HP 3330 Microtower Specifications Page 120
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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 one 1-GB
DIMMs, Channel A should be populated with the 2-GB DIMM, and Channel B should be
populated with the 1-GB DIMM. With this configuration, 2 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.
The system will automatically operate in single channel mode, dual channel mode, or flex mode,
depending on how the DIMMs are installed.
Removing 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 Information on page 42.
When handling a memory module, be careful not to touch any of the contacts. Doing so may damage
the module.
1. Prepare the computer for disassembly (Preparation for Disassembly on page 104).
2. Remove the access panel (
Access Panel on page 105).
3. Remove the front bezel (
Front Bezel on page 107).
4. Rotate the optical drive to its upright position.
110 Chapter 8 Removal and Replacement Procedures Small Form Factor (SFF) Chassis
- HP Elite 7500 Microtower 1
- HP Elite 7300 Microtower 1
- HP Pro 3300 Microtower 1
- HP Pro 3305 Microtower 1
- HP Pro 3300 Small Form Factor 1
- About This Book 3
- Table of contents 5
- 1 Product Features 11
- Serviceability Features 12
- Microtower Components 12
- Small Form Factor Components 13
- Software 14
- Downloading Windows 7 updates 15
- Downloading Windows 8 updates 16
- Computer Setup—File 19
- Computer Setup—Storage 20
- Computer Setup—Security 23
- Computer Setup—Power 27
- Computer Setup—Advanced 28
- 4 Illustrated parts catalog 31
- Misc Parts 36
- Misc Boards 37
- Computer major components 43
- SATA Hard Drives 50
- SATA Hard Drive Cables 50
- SMART ATA Drives 51
- Hard Drive Capacities 51
- Preparation 52
- Grounding the Work Area 54
- Operating Guidelines 55
- Routine Care 56
- Service Considerations 57
- Cables and Connectors 58
- Hard Drives 58
- Lithium Coin Cell Battery 59
- Microtower (MT) Chassis 60
- Removing Memory Modules 69
- Expansion Cards 71
- 3MiniPCI slot 72
- Expansion Cards 63 73
- Installing Additional Drives 82
- Drives 73 83
- Removing an Optical Drive 84
- Drives 75 85
- Removing a Hard Drive 87
- Drives 79 89
- Drives 81 91
- Drives 83 93
- Description Spare part number 94
- Power Switch/LED Assembly 97
- System Fan 99
- Fan Sink Assembly 101
- Processor 103
- Processor 97 107
- Power Supply 108
- System Board 110
- Preparation for Disassembly 114
- Access Panel 115
- Front Bezel 117
- DDR3-SDRAM DIMMs 118
- Populating DIMM Sockets 119
- Removing DIMMs 120
- Expansion Card 123
- Item Description 124
- PCI PCI expansion slot 124
- Cable Management 128
- Cable Connections 129
- Drive Positions 130
- Removing Drives 131
- Removing the Hard Drive 133
- Drives 125 135
- Power Switch 137
- Front USB Assembly 139
- Front USB Assembly 131 141
- Fan Assembly 142
- Fan Assembly 133 143
- Fan Sink 144
- Safety and Comfort 154
- Helpful Hints 155
- Solving General Problems 157
- Solving General Problems 149 159
- Solving Power Problems 161
- Solving Hard Drive Problems 163
- Solving Display Problems 168
- Solving Display Problems 159 169
- Solving Display Problems 161 171
- Solving Audio Problems 173
- Solving Printer Problems 175
- Solving Network Problems 181
- Solving Network Problems 173 183
- Solving Memory Problems 184
- Solving Memory Problems 175 185
- Solving Processor Problems 186
- Solving Software Problems 192
- Solving Software Problems 183 193
- Contacting Customer Support 194
- B HP PC Hardware Diagnostics 195
- C Backup and Recovery 198
- Backing up your information 203
- Performing a system recovery 204
- Using f11 recovery tools 205
- D Power Cord Set Requirements 206
- Country-Specific Requirements 207
- E POST Error Messages 208
- Audible Codes 217
- G Specifications 226
- SFF Specifications 227
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