................B-14
PS8331 ..........................................................................................B-15
GPU 1/6 ........................................................................................B-16
GPU 2/6 ........................................................................................B-17
Frame Buffer Partition A ..............................................................B-18
Frame Buffer Partition A ..............................................................B-19
Frame Buffer Partition B ..............................................................B-20
Frame Buffer Partition B ..............................................................B-21
GPU 3/6 ........................................................................................B-22
Frame Buffer Partition C ..............................................................B-23
Frame Buffer Partition C ..............................................................B-24
Frame Buffer Partition D ..............................................................B-25
Frame Buffer Partition D ..............................................................B-26
GPU 4/6 ........................................................................................B-27

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GPU 5/6 ........................................................................................ B-28
IFP I/O Interface ........................................................................... B-29
GPU 6/6 ........................................................................................ B-30
GPU NVVDD, FBVDDQ ............................................................ B-31
GPU GND .................................................................................... B-32
GPU Decoupling .......................................................................... B-33
GPU Decoupling 2 ....................................................................... B-34
GPU Pwr Ctrl, Level Shift ........................................................... B-35
PCH 1/9 ........................................................................................ B-36
PCH 2/9 ........................................................................................ B-37
PCH 3/9 ........................................................................................ B-38
PCH 4/9 ........................................................................................ B-39
PCH 5/9 ........................................................................................ B-40
PCH 6/9 ........................................................................................ B-41
PCH 7/9 ........................................................................................ B-42
PCH 8/9 ........................................................................................ B-43
PCH 9/9 ........................................................................................ B-44
HDD Port ...................................................................................... B-45
M.2 WLAN+BT ........................................................................... B-46
M.2 PCIEX4 SATA ..................................................................... B-47
CCD, FP ....................................................................................... B-48
USB .............................................................................................. B-49
USB Redriver ............................................................................... B-50
ANX7440 ..................................................................................... B-51
USB+DP Type-C ......................................................................... B-52
TPM .............................................................................................. B-53
LAN RTL8111H .......................................................................... B-54
ALC1220 ...................................................................................... B-55
EC ITE8587 .................................................................................. B-56
Fan, TP, Smart AMP PWR .......................................................... B-57
LED Keyboard Ctrl ...................................................................... B-58
LID ............................................................................................... B-59
TR-TBT ........................................................................................B-60
AR_TBT_SP PWR .......................................................................B-61
TPS65987 .....................................................................................B-62
TBT/Type C ..................................................................................B-63
Conn_to Extend Board .................................................................B-64
3.3VA, 3.3V, 3.3VS, 5VS ............................................................B-65
PWR_SW VCCST, STG, SFR_OC ..............................................B-66
PWR_SW 1V8_AON, RUN .........................................................B-67
VDD3, VDD5 ...............................................................................B-68
DDR 1.2V, 0.6VS, 2.5V ...............................................................B-69
1.8VA, 1.05VA .............................................................................B-70
VCCIO ..........................................................................................B-71
VCore, VCCGT, VCCSA .............................................................B-72
VCore Output Stage ......................................................................B-73
VCCGT, VCCSA .........................................................................B-74
NVVDD 1 & 2 ..............................................................................B-75
NVVDD 3 .....................................................................................B-76
PEX_VDD ....................................................................................B-77
FBVDDQ ......................................................................................B-78
AC-In, Charger .............................................................................B-79
LED Board ....................................................................................B-80
Power Board .................................................................................B-81
HDD Board ...................................................................................B-82
Audio Board, Fan ..........................................................................B-83
Audio Board_USB ........................................................................B-84
Audio Board_AMP, Jack ..............................................................B-85
Per Keyboard ................................................................................B-86
RTS5250 .......................................................................................B-87
AMP TPA2008D2 ........................................................................B-88
Subwoofer .....................................................................................B-89
Smart AMP ...................................................................................B-90
Smart AMP for Subwoofer ...........................................................B-91

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Speaker Con ................................................................................. B-92

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Introduction
Overview 1 - 1
1.Introduction
Chapter 1: Introduction
Overview
This manual covers the information you need to service or upgrade the PB70EF / PB71EF series notebook computer.
Information about operating the computer (e.g. getting started, and the Setup utility) is in the User’s Manual. Information
about dri-vers (e.g. VGA & audio) is also found in the User’s Manual. The manual is shipped with the computer.
Operating systems (e.g. Windows 10, etc.) have their own manuals as do application softwares (e.g. word processing and
database programs). If you have questions about those programs, you should consult those manuals.
The PB70EF / PB71EF series notebook is designed to be upgradeable. See Disassembly on page 2 - 1 for a detailed
description of the upgrade procedures for each specific component. Please take note of the warning and safety informa-
tion indicated by the “ ” symbol.
The balance of this chapter reviews the computer’s technical specifications and features.

Introduction
1 - 2 Specifications
1.Introduction
Specifications
Latest Specification Information
The specifications listed here are correct at the
time of sending them to the press. Certain items
(particularly processor types/speeds) may be
changed, delayed or updated due to the manu-
facturer's release schedule. Check with your
service center for more details.
CPU Speed & Computer in DC Mode
Note that when the computer is in DC mode
(powered by the battery only) the CPU may not
run at full speed. This is a design feature imple-
mented in order to protect the battery.
Processor Options
i9-8950HK (2.90GHz)
12MB Smart Cache, 14nm, DDR4-2666MHz, TDP 45W
i7-8750H (2.20GHz)
9MB Smart Cache, 14nm, DDR4-2666MHz, TDP 45W
Core Logic
Intel® HM370 Express Chipset
LCD Options
17.3" (43.94cm), 16:9, FHD (1920x1080)
BIOS
128Mb SPI Flash ROM
INSYDE BIOS
Memory
Dual Channel DDR4
Two 260 Pin SO-DIMM Sockets
Supporting DDR4 2666MHz Memory Modules
Memory Expandable from 8GB (minimum) up to 64GB
(maximum)
Compatible with 4GB, 8GB, 16GB or 32GB Modules
(The real memory operating frequency depends on the FSB
of the processor.)
Supports XMP 3000MHz (XMP is processor dependent)
Security
Security (Kensington® Type) Lock Slot
BIOS Password
Intel PTT for Systems Without TPM Hardware
(Factory Option) TPM 2.0
(Factory Option) Fingerprint Sensor
Video Adapter Options
Microsoft Hybrid Graphics Mode or Discrete Graphics
Mode
Supports up to 4 Active Displays
Supports NVIDIA Surround View via HDMI x 1, MiniDP x1
and Display Port over Type-C
Intel Integrated GPU
Intel® UHD Graphics 630
Dynamic Frequency
Intel Dynamic Video Memory Technology
Microsoft DirectX®12 Compatible
NVIDIA® Discrete GPU
NVIDIA® GeForce RTX 2070
8GB GDDR6 Video RAM
Microsoft DirectX®12 Compatible
Pointing Device
(Factory Option) Built-in Touchpad/Secure Pad (with Micro-
soft PTP Multi Gesture & Scrolling Functionality)
Keyboard
Full Size Multi Full Color LED Keyboard (with numeric key-
pad)
Or
(Factory Option) Full Size Full Color “Per Key” LED Key-
board (with numeric keypad)
Storage
One changeable 2.5" (6cm) 7.0mm (h) SATA (Serial) Hard
Disk Drive/Solid State Drive (SSD)
(Factory Option)One M.2 SATA/PCIe Gen3 x4 Solid State
Drive (SSD)

Introduction
Specifications 1 - 3
1.Introduction
Audio
High Definition Audio Compliant Interface
S/PDIF Digital Output
Built-In Array Microphone
Two Speakers
One Subwoofer
Sound BlasterX® Pro-Gaming 360°
Communication
1.0M HD PC Camera Module
Built-In 10/100/1000Mb Base-TX Ethernet LAN
WLAN/ Bluetooth M.2 Modules:
(Factory Option) Intel® Dual Band Wireless-AC 9260 Wire-
less LAN (802.11ac) + Bluetooth
(Factory Option) Intel® Dual Band Wireless-AC 9560 Wire-
less LAN (802.11ac) + Bluetooth
(Factory Option) Intel® Dual Band Wireless-AC 9462 Wire-
less LAN (802.11ac) + Bluetooth
(Factory Option) Qualcomm® Atheros Killer™ Wireless-AC
1550i Wireless LAN (802.11ac) + Bluetooth
Card Reader
Embedded Multi-In-1 Push-Push Card Reader
MMC (MultiMedia Card) / RS MMC
SD (Secure Digital) / Mini SD / SDHC/ SDXC
M.2 Slots
Slot 1 for Combo WLAN and Bluetooth Module
Slot 2 for SATA or PCIe Gen3 x4 SSD
Slot 3 for PCIe Gen3 x4 SSD
Interface
One USB 3.1 Gen 2 Type-C Port*
*The maximum amount of current supplied by USB Type-C
ports is 500mA (USB 2.0)/900mA (USB 3.1).
Or
(Factory Option) One Thunderbolt 3 Port**
**The maximum amount of current supplied by Thunderbolt 3
port is 3000mA.
Three USB 3.0 (USB 3.1 Gen 1) Type-A Ports (Including one
AC/DC Powered USB Port)
One DisplayPort 1.3 over USB 3.1 Gen 2 Type-C Port
One Mini DisplayPort 1.3
One HDMI-Out Port
One 2- In-1 Audio Jack (Microphone and S/PDIF Optical)
One 2- In-1 Audio Jack (Headphone and Microphone)
One RJ-45 LAN Jack
One DC-In Jack
Features
Intel® Optane™ Technology
Supports NVIDIA® G-SYNC™ Technology
(NVIDIA® G-SYNC™ Technology is supported by some LCD
panels and RTX series video adapters Only)
Virtual Reality Ready
Windows® Mixed Reality Compatible
(Factory Option) USB Drive
USB 3.1 Gen 2
Note that when a single USB device is plugged
in to a USB 3.1 Gen 2 port the data transfer
speed will be 10Gbps, however when two devic-
es are plugged in to both USB 3.1 Gen 2 ports,
this bandwidth will be shared between the ports.
Environmental Spec
Temperature
Operating: 5°C - 35°C
Non-Operating: -20°C - 60°C
Relative Humidity
Operating: 20% - 80%
Non-Operating: 10% - 90%
Power
Removable 6 Cell Smart Lithium-Ion Battery Pack, 62WH
Full Range AC/DC Adapter
AC Input: 100 - 240V, 50 - 60Hz
DC Output: 19.5V, 11.8A (230W)
Dimensions & Weight
399mm (w) * 275mm (d) * 29.9mm (h)
2.9kg (Barebone with 62WH Battery)

Introduction
1 - 4 External Locator - Top View with LCD Panel Open
1.Introduction
External Locator - Top View with LCD Panel Open
Figure 1
Top View
1. PC Camera
2. *PC Camera LED
*When the PC
camera is in use,
the LED will be
illuminated.
3. Built-In Array
Microphone
4. LCD
5. Power Button
6. Keyboard
7. Touchpad &
Buttons
8. Fingerprint Sensor
(Optional)
2 1
8
7
6
5
4
33

Introduction
External Locator - Front & Right Side Views 1 - 5
1.Introduction
External Locator - Front & Right Side Views Figure 2
Front View
1. LED Indicator
2. Multi-in-1 Card
Reader
Figure 3
Right Side View
1. USB 3.1 Gen 2
Type-C Port
Or
(Factory Option)
Thunderbolt 3
Port
2. USB 3.0 (USB 3.1
Gen 1) Type-A
Port
3. Vent
FRONT VIEW
1
2
RIGHT SIDE VIEW
123

Introduction
1 - 6 External Locator - Left Side & Rear View
1.Introduction
External Locator - Left Side & Rear View
/
Figure 4
Left Side View
1. Security Lock Slot
2. Vent
3. *Powered USB
3.0 (USB 3.1 Gen
1) Type-A Port
4. 2-In-1 Audio Jack
(Microphone and
S/PDIF Optical)
5. 2-In-1 Audio Jack
(Headphone and
Microphone)
LEFT SIDE VIEW
1234 5
Figure 5
Rear View
1. Vent
2. RJ-45 LAN Jack
3. HDMI-Out Port
4. Mini DisplayPort
1.3
5. DisplayPort 1.3
over USB 3.1 Gen
2 Type-C Port
6. USB 3.0 (USB 3.1
Gen 1) Type-A
Port
7. DC-In Jack
REAR VIEW
1 1
2 3 4 5 6 7

Introduction
External Locator - Bottom View 1 - 7
1.Introduction
External Locator - Bottom View
Figure 6
Bottom View
1. Vent
2. Battery
3. Speakers
4. Subwoofer
Overheating
To prevent your com-
puter from overhea-
ting, make sure no-
thing blocks any vent
while the computer is
in use.
1
3
1
1
2
1
3
4

Introduction
1 - 8 Mainboard Overview - Top (Key Parts)
1.Introduction
Mainboard Overview - Top (Key Parts)Figure 7
Mainboard Top
Key Parts
1. KBC-ITE IT8587
1