Compaq Pro 6305 Hardware Reference Manual

Hardware Reference Guide

HP Compaq Pro 6305 Microtower Business PC HP Compaq Pro 6305 Small Form Factor Business PC

Microsoft and Windows are either trademarks or registered trademarks of Microsoft Corporation in the United States and/or other countries.

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.

This document contains proprietary information that is protected by copyright. No part of this document may be photocopied, reproduced, or translated to another language without the prior written consent of Hewlett-Packard Company.

Hardware Reference Guide

HP Compaq Pro 6305 Microtower Business PC

HP Compaq Pro 6305 Small Form Factor Business PC

First Edition (August 2012)

Document part number: 700967–001

About This Book

This guide provides basic information for upgrading HP Compaq Business PCs.

WARNING! Text set off in this manner indicates that failure to follow directions could result in bodily

harm or loss of life.

CAUTION: Text set off in this manner indicates that failure to follow directions could result in

damage to equipment or loss of information.

NOTE: Text set off in this manner provides important supplemental information.

iii

iv About This Book

Table of contents

1 Product Features ............................................................................................................................................ 1

Standard Configuration Features ......................................................................................................... 1

Microtower (MT) Front Panel Components .......................................................................................... 2

Small Form Factor (SFF) Front Panel Components ............................................................................. 3

Microtower (MT) Rear Panel Components ........................................................................................... 4

Small Form Factor (SFF) Rear Panel Components ............................................................................. 5

Media Card Reader Components ......................................................................................................... 5

Keyboard .............................................................................................................................................. 7

Using the Windows Logo Key .............................................................................................. 8

Serial Number Location ...................................................................................................................... 10

2 Microtower (MT) Hardware Upgrades ......................................................................................................... 11

Serviceability Features ....................................................................................................................... 11

Warnings and Cautions ...................................................................................................................... 11

Removing the Computer Access Panel .............................................................................................. 12

Replacing the Computer Access Panel .............................................................................................. 13

Removing the Front Bezel .................................................................................................................. 14

Removing Bezel Blanks ..................................................................................................................... 14

Replacing the Front Bezel .................................................................................................................. 15

System Board Connections ................................................................................................................ 16

Installing Additional Memory .............................................................................................................. 17

DIMMs ............................................................................................................................... 17

DDR3-SDRAM DIMMs ...................................................................................................... 17

Populating DIMM Sockets ................................................................................................. 17

Installing DIMMs ................................................................................................................ 18

Removing or Installing an Expansion Card ........................................................................................ 19

Drive Positions ................................................................................................................................... 24

Installing and Removing Drives .......................................................................................................... 25

Removing a 5.25-inch or 3.5-inch Drive from a Drive Bay ................................................. 27

Installing a 5.25-inch or 3.5-inch Drive into a Drive Bay .................................................... 29

Removing a Hard Drive from a Drive Bay .......................................................................... 32

Installing a Hard Drive into an Internal Drive Bay .............................................................. 33

Installing a Security Lock .................................................................................................................... 37

Cable Lock ......................................................................................................................... 37

Padlock .............................................................................................................................. 37

HP Business PC Security Lock .......................................................................................... 38

Front Bezel Security .......................................................................................................... 42

3 Small Form Factor (SFF) Hardware Upgrades ........................................................................................... 44

Serviceability Features ....................................................................................................................... 44

Warnings and Cautions ...................................................................................................................... 44

Removing the Computer Access Panel .............................................................................................. 45

Replacing the Computer Access Panel .............................................................................................. 46

Removing the Front Bezel .................................................................................................................. 47

Removing Bezel Blanks ..................................................................................................................... 47

Replacing the Front Bezel .................................................................................................................. 48

Changing from Desktop to Tower Configuration ................................................................................ 49

System Board Connections ................................................................................................................ 50

Installing Additional Memory .............................................................................................................. 51

DIMMs ............................................................................................................................... 51

DDR3-SDRAM DIMMs ...................................................................................................... 51

Populating DIMM Sockets ................................................................................................. 51

Installing DIMMs ................................................................................................................ 52

Removing or Installing an Expansion Card ........................................................................................ 55

Drive Positions ................................................................................................................................... 59

Installing and Removing Drives .......................................................................................................... 60

Removing a 5.25-inch Drive from a Drive Bay ................................................................... 62

Installing a 5.25-inch Drive into a Drive Bay ...................................................................... 64

Removing a 3.5-inch Drive from a Drive Bay ..................................................................... 67

Installing a 3.5-inch Drive into a Drive Bay ........................................................................ 69

Removing and Replacing the Primary 3.5-inch Internal Hard Drive .................................. 71

Installing a Security Lock .................................................................................................................... 75

Cable Lock ......................................................................................................................... 75

Padlock .............................................................................................................................. 75

HP Business PC Security Lock .......................................................................................... 76

Front Bezel Security .......................................................................................................... 80

Appendix A Battery Replacement .................................................................................................................. 82

Appendix B Removing and Replacing a Removable 3.5-inch SATA Hard Drive ....................................... 85

Appendix C Unlocking the Smart Cover Lock .............................................................................................. 90

Smart Cover FailSafe Key .................................................................................................................. 90

Using the Smart Cover FailSafe Key to Remove the Smart Cover Lock ........................................... 90

Appendix D Electrostatic Discharge .............................................................................................................. 92

Preventing Electrostatic Damage ....................................................................................................... 92

Grounding Methods ............................................................................................................................ 92

Appendix E Computer Operating Guidelines, Routine Care and Shipping Preparation ........................... 93

Computer Operating Guidelines and Routine Care ............................................................................ 93

Optical Drive Precautions ................................................................................................................... 94

Operation ........................................................................................................................... 94

Cleaning ............................................................................................................................. 94

Safety ................................................................................................................................. 94

Shipping Preparation .......................................................................................................................... 94

Index ................................................................................................................................................................... 95

vii

viii

1 Product Features

Standard Configuration Features

Features may vary depending on the model. For a complete listing of the hardware and software installed in the computer, run the diagnostic utility (included on some computer models only).

Figure 1-1 Microtower Configuration

Figure 1-2 Small Form Factor Configuration

NOTE: The Small Form Factor computer can also be used in a tower orientation. For more

information, see

Changing from Desktop to Tower Configuration on page 49 in this guide.

Standard Configuration Features 1

Microtower (MT) Front Panel Components

Drive configuration may vary by model. Some models have a bezel blank covering one or more drive bays.

Table 1-1 Front Panel Components

1 5.25-inch Optical Drives 5 3.5-inch Media Card Reader (optional)

2 Hard Drive Activity Light 6 Dual-State Power Button

3 Microphone/Headphone Connector 7 Power On Light

4 USB (Universal Serial Bus) 2.0 Ports 8 Headphone Connector

NOTE: When a device is plugged into the Microphone/Headphone Connector, a dialog box will pop up asking if

you want to use the connector for a microphone Line-In device or a headphone. You can reconfigure the connector at any time in the Realtek HD Audio Manager.

NOTE: The Power On Light is normally green when the power is on. If it is flashing red, there is a problem with

the computer and it is displaying a diagnostic code. Refer to the Maintenance and Service Guide to interpret the code.

2 Chapter 1 Product Features

Small Form Factor (SFF) Front Panel Components

Drive configuration may vary by model. Some models have a bezel blank covering one or more drive bays.

Figure 1-3 Front Panel Components

Table 1-2 Front Panel Components

1 5.25-inch Optical Drive 5 Microphone/Headphone Connector

2 Dual-State Power Button 6 3.5-inch Media Card Reader (optional)

3 Power On Light 7 Hard Drive Activity Light

4 USB (Universal Serial Bus) Ports 8 Headphone Connector

NOTE: When a device is plugged into the Microphone/Headphone Connector, a dialog box will pop up asking if

you want to use the connector for a microphone Line-In device or a headphone. You can reconfigure the connector at any time in the Realtek HD Audio Manager.

NOTE: The Power On Light is normally green when the power is on. If it is flashing red, there is a problem with

the computer and it is displaying a diagnostic code. Refer to the Maintenance and Service Guide to interpret the code.

Small Form Factor (SFF) Front Panel Components 3

Microtower (MT) Rear Panel Components

Figure 1-4 Rear Panel Components

Table 1-3 Rear Panel Components

1 Power Cord Connector 6 Line-Out Connector for powered audio

devices (green)

Line-In Audio Connector (blue) 7 PS/2 Keyboard Connector (purple)

PS/2 Mouse Connector (green) 8 VGA Monitor Connector

Serial Connector 9 DisplayPort Monitor Connector

RJ-45 Network Connector 10 USB 3.0 ports (blue)

USB 2.0 ports (black)

NOTE: An optional second serial port and an optional parallel port are available from HP.

When a device is plugged into the blue Line-In Audio Connector, a dialog box will pop up asking if you want to use the connector for a line-in device or a microphone. You can reconfigure the connector at any time in the Realtek HD Audio Manager.

For AMD/ATI graphic cards installed in one of the system board slots, the video connectors on the graphics card and the integrated graphics on the system board may be used at the same time. However, for other non-AMD/ATI graphics cards, the video connectors will only be functional on the graphics card.

4 Chapter 1 Product Features

Small Form Factor (SFF) Rear Panel Components

Figure 1-5 Rear Panel Components

Table 1-4 Rear Panel Components

1 RJ-45 Network Connector 7 DisplayPort Monitor Connector

Serial Connector 8 VGA Monitor Connector

PS/2 Mouse Connector (green) 9 PS/2 Keyboard Connector (purple)

4 Power Cord Connector 10

Line-Out Connector for powered audio devices (green)

USB 2.0 ports (black) 11 Line-In Audio Connector (blue)

USB 3.0 ports (blue)

NOTE: An optional second serial port and an optional parallel port are available from HP.

Media Card Reader Components

The media card reader is an optional device available on some models only. Refer to the following illustration and table to identify the media card reader components.

Figure 1-6 Media Card Reader Components

Small Form Factor (SFF) Rear Panel Components 5

Table 1-5 Media Card Reader Components

No. Slot Media

1 xD ● xD-Picture Card (xD)

2 MicroSD

●

MicroSD (T-Flash)

●

MicroSDHC

3 Media Card Reader

Activity Light

4 SD/MMC+/miniSD ● Secure Digital (SD)

●

Secure Digital High Capacity (SDHC)

● MiniSD

● MiniSDHC

●

MultiMediaCard (MMC)

● Reduced Size

MultiMediaCard (RS MMC)

● MultiMediaCard 4.0

(MMC Plus)

●

Reduced Size MultiMediaCard 4.0 (MMC Mobile)

●

MMC Micro (adapter required)

5 USB

●

USB (Universal Serial Bus) Port

6 CompactFlash I/II

●

CompactFlash Card Type 1

●

CompactFlash Card Type 2

●

MicroDrive

7 MS PRO/MS PRO DUO

●

Memory Stick (MS)

●

MagicGate Memory Stick (MG)

●

MagicGate Memory Duo

●

Memory Stick Select

●

Memory Stick Duo (MS Duo)

●

Memory Stick PRO (MS PRO)

●

Memory Stick PRO Duo (MS PRO Duo)

●

Memory Stick PROHG Duo

●

Memory Stick Micro (M2) (adapter required)

6 Chapter 1 Product Features

Keyboard

Figure 1-7 Keyboard Features

Table 1-6 Keyboard Features

Component Component

1 Sleep 6 Mute volume

2 Fast reverse 7 Decrease volume

3 Play/pause 8 Increase volume

4 Stop 9 Windows logo key

5 Fast forward 10 Function

Keyboard 7

Using the Windows Logo Key

Use the Windows Logo key in combination with other keys to perform certain functions available in the Windows operating system.

Table 1-7 Windows Logo Key Functions

Windows Logo Key + Windows 7 Windows 8

no other key Displays the Start menu Displays the Start screen

c Opens charms

d Displays the Desktop Displays the Desktop

e Launches My Computer Opens Windows Explorer

f Launches Find Document Goes to files in Search charm

Ctrl + f Launches Find Computer Launches Find Computer

g Cycles through gadgets Cycles through gadgets

h Goes to Share charm

i Goes to Settings charm

k Goes to Devices charm

l Locks the computer if you are connected to

a network domain, or allows you to switch users if you are not connected to a network domain

Locks the computer if you are connected to a network domain, or allows you to switch users if you are not connected to a network domain

m Minimizes all open applications Minimizes all open applications

o Locks screen orientation

p Choose a presentation display mode Opens projection options

q Goes to Search charm

r Launches the Run dialog box Launches the Run dialog box

t Cycles through programs on the taskbar Cycles through programs on the taskbar

u Launches Ease of Access Center Launches Ease of Access Center

v Cycles through notifications

w Goes to Settings in Search charm

x Opens Windows Mobility Center if present Opens Windows Mobility Center if present

z Opens applications bar

F1 Launches Windows Help Launches Windows Help

Tab Cycles through programs on the Taskbar

using the Windows Flip 3-D

Cycles through metro application history

Ctrl + Tab Use the arrow keys to cycle through

programs on the Taskbar by using Windows Flip 3-D

Use the arrow keys to cycle through metro application history

Spacebar Brings all gadgets to the front and select

Windows Sidebar

Switches input language and keyboard layout

8 Chapter 1 Product Features

Table 1-7 Windows Logo Key Functions (continued)

Windows Logo Key + Windows 7 Windows 8

any number key Goes to the application at the given position

on the taskbar

Goes to the application at the given position on the taskbar

up arrow Maximizes the window Maximizes the desktop window

left arrow Snaps the window to the left side of the

screen

Snaps the desktop window to the left side of the screen

right arrow Snaps the window to the right side of the

screen

Snaps the desktop window to the right side of the screen

down arrow Minimizes the window Minimizes the desktop window

Shift + left arrow or right arrow

Moves a window from one monitor to another

, (comma) Peeks at the desktop

. (period) Snap a metro application to the right

Shift + . (period) Snap a metro application to the left

Enter Launches Narrator

Esc Exits Magnifier

+ (on numpad) Zooms in Zooms in (Magnifier)

- (on numpad) Zooms out Zooms out (Magnifier)

Home Minimizes non-active desktop windows Minimizes non-active desktop windows

Break Displays System Properties Displays System Properties

PgUp Moves Start screen to left monitor

PgDn Moves Start screen to right monitor

Keyboard 9

Serial Number Location

Each computer has a unique serial number and a product ID number that are located on the top cover of the computer. Keep these numbers available for use when contacting customer service for assistance.

Figure 1-8 Microtower Serial Number and Product ID Location

Figure 1-9 Small Form Factor Serial Number and Product ID Location

10 Chapter 1 Product Features

2 Microtower (MT) Hardware Upgrades

Serviceability Features

The computer includes features that make it easy to upgrade and service. No tools are needed for most of the installation procedures described in this chapter.

Warnings and Cautions

Before performing upgrades be sure to carefully read all of the applicable instructions, cautions, and warnings in this guide.

WARNING! To reduce the risk of personal injury from electrical shock, hot surfaces, or fire:

Disconnect the power cord from the wall outlet and allow the internal system components to cool before touching.

Do not plug telecommunications or telephone connectors into the network interface controller (NIC) receptacles.

Do not disable the power cord grounding plug. The grounding plug is an important safety feature.

Plug the power cord in a grounded (earthed) outlet that is easily accessible at all times.

To reduce the risk of serious injury, read the Safety & Comfort Guide. It describes proper workstation, setup, posture, and health and work habits for computer users, and provides important electrical and mechanical safety information. This guide is located on the Web at

http://www.hp.com/ergo.

WARNING! Energized and moving parts inside.

Disconnect power to the equipment before removing the enclosure.

Replace and secure the enclosure before re-energizing the equipment.

CAUTION: Static electricity can damage the electrical components of the computer or optional

equipment. Before beginning these procedures, ensure that you are discharged of static electricity by briefly touching a grounded metal object. See Electrostatic Discharge on page 92 for more information.

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 damage to internal components.

Serviceability Features 11

Removing the Computer Access Panel

To access internal components, you must remove the access panel:

1. Remove/disengage any security devices that prohibit opening the computer.

2. Remove all removable media, such as compact discs or USB flash drives, from the computer.

3. Turn off the computer properly through the operating system, then turn off any external devices.

4. Disconnect the power cord from the power outlet and disconnect any external devices.

CAUTION: Regardless of the power-on state, voltage is always present on the system board

as long as the system is plugged into an active AC outlet. You must disconnect the power cord to avoid damage to the internal components of the computer.

5. Loosen the two captive thumbscrews (1) that secure the access panel to the computer chassis.

6. Use the handle located between the thumbscrews to lift the access panel off the unit (2).

NOTE: You may want to lay the computer on its side to install internal parts. Be sure the side

with the access panel is facing up.

Figure 2-1 Removing the Computer Access Panel

12 Chapter 2 Microtower (MT) Hardware Upgrades

Replacing the Computer Access Panel

1. Slide the lip on the front end of the access panel under the lip on the front of the chassis (1) then

press the back end of the access panel onto the unit (2).

Figure 2-2 Replacing the Computer Access Panel

2. Ensure that the panel is completely closed (1) and tighten the two thumbscrews that secure the

access panel to the chassis (2).

Figure 2-3 Tightening the Access Panel Thumbscrews

Replacing the Computer Access Panel 13

Removing the Front Bezel

1. Remove/disengage any security devices that prohibit opening the computer.

2. Remove all removable media, such as compact discs or USB flash drives, from the computer.

3. Turn off the computer properly through the operating system, then turn off any external devices.

4. Disconnect the power cord from the power outlet and disconnect any external devices.

CAUTION: Regardless of the power-on state, voltage is always present on the system board

as long as the system is plugged into an active AC outlet. You must disconnect the power cord to avoid damage to the internal components of the computer.

5. Remove the computer access panel.

6. Lift up the three tabs on the side of the bezel (1), then rotate the bezel off the chassis (2).

Figure 2-4 Removing the Front Bezel

Removing Bezel Blanks

On some models, there are bezel blanks covering the 3.5-inch and 5.25-inch drive bays that need to be removed before installing a drive. To remove a bezel blank:

1. Remove the access panel and front bezel.

14 Chapter 2 Microtower (MT) Hardware Upgrades

2. To remove a bezel blank, push the two retaining tabs that hold the bezel blank in place towards

the outer right edge of the bezel (1) and slide the bezel blank back and to the right to remove it (2).

Figure 2-5 Removing a Bezel Blank

Replacing the Front Bezel

Insert the three hooks on the left side of the bezel into the rectangular holes on the chassis (1) then rotate the right side of the bezel onto the chassis (2) and snap it into place.

Figure 2-6 Replacing the Front Bezel

Replacing the Front Bezel 15

System Board Connections

Refer to the following illustrations and tables to identify the system board connectors for your model.

Figure 2-7 System Board Connections

Table 2-1 System Board Connections

No. System Board Connector System Board Label Color Component

1 DIMM4 (Channel A) DIMM4 white Memory Module

2 DIMM3 (Channel A) DIMM3 black Memory Module

3 DIMM2 (Channel B) DIMM2 white Memory Module

4 DIMM1 (Channel B) DIMM1 black Memory Module

5 eSATA ESATA black eSATA Adapter Cable, or 2nd

Optical Drive

6 SATA 2.0 SATA2 white 1st Optical Drive

7 Power SATAS_PWR2 black SATA Hard Drives

8 Power SATAS_PWR1 black SATA Optical Drives

9 SATA 3.0 SATA1 light blue 2nd Hard Drive, or 2nd Optical Drive

if an ESATA Adapter Cable exists

10 SATA 3.0 SATA0 dark blue 1st Hard Drive

11 Serial Port COMB black Serial Port

12 Parallel Port PAR black Parallel Port

13 USB MEDIA2 black Second Media Card Reader

14 Hood Lock HLCK black USB Device, such as a Media Card

Reader

15 Hood Sensor HSENSE white Hood Sensor

16 USB MEDIA black USB Device, such as a Media Card

Reader

17 PCI Express x1 X1PCIEXP1 black Expansion Card

16 Chapter 2 Microtower (MT) Hardware Upgrades

Table 2-1 System Board Connections (continued)

No. System Board Connector System Board Label Color Component

18 PCI Express x16 downshifted

to a x4

X4PCIEXP white Expansion Card

19 PCI Express x16 X16PCIEXP black Expansion Card

20 PCI PCI1 white Expansion Card

Installing Additional Memory

The computer comes with double data rate 3 synchronous dynamic random access memory (DDR3SDRAM) dual inline memory modules (DIMMs).

DIMMs

The memory sockets on the system board can be populated with up to four industry-standard DIMMs. These memory sockets are populated with at least one preinstalled DIMM. To achieve the maximum memory support, you can populate the system board with up to 16-GB of memory configured in a high-performing dual channel mode.

DDR3-SDRAM DIMMs

CAUTION: This product DOES NOT support DDR3 Ultra Low Voltage (DDR3U) memory. The

processor is not compatible with DDR3U memory and if you plug DDR3U memory into the system board, it can cause the physical damage to the DIMM or invoke system malfunction.

For proper system operation, the DDR3-SDRAM DIMMs must be:

●

industry-standard 240-pin

●

unbuffered non-ECC PC3-PC14800 DDR3-1866 MHz-compliant

●

1.5 volt DDR3-SDRAM DIMMs

The DDR3-SDRAM DIMMs must also:

●

support CAS latency 13 DDR3 1866 MHz (13-13-13 timing)

●

contain the mandatory JEDEC SPD information

In addition, the computer supports:

● 512-Mbit, 1-Gbit, 2-Gbit, 4-Gbit, and 8-Gbit non-ECC memory technologies

●

single-sided and double-sided DIMMs

●

DIMMs constructed with x8 and x16 DDR devices; DIMMs constructed with x4 SDRAM are not supported

NOTE: The system will not operate properly if you install unsupported DIMMs.

Populating DIMM Sockets

There are four DIMM sockets on the system board, with two sockets per channel. The sockets are labeled DIMM1, DIMM2, DIMM3, and DIMM4. Sockets DIMM1 and DIMM2 operate in memory channel B. Sockets DIMM3 and DIMM4 operate in memory channel A.

Installing Additional Memory 17

The system will automatically operate in single channel mode, dual channel mode, or flex mode, depending on how the DIMMs are installed.

NOTE: Single channel and unbalanced dual channel memory configurations will result in inferior

graphics performance.

●

The system will operate in single channel mode if the DIMM sockets are populated in one channel only.

●

The system will operate in a higher-performing dual channel mode if the total memory capacity of the DIMMs in Channel A is equal to the total memory capacity of the DIMMs in Channel B. The technology and device width can vary between the channels. For example, if Channel A is populated with two 1-GB DIMMs and Channel B is populated with one 2-GB DIMM, the system will operate in dual channel mode.

●

The system will operate in flex mode if the total memory capacity of the DIMMs in Channel A is not equal to the total memory capacity of the DIMMs in Channel B. In flex mode, the channel populated with the least amount of memory describes the total amount of memory assigned to dual channel and the remainder is assigned to single channel. For optimal speed, the channels should be balanced so that the largest amount of memory is spread between the two channels. If one channel will have more memory than the other, the larger amount should be assigned to Channel A. For example, if you are populating the sockets with one 2-GB DIMM, and three 1-GB DIMMs, Channel A should be populated with the 2-GB DIMM and one 1-GB DIMM, and Channel B should be populated with the other two 1-GB DIMMs. With this configuration, 4-GB will run as dual channel and 1-GB will run as single channel.

●

In any mode, the maximum operational speed is determined by the slowest DIMM in the system.

Installing DIMMs

CAUTION: You must disconnect the power cord and wait approximately 30 seconds for the power

to drain before adding or removing memory modules. Regardless of the power-on state, voltage is always supplied to the memory modules as long as the computer is plugged into an active AC outlet. Adding or removing memory modules while voltage is present may cause irreparable damage to the memory modules or system board.

The memory module sockets have gold-plated metal contacts. When upgrading the memory, it is important to use memory modules with gold-plated metal contacts to prevent corrosion and/or oxidation resulting from having incompatible metals in contact with each other.

Static electricity can damage the electronic components of the computer or optional cards. Before beginning these procedures, ensure that you are discharged of static electricity by briefly touching a grounded metal object. For more information, refer to

Electrostatic Discharge on page 92.

When handling a memory module, be careful not to touch any of the contacts. Doing so may damage the module.

1. Remove/disengage any security devices that prohibit opening the computer.

2. Remove all removable media, such as compact discs or USB flash drives, from the computer.

3. Turn off the computer properly through the operating system, then turn off any external devices.

4. Disconnect the power cord from the power outlet and disconnect any external devices.

CAUTION: You must disconnect the power cord and wait approximately 30 seconds for the

power to drain before adding or removing memory modules. Regardless of the power-on state, voltage is always supplied to the memory modules as long as the computer is plugged into an active AC outlet. Adding or removing memory modules while voltage is present may cause irreparable damage to the memory modules or system board.

18 Chapter 2 Microtower (MT) Hardware Upgrades

5. Remove the computer access panel.

WARNING! To reduce risk of personal injury from hot surfaces, allow the internal system

components to cool before touching.

6. Open both latches of the memory module socket (1), and insert the memory module into the

socket (2).

Figure 2-8 Installing a DIMM

NOTE: A memory module can be installed in only one way. Match the notch on the module

with the tab on the memory socket.

Populate the black DIMM sockets before the white DIMM sockets.

For maximum performance, populate the sockets so that the memory capacity is spread as equally as possible between Channel A and Channel B. Refer to

Populating DIMM Sockets

on page 17 for more information.

7. Push the module down into the socket, ensuring that the module is fully inserted and properly

seated. Make sure the latches are in the closed position (3).

8. Repeat steps 6 and 7 to install any additional modules.

9. Replace the computer access panel.

10. Reconnect the power cord and turn on the computer.

11. Lock any security devices that were disengaged when the access panel was removed.

The computer should automatically recognize the additional memory the next time you turn on the computer.

Removing or Installing an Expansion Card

The computer has one PCI expansion slot, one PCI Express x1 expansion slot, one PCI Express x16 expansion slot, and one PCI Express x16 expansion slot that is downshifted to a x4 slot.

Removing or Installing an Expansion Card 19

NOTE: You can install a PCI Express x1, x4, x8, or x16 expansion card in the PCI Express x16 slot.

For dual graphics card configurations, the first (primary) card must be installed in the PCI Express x16 slot that is NOT downshifted to a x4 slot.

To remove, replace, or add an expansion card:

1. Remove/disengage any security devices that prohibit opening the computer.

2. Remove all removable media, such as compact discs or USB flash drives, from the computer.

3. Turn off the computer properly through the operating system, then turn off any external devices.

4. Disconnect the power cord from the power outlet and disconnect any external devices.

CAUTION: Regardless of the power-on state, voltage is always present on the system board

as long as the system is plugged into an active AC outlet. You must disconnect the power cord to avoid damage to the internal components of the computer.

5. Remove the computer access panel.

6. Locate the correct vacant expansion socket on the system board and the corresponding

expansion slot on the back of the computer chassis.

7. Release the slot cover retention latch that secures the PCI slot covers by lifting the green tab on

the latch and rotating the latch to the open position.

Figure 2-9 Opening the Expansion Slot Retainer

20 Chapter 2 Microtower (MT) Hardware Upgrades

8. Before installing an expansion card, remove the expansion slot cover or the existing expansion

card.

NOTE: Before removing an installed expansion card, disconnect any cables that may be

attached to the expansion card.

a. If you are installing an expansion card in a vacant socket, remove the appropriate

expansion slot cover on the back of the chassis. Pull the slot cover straight up then away from the inside of the chassis.

Figure 2-10 Removing an Expansion Slot Cover

Removing or Installing an Expansion Card 21

b. If you are removing a standard PCI card or PCI Express x1 card, hold the card at each end,

and carefully rock it back and forth until the connectors pull free from the socket. Pull the expansion card straight up from the socket then away from the inside of the chassis to release it from the chassis frame. Be sure not to scrape the card against the other components.

Figure 2-11 Removing a Standard PCI Expansion Card

c. If you are removing a PCI Express x16 card, pull the retention arm on the back of the

expansion socket away from the card and carefully rock the card back and forth until the connectors pull free from the socket. Pull the expansion card straight up from the socket then away from the inside of the chassis to release it from the chassis frame. Be sure not to scrape the card against the other components.

Figure 2-12 Removing a PCI Express x16 Expansion Card

9. Store the removed card in anti-static packaging.

22 Chapter 2 Microtower (MT) Hardware Upgrades

+ 74 hidden pages

Compaq Pro 6305 Hardware Reference Manual

Specifications and Main Features

Frequently Asked Questions

User Manual