Home » Compaq Manuals » Desktops » Compaq dx2810 » Manual Viewer

Compaq dx2810 Service Reference Guide: HP Compaq dx2810 and dx2818 Business PC - Page 115

Populating DIMM Sockets,

Add to My Manuals
Save this manual to your list of manuals

Page 115 highlights

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 A. Sockets DIMM3 and DIMM4 operate in memory channel B. Figure 8-28 DIMM Socket Locations Table 8-2 DIMM Socket Locations Item Description Socket Color 1 XMM1 socket, Channel A White (populate first) 2 XMM2 socket, Channel A Black 3 XMM3 socket, Channel B White (populate second) 4 XMM4 socket, Channel B Black NOTE: A DIMM must occupy the XMM1 socket. The system will automatically operate in single channel mode, dual channel mode, or flex mode, depending on how the DIMMs are installed. ● 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 512-MB DIMMs and Channel B is populated with one 1-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 Memory 105

Section	Page
Product Features	11
Front Panel Components	11
Rear Panel Components	13
Keyboard	15
Using the Windows Logo Key	16
Serial Number Location	17
Installing and Customizing the Software	18
Installing the Operating System	18
Installing or Upgrading Device Drivers	18
HP Backup and Recovery Manager	18
Computer Setup (F10) Utility	20
Computer Setup (F10) Utilities	20
Using Computer Setup (F10) Utilities	20
Computer Setup—Main	21
Computer Setup—Advanced	22
Computer Setup—Power	24
Computer Setup—Boot	25
Computer Setup—Exit	26
Recovering the Configuration Settings	26
Computer Diagnostic Features	27
HP Insight Diagnostics	27
Accessing HP Insight Diagnostics	27
Survey Tab	28
Diagnose Tab	28
Test Tab	29
Status Tab	30
Log Tab	31
Help Tab	31
Saving and Printing Information in HP Insight Diagnostics	31
Downloading the Latest Version of HP Insight Diagnostics	32
Protecting the Software	32
HP Backup and Recovery Manager	33
Serial ATA (SATA) Drive Guidelines and Features	34
SATA Hard Drives	34
SATA Hard Drive Cables	34
SATA Data Cable	34
SMART ATA Drives	35
Hard Drive Capacities	35
Identifying the Chassis, Routine Care, and Disassembly Preparation	36
Chassis Designations	36
Microtower (MT)	36
Small Form Factor (SFF)	38
Electrostatic Discharge Information	38
Generating Static	38
Preventing Electrostatic Damage to Equipment	39
Personal Grounding Methods and Equipment	39
Grounding the Work Area	40
Recommended Materials and Equipment	40
Operating Guidelines	41
Routine Care	42
General Cleaning Safety Precautions	42
Cleaning the Computer Case	42
Cleaning the Keyboard	42
Cleaning the Monitor	43
Cleaning the Mouse	43
Service Considerations	43
Power Supply Fan	43
Tools and Software Requirements	43
Screws	44
Cables and Connectors	44
Hard Drives	44
Lithium Coin Cell Battery	45
Removal and Replacement Procedures Microtower (MT) Chassis	46
Serial Number Location	46
Preparation for Disassembly	47
Access Panel	48
Front Bezel	49
Bezel Blanks	50
Memory	51
DIMMs	51
DDR2-SDRAM DIMMs	51
Populating DIMM Sockets	52
Installing DIMMs	53
Expansion Cards	55
Cable Management	59
Cable Connections	60
Drives	61
Drive Positions	61
Installing Additional Drives	62
System Board Drive Connections	64
Removing an Optical Drive	65
Installing an Optical Drive into the 5.25-inch Drive Bay	66
Removing an External 3.5-inch Drive	67
Installing a Drive into the 3.5-inch External Drive Bay	69
Removing an Internal 3.5-inch Hard Drive	70
Installing an Internal 3.5-inch Hard Drive	73
Front I/O and USB Panel Housing Assembly	76
Power Switch/LED Assembly	77
System Fan	78
Heatsink assembly	79
Processor	80
Power Supply	81
System Board	83
Battery	85
Type 1 Battery Holder	86
Type 2 Battery Holder	86
Type 3 Battery Holder	87
Installing a Security Lock	88
Cable Lock	88
Padlock	88
HP Business PC Security Lock	89
Hood Sensor	91
Port Cover	92
Removal and Replacement Procedures Small Form Factor (SFF) Chassis	93
Preparation for Disassembly	93
Access Panel	94
Front Bezel	95
Bezel Blanks	96
Cable Management	97
Cable Connections	98
Drives	99
Drive Positions	99
Installing Additional Drives	100
System Board Drive Connections	101
Removing an Optical Drive	102
Installing an Optical Drive into the 5.25-inch Drive Bay	103
Removing an External 3.5-inch Drive	105
Installing a Drive into the 3.5-inch External Drive Bay	107
Removing an Internal 3.5-inch Hard Drive	110
Installing an Internal 3.5-inch Hard Drive	112
Memory	114
DDR2-SDRAM DIMMs	114
Populating DIMM Sockets	115
Installing DIMMs	116
Removing or Installing an Expansion Card	119
Plastic Wire/Cable Fastener and Clips	123
Front I/O Device	124
Power Switch Assembly	125
Speaker	126
Heatsink	127
Processor	128
Power Supply	129
System Board	131
Battery	132
Type 1 Battery Holder	133
Type 2 Battery Holder	133
Type 3 Battery Holder	134
Installing a Security Lock	135
Cable Lock	135
Padlock	135
HP Business PC Security Lock	136
Connector Pin Assignments	138
Keyboard	138
Mouse	138
Ethernet BNC	138
Parallel Interface	139
Serial Interface, Powered and Non-Powered	139
USB	140
Microphone	140
Headphone	140
Line-in Audio	140
Line-out Audio	140
Monitor	141
24-Pin Power	141
PCI Express	142
PCI Express	143
4-Pin Power (for CPU)	144
Power Cord Set Requirements	145
General Requirements	145
Japanese Power Cord Requirements	145
Country-Specific Requirements	146
Troubleshooting	147
Safety and Comfort	147
Before You Call for Technical Support	147
Helpful Hints	148
Solving General Problems	149
Solving Hardware Installation Problems	152
Interpreting POST Diagnostic Front Panel LEDs and Audible Codes	153
Contacting Customer Support	155
Specifications	156
Microtower	156
Small Form Factor	157

Match case Limit results 1 per page

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

A. Sockets DIMM3 and DIMM4 operate in memory channel B.

Figure 8-28

DIMM Socket Locations

Table 8-2

DIMM Socket Locations

Item

Description

Socket Color

XMM1 socket, Channel A

(populate first)

White

XMM2 socket, Channel A

Black

XMM3 socket, Channel B

(populate second)

White

XMM4 socket, Channel B

Black

NOTE:

A DIMM must occupy the XMM1 socket.

The system will automatically operate in single channel mode, dual channel mode, or flex mode,

depending on how the DIMMs are installed.

●

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 512-MB DIMMs and Channel B is populated with one 1-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

Memory

105