HP ProDesk 400 G2 Small Form Factor User Manual

Installing a slim optical drive
1. Prepare the computer for disassembly (Preparation for disassembly on page 19).
2. If the computer is on a stand, remove the computer from the stand.
3. Remove the access panel (
Access panel on page 20).
4. Remove the front bezel (
Front bezel on page 21) if you are installing a drive in a bay covered by a bezel
blank, then remove the bezel blank. See
Bezel blanks on page 23 for more information.
5. Before the new optical drive can be used, the release latch must be attached.
a. Peel the backing off the adhesive on the release latch.
b. Without allowing the release latch to touch the optical drive, carefully align the holes on the
release latch with the pins on the side of the optical drive. Make sure the release latch is oriented
properly.
c. Insert the pin at the front of the optical drive into the hole at the end of the release latch, and
press firmly.
d. Insert the second pin, and press the entire release latch firmly to fasten the latch securely to the
optical drive.
Drives 39

HP ProDesk 400 G2 Small Form Factor Specifications

General

Brand	HP
Model	ProDesk 400 G2 Small Form Factor
Category	Desktop
Language	English

Summary

Product Features

Front Panel Components

Rear Panel Components

Routine Care and Disassembly Preparation

Electrostatic Discharge Information

Explains electrostatic discharge (ESD) risks and essential precautions for handling components.

Preventing Electrostatic Damage

Details packaging and grounding precautions to prevent damage to sensitive electronic parts.

Removal and Replacement Procedures

Preparation for Disassembly

Outlines the essential steps to take before beginning any disassembly or removal task.

Access Panel Removal

Front Bezel Removal

Power Supply

Power Supply Replacement

Fan Sink Removal

Processor

Processor Removal

System Board

System Board Replacement

Computer Setup (F10) Utility

Computer Setup Utilities Overview

Accessing Computer Setup

Troubleshooting Without Diagnostics

Before Calling Technical Support

Steps to take to isolate problems and gather information before contacting support.

Solving General Problems

Common issues like system lockups, incorrect date/time, and cursor problems.

Solving Power Problems

Addresses issues related to power supply, intermittent shutdowns, and startup failures.

Solving Hard Drive Problems

Troubleshooting steps for hard disk errors, slow performance, and drive detection issues.

Solving Media Card Reader Problems

Solutions for issues with media card readers, including write protection and recognition.

Solving Display Problems

Troubleshooting steps for blank screens, incorrect resolutions, and video anomalies.

Solving Audio Problems

Addresses issues with sound output, including no sound, muffled sound, or volume problems.

Solving Printer Problems

Troubleshooting steps for printers that will not print or print garbled information.

Solving Keyboard and Mouse Problems

Solutions for issues with keyboard commands, mouse movement, and general input device problems.

Solving Hardware Installation Problems

Addresses issues when new hardware is not recognized or causes configuration conflicts.

Solving Network Problems

Troubleshooting steps for network connectivity, driver detection, and Wake-on-LAN issues.

Solving USB Flash Drive Problems

Solutions for issues with USB flash drives not being recognized or not booting.

Solving Internet Access Problems

Troubleshooting steps for inability to connect to the internet or browser issues.

Solving Software Problems

Addresses issues related to application installation, configuration, and operating system startup.

POST Error Messages

POST Numeric Codes and Text Messages

Lists and explains POST error codes, messages, and their recommended actions.

Password Security and CMOS Reset

Resetting the Password Jumper

Instructions for clearing BIOS passwords by moving a system board jumper.

Clearing and Resetting the CMOS

Steps to reset the computer's CMOS settings to factory defaults.

HP PC Hardware Diagnostics

Accessing and Running Diagnostics

Guide on how to access and execute the HP PC Hardware Diagnostics tools.

System Backup and Recovery

Backing Up, Restoring, and Recovering in Windows 8.1/8

Procedures for creating recovery media and restoring systems in Windows 8/8.1.

Using Reset When System is Not Responding

Steps to perform a system reset when Windows is unresponsive.

Recovery Using Windows USB Flash Drive

Recovery Using Windows OS Media

Backup, Restore, and Recovery in Windows 7

Creating Recovery Media

System Recovery Overview

Battery Replacement

Battery Replacement Procedure