HP ProDesk 405 G4 Small Form Factor PC User guide

Maintenance and Service Guide

HP ProDesk 405 G4 Small Form Factor (SFF)

Business PC

Company, L.P.

AMD and Ryzen are trademarks of Advanced

Micro Devices, Inc. Bluetooth is a trademark

owned by its proprietor and used by HP Inc.

under license. Intel, Celeron, and Pentium are

trademarks of Intel Corporation in the U.S. and

other countries. Microsoft and Windows are

trademarks of the Microsoft group of

companies. DisplayPort and the DisplayPort logo

are trademarks owned by the Video Electronics

Standards Association (VESA®) in the United

States and other countries.

The information contained herein is subject to

change without notice. The only warranties for

HP products and services are set forth in

the express warranty statements accompanying

such products and services. Nothing herein

should be construed as constituting an

additional warranty. HP shall not be liable for

technical or editorial errors or omissions

contained herein.

Second Edition: December 2019

First Edition: June 2018

Document Part Number: L23140-002

Product notice

This guide describes features that are common

to most models. Some features may not be

available on your product. To access the latest

user guide, go to http://www.hp.com/support,

and follow the instructions to nd your product.

Then select User Guides.

Software terms

By installing, copying, downloading, or otherwise

using any software product preinstalled on this

computer, you agree to be bound by the terms

of the HP End User License Agreement (EULA). If

you do not accept these license terms, your sole

remedy is to return the entire unused product

(hardware and software) within 14 days for a full

refund subject to the refund policy of your seller.

For any further information or to request a full

refund of the price of the computer, please

contact your seller.

Safety warning notice

WARNING! To reduce the possibility of heat-related injuries or of overheating the device, do not place

the device directly on your lap or obstruct the device air vents. Use the device only on a hard, at surface. Do not

allow another hard surface, such as an adjoining optional printer, or a soft surface, such as pillows or rugs or

clothing, to block airow. Also, do not allow the AC adapter to contact the skin or a soft surface, such as pillows

or rugs or clothing, during operation. The device and the AC adapter comply with the user-accessible surface

temperature limits dened by applicable standards.

iii

iv Safety warning notice

Table of contents

1 Product features ....................................................................................................................................................................................... 1

Standard conguration features ............................................................................................................................................ 1

Front panel components ......................................................................................................................................................... 2

Rear panel components .......................................................................................................................................................... 3

Serial number location ............................................................................................................................................................. 3

2 Illustrated parts catalog ........................................................................................................................................................................... 4

Computer major components ................................................................................................................................................ 4

Cables and adapters ................................................................................................................................................................ 6

Drives .......................................................................................................................................................................................... 6

Mouse and keyboards .............................................................................................................................................................. 7

3 Routine care, SATA drive guidelines, and disassembly preparation ................................................................................................. 9

Electrostatic discharge information ...................................................................................................................................... 9

Generating static .................................................................................................................................................. 9

Preventing electrostatic damage to equipment ........................................................................................... 10

Personal grounding methods and equipment .............................................................................................. 10

Grounding the work area .................................................................................................................................. 10

Recommended materials and equipment ..................................................................................................... 11

Operating guidelines .............................................................................................................................................................. 11

Routine care ............................................................................................................................................................................ 12

General cleaning safety precautions .............................................................................................................. 12

Cleaning the computer case ............................................................................................................................ 12

Cleaning the keyboard ...................................................................................................................................... 12

Cleaning the monitor ........................................................................................................................................ 13

Cleaning the mouse .......................................................................................................................................... 13

Service considerations .......................................................................................................................................................... 13

Power supply fan ............................................................................................................................................... 13

Tools and software requirements .................................................................................................................. 13

Screws ................................................................................................................................................................. 14

Cables and connectors ..................................................................................................................................... 14

Hard Drives ......................................................................................................................................................... 14

Lithium coin cell battery ................................................................................................................................... 14

SATA hard drives ..................................................................................................................................................................... 15

SATA hard drive cables .......................................................................................................................................................... 15

SATA data cable .................................................................................................................................................. 15

v

SMART ATA drives ................................................................................................................................................................... 15

Cable management ............................................................................................................................................................... 16

4 Removal and replacement procedures .............................................................................................................................................. 17

Preparation for disassembly ................................................................................................................................................ 17

Access panel ........................................................................................................................................................................... 18

Front bezel .............................................................................................................................................................................. 19

Slim optical drive bezel blank .............................................................................................................................................. 20

Front bezel dust lter ............................................................................................................................................................ 21

Drive cage ................................................................................................................................................................................ 22

System board connections ................................................................................................................................................... 23

Memory .................................................................................................................................................................................... 24

Populating DIMM sockets ................................................................................................................................. 24

Removing and installing DIMMs ...................................................................................................................... 25

Expansion card ....................................................................................................................................................................... 27

Drives ....................................................................................................................................................................................... 31

Drive positions ................................................................................................................................................... 31

Installing and removing drives ........................................................................................................................ 31

Removing a 9.5 mm slim optical drive ...................................................................................... 32

Installing a 9.5 mm slim optical drive ........................................................................................ 33

Removing a 3.5 inch hard drive .................................................................................................. 34

Installing a 3.5 inch hard drive .................................................................................................... 35

Removing and installing an M.2 SSD storage card .................................................................. 38

Fan ............................................................................................................................................................................................ 40

Heat sink .................................................................................................................................................................................. 41

Processor ................................................................................................................................................................................. 42

WLAN module ......................................................................................................................................................................... 43

Power supply .......................................................................................................................................................................... 44

Option port board ................................................................................................................................................................... 46

Hood sensor ............................................................................................................................................................................ 47

Card reader .............................................................................................................................................................................. 48

Speaker .................................................................................................................................................................................... 49

Antennas ................................................................................................................................................................................. 50

System board .......................................................................................................................................................................... 53

System board callouts ...................................................................................................................................... 55

Changing from desktop to tower orientation .................................................................................................................... 56

5 Computer Setup (F10) Utility ................................................................................................................................................................ 57

Computer Setup (F10) Utilities ............................................................................................................................................ 57

Using Computer Setup (F10) Utilities ............................................................................................................. 57

Computer Setup–Main ...................................................................................................................................... 59

vi

Computer Setup—Security .............................................................................................................................. 61

Computer Setup—Advanced ........................................................................................................................... 64

Computer Setup—UEFI Drivers ...................................................................................................................... 69

Recovering the Conguration Settings ............................................................................................................................... 69

6 Troubleshooting without diagnostics ................................................................................................................................................. 70

Safety and comfort ................................................................................................................................................................ 70

Before you call for technical support .................................................................................................................................. 70

Helpful hints ............................................................................................................................................................................ 71

Solving general problems ..................................................................................................................................................... 72

Solving power problems ....................................................................................................................................................... 76

Solving hard drive problems ................................................................................................................................................ 77

Solving media card reader problems .................................................................................................................................. 79

Solving display problems ...................................................................................................................................................... 80

Solving audio problems ........................................................................................................................................................ 84

Solving printer problems ...................................................................................................................................................... 86

Solving keyboard and mouse problems ............................................................................................................................. 87

Solving hardware installation problems ............................................................................................................................. 88

Solving network problems .................................................................................................................................................... 89

Solving memory problems ................................................................................................................................................... 91

Solving CD-ROM and DVD problems ................................................................................................................................... 93

Solving USB ash drive problems ........................................................................................................................................ 95

Solving front panel component problems ......................................................................................................................... 96

Solving Internet access problems ....................................................................................................................................... 96

Solving software problems .................................................................................................................................................. 97

7 POST error messages and diagnostic front panel LEDs and audible codes ................................................................................. 98

POST numeric codes and text messages ........................................................................................................................... 98

Interpreting system validation diagnostic front panel LEDs and audible codes ....................................................... 103

8 Password security and resetting CMOS ............................................................................................................................................ 105

Resetting the password jumper ........................................................................................................................................ 105

Clearing and resetting the BIOS ........................................................................................................................................ 107

9 Using HP PC Hardware Diagnostics ................................................................................................................................................... 108

Using HP PC Hardware Diagnostics Windows (select products only) ......................................................................... 108

Downloading HP PC Hardware Diagnostics Windows ............................................................................... 108

Downloading the latest HP PC Hardware Diagnostics Windows version .......................... 108

Downloading HP Hardware Diagnostics Windows by product name or number

(select products only) ................................................................................................................ 109

vii

Installing HP PC Hardware Diagnostics Windows ...................................................................................... 109

Using HP PC Hardware Diagnostics UEFI ......................................................................................................................... 109

Starting HP PC Hardware Diagnostics UEFI ................................................................................................ 109

Downloading HP PC Hardware Diagnostics UEFI to a USB ash drive .................................................... 110

Downloading the latest HP PC Hardware Diagnostics UEFI version ................................... 110

Downloading HP PC Hardware Diagnostics UEFI by product name or number (select

products only) ............................................................................................................................. 110

Using Remote HP PC Hardware Diagnostics UEFI settings (select products only) ................................................... 110

Downloading Remote HP PC Hardware Diagnostics UEFI ........................................................................ 111

Downloading the latest Remote HP PC Hardware Diagnostics UEFI version ................... 111

Downloading Remote HP PC Hardware Diagnostics UEFI by product name or number 111

Customizing Remote HP PC Hardware Diagnostics UEFI settings .......................................................... 111

10 Backing up, restoring, and recovering ............................................................................................................................................ 112

Using Windows tools ........................................................................................................................................................... 112

Creating HP Recovery media (select products only) ...................................................................................................... 112

Using HP Recovery Manager to create recovery media ............................................................................ 113

Before you begin ........................................................................................................................ 113

Creating the recovery media ..................................................................................................... 113

Using the HP Cloud Recovery Download Tool to create recovery media ............................................... 113

Restoring and recovery ....................................................................................................................................................... 114

Restoring, resetting, and refreshing using Windows tools ...................................................................... 114

Restoring using HP Recovery Manager and the HP Recovery partition ................................................. 114

Recovering using HP Recovery Manager ..................................................................................................... 114

Recovering using the HP Recovery partition (select products only) ....................................................... 115

Recovering using HP Recovery media ......................................................................................................... 115

Changing the computer boot order ............................................................................................................. 116

Removing the HP Recovery partition (select products only) ................................................................... 116

Appendix A Battery replacement .......................................................................................................................................................... 117

Appendix B Power cord set requirements ........................................................................................................................................... 121

General requirements ......................................................................................................................................................... 121

Japanese power cord requirements ................................................................................................................................. 121

Country-specic requirements .......................................................................................................................................... 122

Appendix C Statement of memory volatility ....................................................................................................................................... 123

Nonvolatile memory usage ................................................................................................................................................ 125

Questions and answers ...................................................................................................................................................... 127

Using HP Sure Start (select models only) ........................................................................................................................ 128

viii

Appendix D Specications ...................................................................................................................................................................... 129

Index ........................................................................................................................................................................................................... 130

ix

x

1 Product features

Standard conguration features

Features may vary depending on the model. For support assistance and to learn more about the hardware and

software installed on your computer model, run the HP Support Assistant utility.

NOTE: This computer model can be used in a tower orientation or a desktop orientation.

Standard conguration features 1

Front panel components

Drive conguration may vary by model. Some models have a bezel blank covering the slim optical drive bay.

Front panel components

1 Slim optical drive (optional) 6 USB 2.0 port (fast charging port)

2 SD card reader (optional) 7 Audio-out (headphone)/Audio-in (microphone)

combo jack

3 USB Type-C charging port 8 Hard drive activity light

4 USB 3.1 Gen 1 ports (2) (5 Gbit/s data speed) 9 Power button

5 USB 2.0 port

NOTE: The audio-out (headphone)/audio-in (microphone) combo jack supports headphones, line output devices,

microphones, line input devices, or CTIA-style headsets.

NOTE: The USB port with HP Sleep and Charge provides current to charge a device such as a smart phone. The charging

current is available whenever the power cord is connected to the system, even when the system is o.

NOTE: The light on the power button is normally white when the power is on. If it is ashing red, there is a problem with

the computer, and it is displaying a diagnostic code. See Interpreting system validation diagnostic front panel LEDs and

audible codes on page 103 to interpret the code.

2 Chapter 1 Product features

Rear panel components

1 Audio-in jack 6 Optional port

2 Serial port (optional) 7 USB 2.0 ports with wake from S4 (2)

3 RJ-45 (network) jack 8 USB 3.1 Gen 1 (2) (5 Gbit/s data speed)

4 Audio-out jack for powered audio devices 9 USB 2.0 (2)

5 DisplayPort™ monitor connectors (2) 10 Power cord connector

NOTE: Your model may have additional optional ports available from HP.

When a graphics card is installed in one of the system board slots, the video connectors on the graphics card and/or the integrated

graphics on the system board may be used. The specic graphics card installed and software conguration will determine

the behavior.

The system board graphics can be disabled by changing settings in BIOS F10 Setup.

Serial number location

Each computer has a unique serial number and a product ID number that are located on the exterior of

the computer. Keep these numbers available for use when contacting customer service for assistance.

Rear panel components 3

2 Illustrated parts catalog

Computer major components

Item Description

(1) System board for use with Ryzen™ PRO processors (includes replacement thermal material)

(2) Front bezel

(3) Dust lter

(4) Access panel

(5) Power supply (180 W)

(6) Heat sink (includes replacement thermal material)

(7) Fan

(8) Processor

AMD Ryzen 5 PRO 2400G

AMD Ryzen 3 PRO 2200G

(9) Memory modules (UDIMM, PC4-2666, NECC)

16 GB

8 GB

4 Chapter 2 Illustrated parts catalog

Item Description

4 GB

(10) Speaker

(11) Hood sensor

(12) WLAN modules

Intel® 3168 802.11 AC 1x1 with Bluetooth® 4.0 (Brazil)

Intel 7265 802.11AC 2x2 with Bluetooth M.2 Combo Card non-vPro (Brazil)

Intel 9260 802.11 AC 2x2 +Bluetooth 5 PCIe non-vPro

Realtek 802.11 AC 1x1 with Bluetooth 4.2 LE M.2 PCIe

Realtek 802.11 AC 2x2 with Bluetooth 4.2 LE M.2 PCIe

(13) AMD™ Radeon R7 430 2 GB FH PCIe x16 G5 graphics card (select models only)

(14) Serial+PS/2 port (select models only)

(15) Antenna cover

(16) Bezel blank for optical drive slot

(17) Optical drive latch

* Option boards:

HDMI option board

DisplayPort option board

VGA option board

USB Type-C option board

* Parallel port, PCIe card

* 2nd serial port

* Card reader assembly

* Stand

* Power cord

* Optical drive bezel

* HP USB Type-C to USB Type-A hub

* Fan duct

Computer major components 5

Cables and adapters

Item Description

(1) SATA drive power cable

(2) SATA data cable, 5.7 inch, 2 straight ends

SATA data cable, 7.5 inch, 2 straight ends

* DVI cable, 1.8 m

* Internal wireless antennas

* Antenna cover

* Adapters

DisplayPort to HDMI 2.0

DisplayPort to VGA

DisplayPort to DVI

USB to serial

USB Type-C to USB 3.0

USB 3.1 Type-C to DisplayPort

Drives

Description

Hard drives (3.5 inch)

2 TB, 7200 rpm

1 TB, 7200 rpm

500 GB, 7200 rpm hard drive, self-encrypting (SED), Opal 2, 7 mm

500 GB, 7200 rpm

Solid-state drives:

6 Chapter 2 Illustrated parts catalog

Description

1 TB, M.2 2280, NVMe, TLC, SS

512 GB, M2 2280, PCIe, NVMe, TLC, SS

512 GB, M.2 2280, PCIe, NVMe, value

512 GB, M.2 2280, PCIe 3×4, TLC, SED

512 GB, SATA3, TLC

512 GB, SATA3 TLC, SED Opal2

256 GB, M2 2280, PCIe, NVMe, TLC, SS

256 GB, M.2 2280, PCIe, NVMe, value

256 GB, M.2 2280, PCIe 3×4, TLC, SED

256 GB, SATA3, TLC

256 GB, SATA3 TLC, SED Opal2

128 GB, M2 2280, PCIe, NVMe, TLC

Optical drives, 9.5 mm

BD Blu-ray writer drive

DVD±RW drive

DVD-ROM drive

Mouse and keyboards

Description

Mouse

USB, healthcare, wired

USB, antimicrobial

USB/PS2 Washable

USB, Hardened

USB, optical

PS/2, optical

USB, laser

HP USB Premium

USB/PS2 washable

Keyboards

Washable, USB PS2

USB, unbranded

USB

Mouse and keyboards 7

Description

USB, essential

Conferencing

USB, slim

Wireless, with mouse

USB, slim, smartcard

Antimicrobial

USB, slim, gray

USB, collaboration

Wireless, collaboration

USB, wired, healthcare

Premium, wireless

USB, Katydid

8 Chapter 2 Illustrated parts catalog

3 Routine care, SATA drive guidelines, and

disassembly preparation

This chapter provides general service information for the computer. Adherence to the procedures and

precautions described in this chapter is essential for proper service.

IMPORTANT: When the computer is plugged into an AC power source, voltage is always applied to the system

board. You must disconnect the power cord from the power source before opening the computer to prevent

system board or component damage.

Electrostatic discharge information

A sudden discharge of static electricity from your nger or other conductor can destroy static-sensitive devices

or microcircuitry. Often the spark is neither felt nor heard, but damage occurs. An electronic device exposed to

electrostatic discharge (ESD) may not appear to be aected at all and can work perfectly throughout a normal

cycle. The device may function normally for a while, but it has been degraded in the internal layers, reducing its

life expectancy.

Networks built into many integrated circuits provide some protection, but in many cases, the discharge contains

enough power to alter device parameters or melt silicon junctions.

Generating static

The following table shows that:

● Dierent activities generate dierent amounts of static electricity.

● Static electricity increases as humidity decreases.

Relative Humidity

Event 55% 40% 10%

Walking across carpet

Walking across vinyl oor

Motions of bench worker

Removing DIPs from plastic tube

7,500 V

3,000 V

400 V

15,000 V

5,000 V

800 V

700 V

35,000 V

12,000 V

6,000 V

2,000 V

Removing DIPs from vinyl tray

Removing DIPs from polystyrene foam

Removing bubble pack from PCB

Packing PCBs in foam-lined box

2,000 V

3,500 V

7,000 V

5,000 V

4,000 V

5,000 V

20,000 V

11,000 V

11,500 V

14,500 V

26,500 V

21,000 V

These are then multi-packaged inside plastic tubes, trays, or polystyrene foam.

NOTE: 700 volts can degrade a product.

Electrostatic discharge information 9

Preventing electrostatic damage to equipment

Many electronic components are sensitive to ESD. Circuitry design and structure determine the degree of

sensitivity. The following packaging and grounding precautions are necessary to prevent damage to electric

components and accessories.

● To avoid hand contact, transport products in static-safe containers such as tubes, bags, or boxes.

● Protect all electrostatic parts and assemblies with conductive or approved containers or packaging.

● Keep electrostatic sensitive parts in their containers until they arrive at static-free stations.

● Place items on a grounded surface before removing them from their container.

● Always be properly grounded when touching a sensitive component or assembly.

● Avoid contact with pins, leads, or circuitry.

● Place reusable electrostatic-sensitive parts from assemblies in protective packaging or conductive foam.

Personal grounding methods and equipment

Use the following equipment to prevent static electricity damage to equipment:

● Wrist straps are exible straps with a maximum of 1 MΩ ± 10% resistance in the ground cords. To provide

proper ground, a strap must be worn snug against bare skin. The ground cord must be connected and t

snugly into the banana plug connector on the grounding mat or workstation.

● Heel straps, toe straps, boot straps can be used at standing workstations and are compatible with most

types of shoes or boots. On conductive oors or dissipative oor mats, use them on both feet with a

maximum of 1 MΩ ± 10% resistance between the operator and ground.

Static Shielding Protection Levels

Method Voltage

Antistatic plastic

Carbon-loaded plastic

Metallized laminate

1,500

7,500

15,000

Grounding the work area

To prevent static damage at the work area, use the following precautions:

● Cover the work surface with approved static-dissipative material. Provide a wrist strap connected to

the work surface and properly grounded tools and equipment.

● Use static-dissipative mats, foot straps, or air ionizers to give added protection.

● Handle electrostatic sensitive components, parts, and assemblies by the case or PCB laminate. Handle

them only at static-free work areas.

● Turn o power and input signals before inserting and removing connectors or test equipment.

● Use xtures made of static-safe materials when xtures must directly contact dissipative surfaces.

● Keep work area free of nonconductive materials such as ordinary plastic assembly aids and polystyrene

foam.

● Use eld service tools, such as cutters, screwdrivers, and vacuums, that are conductive.

10 Chapter 3 Routine care, SATA drive guidelines, and disassembly preparation

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