LG Electronics USA DT-NK Users Manual

System Expansion

69

6-2. Main Board

The model name of the computer depends on the main board type. When extend­ing the computer, check the model name on the label attached on the rear panel
of the computer and the following. Before extending the computer, check the main
board first.

Expansion slot (PCI-E x1)

Expansion slot (PCI)

Expansion slot (PCI-E x16)

CPU socket (with Pentium4 LGA 775)

Memory socket (DIMM)

Floppy disk connector

Hard disk/CD-ROM connector

Serial ATA-type hard disk connector

The main board in your computer may look different from the picture.

Note

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6-3. Internal Connectors

Connectors are configured in a certain way at the factory, and connectors show the
connection status between the main board of the computer and peripherals.
(Connector configuration depends on product models.)

Before separating the connector, check the connection state of the connectors and leave a
record on the state.

Link the floppy disk driver connector and the hard disk/CD-ROM connector in the correct
direction.

The Pin Number and the color of the connector cable must match. Otherwise, an error may
occur in the computer.

Risk of explosin if battery is replaced by an incorrect type. Dispose of used batteries
according to the instructions.

There is a risk of explosion if the backup(standby) RTC battery is replaced by an incorrect
type. Dispose of used backup(stadby) RTC battery according to your local ordinances or
regulation.

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Power on/off and power/hard disk
operation status indication lamp
connector (F_PANEL)

Connects the floppy disk
driver.

Floppy disk driver connector
(FDD: 34 pins)

Power connector (ATX: 24 pins)

Connects the power
supply unit.

Power connector (ATX_12V: 4 pins)

Connects the front
USB

.

USB connector (F_USB1, F_USB1:
10 pins)

Connects camcorders
supporting IEEE1394.

1394 connector (F1_1394: 10 pins)

Connects a front ear­phone and microphone.

Audio connector (AZALIA_FP: 10
pins)

S_ATA connector is
linked to the hard disk
driver.

Connects the power
on/off switch and the
power/hard disk operation
status indication lamp.

CDROM, hard disk
driver.

Connects the power
supply unit.

Hard disk connector (S_ATA1,
S_ATA2, S_ATA3, S_ATA4: 7 pins)

Optic drive connector (IDE : 40 pins)

Connects the SPDIF
port with optic output
feature.

SPDIF connector (SPDIF_LG: 3 pins)

Provides power to the
CPU fan.

CPU fan (CPU_FAN: 4 pins)

Connects the VFD.

VFD connector

Installed at the bottom
(rear panel) of the system,
and connects the VFD.

System fan (SYSTEM_FAN: 3 pins)

F_PANEL

ATX

S_ATA

IDE

FDD

ATX

USB

F1_1394

AZALIA_FP

SPIF

CPU_FAN

SYSTEM_FAN

VFD

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6-4 Replacing the CPU

To upgrade the CPU for better performance of the computer, you need to replace the
CPU first. Check the location and the type of the CPU in the main board, and do the
following. (Shape of the CPU FAN and CPU replacement methods may differ by
model.)

Align the groove to the right position,
pins can easily be broken.

Unfasten four screws fixing the CPU fan as shown in the figure.

Turn the CPU socket handle as shown in the figure of Step , and open the cover
as shown in the figure of Step .

Remove the CPU fan as shown in the figure.

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Always wear gloves to avoid injuries.

Lift the CPU up carefully to remove it from the main board.

Insert the new CPU with caution in the CPU socket in the correct direction and
close the cover and then put down the handle of the CPU socket

Insert the CPU FAN as shown in the figure, and fix it with four screws.

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6-5. Expanding the Computer Memory

You may expand the memory capacity, if needs be.

About Memory

This system uses a 240-pin memory module called Double Data Rate-2 (DDR-2),
not the old 184-pin memory module called Double Data Rate (DDR). The main
board can support maximum 2GB in memory.

Before Expanding the Memory

When disassembling the computer, wear gloves to protect internal parts of the
computer and slot cards from damage.

As the memory is sensitive to static electricity, be careful with the static electrici­ty when removing or installing a memory.

Check the specifications of the current memory and the new memory before
expanding the memory.

Unlike SIMM, DIMM is of 64 bits. Therefore, single DIMM can function, and you
can add DIMM by one.

Windows 95, 98SE, and ME support maximum 512MB. Installing a memory with higher
capacity than 512MB may cause malfunctioning of the system.

Note

Note

When expanding the memory, add a memory with the same specification (DDR-2
SDRAM for 1.8V). (The shape of the memory may differ depending on the product
model.)

The DDR-2 memory provides greatly improved transmission rate than existing memo­ries, and is differently shaped.

75System Expansion

Refer to the following when expanding memory.

This computer supports PC3200/4300, DDR-2 specification.

When expanding the memory, use only unbuffered DDR SDRAM DMM

When inserting two same memories in same-colored DIMM slots, the computer will oper­ate in Dual Channel mode.

FSB Frequency

400/533 MHz

Usable Memory

PC3200/4300-DDR-2 SDRAM 400/533MHz

Preparing a Memory

Before purchasing memory, study the specifications and features of the current
memory.

Specification : PC3200/4300 (240-pin DDR-2 SDRAM)
Rate : 400MHz (200MHz

2), 533MHz (266MHz 2)

Type : 256MB, 512MB

Composing the Memory

Total memory capacity

DIMM 1

DIMM 2 DIMM 3 DIMM 4

DUAL/SINGLE

SINGLE

DUAL

DUAL

SINGLE

DUAL

DUAL

DUAL

DUAL

512MB

256MB 256MB

256MB 256MB

256MB

1024MB

256MB 256MB 256MB 256MB

512MB

512MB

512MB 512MB

2048MB

512MB 512MB 512MB 512MB

512 (One out of four slots)

256 (One out of four slots)

The computer operates faster in Dual Channel mode.

Use the same memory to operate the computer in Dual Channel mode.

It is recommended to use Dual Channel mode.

Note

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Main board configuration, memory socket and memory type may differ by model.

Loosen the screws on the rear panel
of the computer, and remove the
cover.

Release the latches from both flanks of the memory. The memory will be
removed automatically.

Replacing the Memory

Before opening the computer cover,
turn off the power and all peripherals
connected to the computer. Disconnect
all power cables.

Note

Lay the latches outwards from the
memory socket.

Insert the memory (DIMM) vertically in
the socket in line with the grooves as
shown in the figure.

Installing Memory

When using a DDR-2 memory, the mem­ory must be installed in each channel for
Dual Channel mode.

1-3 and 2-4 of dual Channels No. 1 ~ 4

The memory will be automatically installed
even if not latched. However, it is recom­mended to fasten the latches until the
memory is completely fixed.

Note

The memory will be automatically
installed even if not latched. However, it
is recommended to fasten the latches
until the memory is completely fixed

latch