Clevo NS50AU / NS51AU Notebook

Notebook Computer

NS50AU / NS51AU

Service Manual

Preface

Preface

I

Preface

Preface

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 ven­dor. 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 publica­tion, 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
April 2023

Trademarks

Pentium and Celeron 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.

II

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 NS50AU /
NS51AU 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.

Preface

Appendix A, Part Lists
Appendix B, Schematic Diagrams

Preface

III

Preface

IMPORTANT SAFETY INSTRUCTIONS

Follow basic safety precautions, including those listed below, to reduce the risk of fire, electric shock and injury to per­sons 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 electrical 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 with an AC Input of 100 - 240V, 50 - 60Hz, DC Output of 19V,

4.74A (90 Watts) minimum AC/DC Adapter.

Preface

IV

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.

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.

Preface

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.

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.

Do not expose it to excessive
heat or direct sunlight.

Do not leave it in a place
where foreign matter or mois­ture may affect the system.

Don’t use or store the com­puter in a humid environment.

Do not place the computer on
any surface which will block
the vents.

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 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 com­puter by yourself.

Perform routine maintenance
on your computer.

Preface

V

Preface



Power Safety

Warning

Before you undertake
any upgrade proce­dures, make sure that
you have turned off the
power, and discon­nected all peripherals
and cables (including
telephone lines and
power cord). It is advis­able to also remove
your battery in order to
prevent accidentally
turning the machine
on.

4. Avoid interference. Keep the computer away from high capacity transformers, electric motors, and other strong magnetic
fields. These can hinder proper performance and damage your data.

5. Take care when using peripheral devices.

Preface

VI

Use only approved brands of
peripherals.

Unplug the power cord befor e
attaching 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.

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.

Battery Precautions



Battery Disposal

The product that you have purchased contains a rechargeable battery. The battery is recyclable. At the end of its useful life, under var­ious 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.

• 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%.

Preface

Preface

VII

Preface

Figure 1

Opening the Lid/LCD/Computer
with AC/DC Adapter Plugged-In



Shut Down

Note that you should always shut your computer down by choosing the
Shut down command in Windows (see below). 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.

130°



Powering the

Computer On

After every disassem­bly, make sure that the
bottom case’s screws
are all inserted and
tightened before turn­ing the computer on.

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 pro­gram. 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. Securely attach any peripherals you want to use with the
computer (e.g. keyboard and mouse) to their ports.

4. When first setting up the computer use the following
procedure (as to safeguard the computer during shipping,
the battery will be locked to not power the system until first
connected to the AC/DC adapter and initially set up as

Preface

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. The battery will now be unlocked.

5. Use one hand to raise the
angle

(do not exceed 180 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).

6. Press the power button on the left side of the computer to
turn it on (note that the lid/LCD must be open for the power
button to function).

VIII

lid/LCD to a comfortable viewing

Contents

Preface

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 ..................................................................2-7

Removing the System Memory (RAM) ..........................................2-9

Removing the Wireless LAN Module ........................................... 2-11

Wireless LAN, and Combo Module Cables ..................................2-12

Removing the M.2 SSD Module ...................................................2-13

Removing the CCD .......................................................................2-15

Part Lists ..................................................A-1

Part List Illustration Location ........................................................A-2

Top .................................................................................................A-3

Bottom ............................................................................................ A-4

LCD ................................................................................................ A-5

MB ................................................................................................. A-6

Schematic Diagrams................................. B-1

System Block Diagram ...................................................................B-2

Processor 1/13 .................................................................................B-3

Processor 2/13 .................................................................................B-4

Processor 3/13 .................................................................................B-5

Processor 4/13 .................................................................................B-6

Processor 5/13 .................................................................................B-7

Processor 6/13 .................................................................................B-8

Processor 7/13 .................................................................................B-9

Processor 8/13 ...............................................................................B-10

Processor 9/13 ...............................................................................B-11

Processor 10/13 .............................................................................B-12

Processor 11/13 .............................................................................B-13

Processor 12/13 .............................................................................B-14

Processor 13/13 .............................................................................B-15

DDR5 SO-DIMM A .....................................................................B-16

DDR5 SO-DIMM B .....................................................................B-17

HDMI ............................................................................................B-18

Audio Codec .................................................................................B-19

M.2 PCIE Gen4 SSD2 ..................................................................B-20

M.2 PCIE Gen4 SSD1 ..................................................................B-21

USB Port .......................................................................................B-22

Panel .............................................................................................B-23

IT5570 ...........................................................................................B-24

RGB KB, LID Conn .....................................................................B-25

WLAN/BT ....................................................................................B-26

CCD ..............................................................................................B-27

Type-C USB .................................................................................B-28

Retimer 1/2 ...................................................................................B-29

Preface

IX

Preface

Retimer 2/2 ................................................................................... B-30

Type-C .......................................................................................... B-31

Fan, TP ......................................................................................... B-32

VDD3, VDD5 ............................................................................... B-33

VDDQ, VDDQ_VTT, 1.8VA ...................................................... B-34

3.3VA, 1.8VS ............................................................................... B-35

2.5V, VCCST, VCCSTG .............................................................B-36

MP2964 Controller ....................................................................... B-37

VCore ........................................................................................... B-38

VCCGT ........................................................................................B-39

VCCIN AUX ................................................................................ B-40

3.3V, 5V, 3VS, 5VS, CTL ...........................................................B-41

Charger ......................................................................................... B-42

AC_In ........................................................................................... B-43

Multi Board - USB, LED .............................................................B-44

Multi Board - RTL8111H RTD3 ................................................. B-45

Preface

Audio Board ................................................................................. B-46

OZ711LV2 ................................................................................... B-47

Hall Sensor Board ........................................................................B-48

X

Chapter 1: Introduction

Overview

This manual covers the information you need to service or upgrade the NS50AU / NS51AU 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. Window 11, 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.

Introduction

The NS50AU / NS51AU 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 informa­tion indicated by the “” symbol.

The balance of this chapter reviews the computer’s technical specifications and features.

1.Introduction

Overview 1 - 1

Introduction



Latest Specification Information

The specifications listed in this section are cor­rect at the time of going to press. Certain items
(particularly processor types/speeds) may be
changed, delayed or updated due to the manu­facturer's release schedule. Check with your
service center for details.

Note that this computer model series may sup­port a range of CPUs and/or video adapters.

To find out which CPU is installed on your sys­tem go to the Start menu and select Settings,
and then select System and click About. This
will also provide information on the amount of
Installed RAM etc.

To get information on your system’s video

adapter go to the Start menu and select Set-
tings, and then select System and click Dis-
play > Advanced display settings > Display
adapter properties.



CPU

The CPU is not a user serviceable part. Ac­cessing the CPU in any way may violate your
warranty.

Specifications

1.Introduction

Processor Options

i7-1355U (1.70GHz), TDP 15W
i5-1335U (1.30GHz), TDP 15W

i3-1315U (1.20GHz), TDP 15W

BIOS

256Mb SPI Flash ROM

Insyde BIOS

Memory

Dual Channel DDR5

Two 262 Pin SO-DIMM Socket Supporting DDR5 5600MHz
Memory

Memory Expandable up to 64GB

Compatible with 8GB,16GB or 32GB Modules

(The real memory operating frequency depends on the

processor and memory modules.

)

LCD Options

LCD, 15.6" (39.62cm), 16:9, FHD (1920x1080)

Storage

Two M.2 2280 PCIe Gen4 x4 SSDs supporting RAID level 0/

1

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

Intel® Iris Xe Graphics (i7-1355U / i5-1335U)

Intel Xe Micro Architecture

Variable Rate Shading

Microsoft DirectX® 12 Compatible

Intel® DLBoost: DP4A

Intel UHD Graphics

HDR Support

Rec. 2020

Microsoft DirectX® 12 Compatible

(i3-1315U)

Pointing Device

Built-in Touchpad (with Microsoft PTP Multi Gesture & Scroll­ing Functionality)

Or

(Factory Option) Built-in Secure Pad (with Microsoft PTP
Multi Gesture & Scrolling Functionality)

Keyboard

Full-size Keyboard

Or

(Factory Option) Full-size White-LED Keyboard

Audio

High Definition Audio Compliant Interface

Sound Blaster Studio

Built-In Array Microphone

Two Speakers

M.2 Slots

Slot 1 for WLAN and Bluetooth Combo Module

Slot 2 for PCIe Gen4 x4 SSD

Slot 3 for SATA or PCIe Gen3 x4 SSD

1 - 2 Specifications

Card Reader

MicroSD Card Reader