Lenovo ThinkCentre E73

Other manuals for Lenovo ThinkCentre E73

Hardware Maintenance Manual190 pages

Questions and Answers

H
hartjohnathanAug 13, 2025
What to do if Lenovo ThinkCentre E73 Desktop does not start?
- G
  George Bean PhDAug 13, 2025
  If your Lenovo Desktop doesn't start, check the following: Ensure the power cord is correctly connected to both the rear of the computer and a working electrical outlet. If there's a secondary power switch at the rear, make sure it's on. Verify that the power indicator on the front of the computer is lit. Also, confirm that the computer voltage matches the voltage available at your electrical outlet.
D
Donald ReynoldsAug 16, 2025
Why Lenovo ThinkCentre E73 Desktop keyboard does not work?
- J
  Joshua RoseAug 16, 2025
  If your Lenovo Desktop keyboard isn't working, check that the computer is turned on. Make sure the keyboard is securely connected to a USB connector on the computer. Also, ensure that no keys are stuck.
S
Stephen DavisAug 20, 2025
How to fix Lenovo Desktop that does not start?
- L
  ldiazAug 20, 2025
  If your Lenovo Desktop doesn't start when you press the power switch, check the following: * Ensure the power cord is properly connected to both the rear of the computer and a working electrical outlet. * If there's a secondary power switch at the rear, make sure it's turned on. * Confirm the power indicator on the front of the computer is lit. * Verify the computer's voltage matches the electrical outlet's voltage for your region.
E
ecurtisAug 25, 2025
How to troubleshoot Lenovo ThinkCentre E73 keyboard that is not working?
- H
  Hannah BrooksAug 25, 2025
  If the keyboard on your Lenovo Desktop isn't working, verify the following: * The computer is turned on. * The keyboard is securely connected to a USB connector on the computer. * No keys are stuck.
J
Jason GomezAug 28, 2025
Why Lenovo Desktop monitor screen is blank?
- M
  Margaret MillerAug 28, 2025
  If your Lenovo Desktop monitor screen is blank, verify that the monitor signal cable is correctly connected to both the monitor and the appropriate connector on the computer. Ensure the monitor's power cord is properly connected to the monitor and a working electrical outlet. Check that the monitor is turned on and the brightness and contrast controls are correctly set. Also, confirm that the computer voltage matches the voltage available at the electrical outlet. If your computer has two monitor connectors, be sure to use the connector on the graphics card.
A
Ashley BryanAug 31, 2025
Why is my Lenovo Desktop monitor screen blank?
- N
  Nina DavisAug 31, 2025
  If the monitor screen is blank when using your Lenovo Desktop, check these items: * Make sure the monitor signal cable is correctly connected to both the monitor and the appropriate connector on the computer. * Ensure the monitor power cord is properly connected to the monitor and a working electrical outlet. * Verify the monitor is turned on and the brightness and contrast are correctly set. * Confirm the computer voltage matches the outlet voltage for your region. * If your computer has two monitor connectors, use the one on the graphics card.
W
wheeleramySep 4, 2025
Why Lenovo ThinkCentre E73 Desktop mouse does not work?
- S
  Samuel WalkerSep 4, 2025
  If your Lenovo Desktop mouse isn't working, check that the computer is turned on. Ensure the mouse is securely connected to a USB connector on the computer. Also, make sure the mouse is clean.
N
Nicholas HubbardSep 7, 2025
What to do if Lenovo Desktop mouse does not work?
- K
  Kyle FordSep 7, 2025
  If your Lenovo Desktop mouse isn't working, check these things: * Make sure the computer is turned on. * Ensure the mouse is securely connected to a USB connector on the computer. * Verify the mouse is clean.

Summary

Important Safety Information

Service and Upgrades

Static Electricity Prevention

Heat and Product Ventilation

Cleaning and Maintenance

Product Overview

Features

Internal Drives

Input;Output (I;O) Features

Using Your Computer

Security

Security Features

Overview of the computer's built-in security features.

Installing or Replacing Hardware

Handling Static-Sensitive Devices

Precautions for handling components sensitive to static electricity.

Removing the Computer Cover

Step-by-step guide to removing the computer cover.

Replacing the Hard Disk Drive

Step-by-step guide to replacing the hard disk drive.

Troubleshooting and Diagnostics

Basic Troubleshooting

Table of common symptoms and actions for troubleshooting.

Audio Problems

Keyboard, Mouse, or Pointing Device Problems

Diagnostic Programs

Information on using preinstalled diagnostic tools.

Using the Setup Utility Program

Starting the Setup Utility Program

Steps to start the BIOS Setup Utility program.

Using Passwords

Information on setting and using BIOS and Windows passwords.

Erasing Lost Passwords (Clearing CMOS)

Procedure to clear CMOS and reset BIOS passwords.

Updating System Programs

Updating the BIOS

Recovering from a POST;BIOS Update Failure

Preventing Problems

Getting Information, Help, and Service

Calling for Service

Lenovo ThinkCentre E73 Specifications

General

Tcase	72 °C
Bus type	DMI2
Stepping	C0
Tjunction	- °C
FSB Parity	No
Processor cache	3 MB
Processor cores	2
Processor model	i3-4170
System bus rate	5 GT/s
Processor family	Intel® Core™ i3
Processor series	Intel Core i3-4100 Desktop series
Processor socket	LGA 1150 (Socket H3)
Processor threads	4
Processor codename	Haswell
Number of QPI links	0
Processor frequency	3.7 GHz
Processor cache type	L3
Configurable TDP-down	- W
Processor lithography	22 nm
Processor manufacturer	Intel
Processor front side bus	- MHz
PCI Express slots version	3.0
Processor operating modes	32-bit, 64-bit
ECC supported by processor	Yes
PCI Express configurations	1x16, 2x8, 1x8+2x4
Thermal Design Power (TDP)	54 W
Number of processors installed	1
Maximum number of PCI Express lanes	16
Memory types supported by processor	DDR3-SDRAM, DDR3L-SDRAM
Memory voltage supported by processor	1.5 V
Memory clock speeds supported by processor	1333, 1600 MHz
Memory bandwidth supported by processor (max)	25.6 GB/s
Maximum internal memory supported by processor	32 GB
Memory slots	2x DIMM
Internal memory	4 GB
Memory channels	Dual-channel
Memory clock speed	1600 MHz
Internal memory type	DDR3-SDRAM
Maximum internal memory	16 GB
Memory layout (slots x size)	1 x 4 GB
HDD size	3.5 \
HDD speed	7200 RPM
HDD interface	SATA III
Storage media	HDD
Optical drive type	DVD±RW
Total storage capacity	500 GB
On-board graphics card ID	41
Discrete graphics card model	Not available
On-board graphics card model	Intel® HD Graphics 4400
On-board graphics card family	Intel® HD Graphics
Maximum on-board graphics card memory	1.74 GB
On-board graphics card OpenGL version	4.3
On-board graphics card base frequency	350 MHz
On-board graphics card DirectX version	11.1
On-board graphics card dynamic frequency (max)	1150 MHz
Number of displays supported (on-board graphics)	3
Recovery operating system	Windows 10 Pro
Operating system installed	Windows 7 Professional
Operating system architecture	64-bit
Cabling technology	10/100/1000Base-T(X)
Ethernet LAN data rates	10, 100, 1000 Mbit/s
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Chassis type	Mini Tower
Product color	Black
Placement supported	Vertical
Product type	PC
Motherboard chipset	Intel® H81
Scalability	1S
Processor code	SR1PL
Processor ARK ID	77490
Processor package size	37.5 x 37.5 mm
Supported instruction sets	AVX 2.0, SSE4.1, SSE4.2
Thermal solution specification	PCG 2013C
Intel® Smart Response Technology	-
Intel Secure Key Technology version	1.00
Intel Stable Image Platform Program (SIPP) version	0.00
Power supply	180 W
Power supply input voltage	100 - 240 V
Power supply input frequency	50 - 60 Hz
Sustainability certificates	RoHS, EPEAT Gold, ENERGY STAR