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Lenovo 90DD User Manual

Lenovo 90DD
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ideacentre
Y700/900 Series
Quick Start Guide
4
Replacing a memory module
Replacing or upgrading hardware
Safety information for replacing CRUs
Do not open your computer or attempt any repairs before reading the “Important
safety information” in the Safety, Warranty, Environment, Recycling Information
Guide and Important Product Information Guide that was included with your
computer.
If you no longer have this copy of the Safety, Warranty, Environment, Recycling
Information Guide and Important Product Information Guide, you can obtain
one online from the website at http://www.lenovo.com/UserManuals.
Pre-disassembly instructions
Before proceeding with the disassembly procedure, make sure that you do the
following:
1. Turn off the power to the system and all peripherals.
2. Unplug all power and signal cables from the computer.
3. Place the system on a flat, stable surface.
CRUs for your computer include:
• keyboard • optical drive
• mouse • memory module
• power cord • hard disk drive
The parts listed below are optional CRUs for experienced users:
• graphics card • power supply
• fans • Wi-Fi card
• heat sink • CMOS battery
Instructions for replacing these parts can be found in the Hardware
Maintenance Manual from the Lenovo Support Web Site. To obtain a copy of
the Hardware Maintenance Manual, go to: www.lenovo.com/UserManuals.
This part contains instructions for cleaning or replacing the following parts:
Bottom dust screen (Follow steps:
1
)
Memory module (Follow steps:
2
4
)
Hard disk drive (Follow steps:
2
5
)
Optical drive (Follow steps:
2
3
6
)
Front dust screen (Follow steps:
2
3
7
)
Replacing or upgrading hardware
2
Removing the computer cover
6
Replacing an optical drive
1 2
3 4
Replacing or upgrading hardware Replacing or upgrading hardware Replacing or upgrading hardware
1
Cleaning bottom dust screen
5
Replacing a hard disk drive
3
Removing the front bezel
7
Cleaning front dust screen
Service and Support information
The following information describes the technical support that is available for
your product, during the warranty period or throughout the life of your product.
Refer to the Lenovo Limited Warranty for a full explanation of Lenovo warranty
terms. See “Lenovo Limited Warranty notice” later in this document for details
on accessing the full warranty. If you purchased Lenovo services, refer to the
following terms and conditions for detailed information:
For Lenovo Warranty Service Upgrades or Extensions,
go to: http://support.lenovo.com/lwsu
For Lenovo Accidental Damage Protection Services,
go to: http://support.lenovo.com/ladps
Online technical support is available during the lifetime of a product at:
http://www.lenovo.com/support
Accessing other manuals
An Important Product Information Guide has been preloaded onto your
computer. To access this guide, do the following:
1. Open the Start menu and then click or tap Lenovo Companion. If Lenovo
Companion is not displayed on the Start menu, click or tap All apps to
display all programs, and then click or tap Lenovo Companion.
2. Click or tap Support
User Guide.
Models without preinstalled operating systems and Virtual Desktop
Infrastructure (VDI) clients:
Go to the Lenovo Support Web site to access your manuals. See “Downloading
manuals” for additional information.
Downloading manuals
The latest electronic publications for your computer are available from the
Lenovo Support Web site. To download the publications,
go to: www.lenovo.com/UserManuals.
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Lenovo 90DD Specifications

General IconGeneral
BrandLenovo
Model90DD
CategoryDesktop
LanguageEnglish

Summary

Accessing Manuals and Support

Accessing Other Manuals

Information on how to access other manuals and documentation for the computer.

Service and Support Information

Details regarding service options, warranty, and support contacts for the product.

Replacing or Upgrading Hardware

Removing Computer Cover and Bezel

Instructions for removing the computer cover and front bezel for internal access.

Replacing or Upgrading Components

Procedures for replacing or upgrading key hardware components like drives and memory.

Cleaning Dust Screens

Steps to clean the front and bottom dust screens to maintain system airflow.

Initial Setup and Connections

Unpacking and Voltage Selection

Guidance on unpacking the system and selecting the correct voltage.

Connecting Peripherals

Instructions for connecting essential peripherals like keyboard, mouse, and display.

Powering On the Computer

Steps to connect power cables and turn on the computer.

Connectivity and System Information

Connecting to the Internet

Information on establishing an internet connection using the Ethernet port.

Windows Help System

Guide on how to access and use the Windows help system for assistance.

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