MSI MS-7392, P31 Neo2, P31/ G31 Neo2 G52-73921X4, G31 Neo2 User Manual

P31/ G31 Neo2 Series

MS-7392 (V2.X) Mainboard

G52-73921X4

i

Copyright Notice

The material in this document is the intellectual property of MICRO-STAR
INTERNATIONAL. We take every care in the preparation of this document, but no

guarantee is given as to the correctness of its contents. Our products are under
continual improvement and we reserve the right to make changes without notice.

Trademarks

All trademarks are the properties of their respective owners.
NVIDIA, the NVIDIA logo, DualNet, and nForce are registered trademarks or trade-

marks of NVIDIA Corporation in the United States and/or other countries.
AMD, Athlon™ , Athlon™ XP, Thoroughbred™, and Duron™ are registered trade­marks of AMD Corporation.
Intel® and Pentium® are registered trademarks of Intel Corporation.
PS/2 and OS®/2 are registered trademarks of International Business Machines
Corporation.
Windows® 95/98/2000/NT/XP are registered trademarks of Microsoft Corporation.
Netware® is a registered trademark of Novell, Inc.
Award® is a registered trademark of Phoenix Technologies Ltd.
AMI® is a registered trademark of American Megatrends Inc.

Revision History

Revision Revision History Date

V2.0 First release October 2007

Technical Support

If a problem arises with your system and no solution can be obtained from the user’s
manual, please contact your place of purchase or local distributor. Alternatively,
please try the following help resources for further guidance.

Visit the MSI website for FAQ, technical guide, BIOS updates, driver updates,
and other information: http://global.msi.com.tw/index.php?

func=faqIndex
Contact our technical staff at: http://support.msi.com.tw/

ii

Safety Instructions

1. Always read the safety instructions carefully.

2. Keep this User’s Manual for future reference.

3. Keep this equipment away from humidity.

4. Lay this equipment on a reliable flat surface before setting it up.

5. The openings on the enclosure are for air convection hence protects the equip­ment from overheating. DO NOT COVER THE OPENINGS.

6. Make sure the voltage of the power source and adjust properly 110/220V be­fore connecting the equipment to the power inlet.

7. Place the power cord such a way that people can not step on it. Do not place
anything over the power cord.

8. Always Unplug the Power Cord before inserting any add-on card or module.

9. All cautions and warnings on the equipment should be noted.

10. Never pour any liquid into the opening that could damage or cause electrical
shock.

11. If any of the following situations arises, get the equipment checked by service
personnel:

† The power cord or plug is damaged.
† Liquid has penetrated into the equipment.
† The equipment has been exposed to moisture.
† The equipment does not work well or you can not get it work according to

User’s Manual.

† The equipment has dropped and damaged.
† The equipment has obvious sign of breakage.

12. DO NOT LEAVE THIS EQUIPMENT IN AN ENVIRONMENT UNCONDITIONED, STOR­AGE TEMPERATURE ABOVE 600 C (1400F), IT MAY DAMAGE THE EQUIPMENT.

CAUTION: Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type recommended by the
manufacturer.

iii

FCC-B Radio Frequency Interference Statement

This equipment has been
tested and found to comply
with the limits for a Class B
digital device, pursuant to Part
15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates,
uses and can radiate radio frequency energy and, if not installed and used in accor­dance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of the measures listed
below.

† Reorient or relocate the receiving antenna.
† Increase the separation between the equipment and receiver.
† Connect the equipment into an outlet on a circuit different from that to

which the receiver is connected.

† Consult the dealer or an experienced radio/television technician for help.

Notice 1

The changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.

Notice 2

Shielded interface cables and A.C. power cord, if any, must be used in order to
comply with the emission limits.

VOIR LA NOTICE D’ INSTALLATION AVANT DE RACCORDER AU RESEAU.

Micro-Star International

MS-7392

This device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions:

(1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that

may cause undesired operation.

iv

WEEE (Waste Electrical and Electronic Equipment) Statement

v

vi

vii

CONTENTS

Copyright Notice...............................................................................................................ii

Trademarks.......................................................................................................................ii

Revision History...............................................................................................................ii

Technical Support............................................................................................................ii

Safety Instructions..........................................................................................................iii

FCC-B Radio Frequency Interference Statement........................................................iv

WEEE (Waste Electrical and Electronic Equipment) Statement....................................v

Chapter 1 Getting Started.....................................................................................1-1

Mainboard Specifications...................................................................................1-2

Mainboard Layout................................................................................................1-4

Packing Checklist.................................................................................................1-5

Chapter 2 Hardware Setup...................................................................................2-1

Quick Components Guide....................................................................................2-2

CPU (Central Processing Unit)............................................................................2-3

Memory.................................................................................................................2-7

Power Supply......................................................................................................2-9

Back Panel..........................................................................................................2-10

Connectors........................................................................................................2-12

Jumpers..............................................................................................................2-19

Slots....................................................................................................................2-20

Chapter 3 BIOS Setup.............................................................................................3-1

Entering Setup.....................................................................................................3-2

The Main Menu.....................................................................................................3-4

Standard CMOS Features...................................................................................3-6

Advanced BIOS Features...................................................................................3-9

Integrated Peripherals.......................................................................................3-12

Power Management Setup...............................................................................3-14

PNP/PCI Configurations.....................................................................................3-16

H/W Monitor........................................................................................................3-18

Frequency/Voltage Control...............................................................................3-19

Load Fail-Safe/Optimized Defaults..................................................................3-23

BIOS Setting Password.....................................................................................3-24

Appendix A Dual Core Center.............................................................................A-1

Activating Dual Core Center...............................................................................A-2

Main......................................................................................................................A-3

DOT(Dynamic Over Clocking).............................................................................A-5

Clock.....................................................................................................................A-6

viii

Voltage.................................................................................................................A-7

FAN Speed...........................................................................................................A-8

Temperature.........................................................................................................A-9

User Profile........................................................................................................A-10

Appendix B Realtek ALC888 Audio.....................................................................B-1

Installing the Realtek HD Audio Driver................................................................B-2

Software Configuration......................................................................................B-4

Hardware Setup................................................................................................B-19

Appendix C Intel ICH7R SATA RAID..................................................................... C-1

ICH7R Introduction...............................................................................................C-2

BIOS Configuration..............................................................................................C-3

Installing Software..............................................................................................C-9

RAID Migration Instructions...............................................................................C-15

Degraded RAID Array........................................................................................C-22

ix

Getting Started

Chapter 1

Getting Started

Thank you for choosing the P31/ G31 Neo2 Series (MS­7392 V2.X) ATX mainboard. The P31/ G31 Neo2 Series
mainboards are based on Intel® P31/ G31 & ICH7R/
ICH7 chipsets for optimal system efficiency. Designed
to fit the advanced Intel® CoreTM2 Quad, CoreTM2 Duo,
Pentium® E2XXX and Celeron® 4XX processor, the
P31/ G31 Neo2 Series deliver a high performance and
professional desktop platform solution.

1-1

MS-7392 Mainboard

Mainboard Specifications

Processor Support

- Intel® CoreTM2 Quad, CoreTM2 Duo, Pentium® E2XXX and Celeron
4XX processor in the LGA775 package
(For the latest information about CPU, please visit http://global.msi.
com.tw/index.php?func=cpuform)

Supported FSB

- 1333/ 1066/ 800 MHz

Chipset

- North Bridge: Intel® P31/ G31 chipset

- South Bridge: Intel® ICH7R/ ICH7 chipset

Memory Support

- DDR2 800/ 667 SDRAM (4GB Max)

- 4 DDR2 DIMMs (240pin/ 1.8V)
(For more information on compatible components, please visit http:/
/global.msi.com.tw/index.php?func=testreport)

LAN

- Supports PCI Express LAN 10/ 100/ 1000 Fast Ethernet by Realtek
RTL8111C/ RTL8111B (Optional)

®

®

IEEE 1394 (Optional)

- Chip integrated by VIA® VT6308P

- Transfer rate is up to 400 Mbps

Audio

- Chip integrated by Realtek® ALC888

- Flexible 8-channel audio with jack sensing

- Compliant with Azalia 1.0 Spec

- Meet Microsoft Windows Vista Premium Spec

IDE

- 1 IDE port by Intel® ICH7R/ ICH7

- Supports Ultra DMA 66/ 100 mode

- Supports PIO and Bus Master operation mode

SATA

- 4 SATA II ports by Intel® ICH7R/ ICH7

- Supports four SATA devices

- Supports storage and data transfers at up to 300 MB/ s

RAID

- Supports RAID 0/ 1/ 0+1/ 5 mode by Intel® ICH7R

1-2

Getting Started

Floppy

- 1 floppy port

- Supports 1 FDD with 360KB, 720KB, 1.2MB, 1.44MB and 2.88MB

Connectors
Back panel

- 1 PS/2 mouse port

- 1 PS/2 keyboard port

- 1 parallel port

- 1 serial port

- 1 VGA port (Optional)

- 1 1394 port (Optional)

- 1 LAN jack

- 4 USB 2.0 ports

- 6 audio jacks

On-Board Pinheaders

- 2 USB 2.0 pinheaders

- 1 CD-In pinheader

- 1 SPDIF-Out pinheader

- 1 front panel audio pinheader

- 1 chassis intrusion switch pinheader

- 1 1394 pinheader (Optional)

- 1 JTPM module connector

Slots

- 1 PCI Express x16 slot

- 2 PCI Express x1 slots

- 3 PCI slots (support 3.3V/ 5V PCI bus Interface)

Form Factor

- ATX (30.5cm X 23.6cm)

Mounting

- 6 mounting holes

1-3

MS-7392 Mainboard

(Optional)

JTPM1

Mainboard Layout

Top: Mouse
Bottom: Keyboard

Top:
Parallel Port

Bottom:
Serial Port
VGA Port (Optional)

Top: 1394 Port (Optional)
Bottom: USB Ports

Top: LAN Jack
Bottom: USB Ports

JPW1

Intel

P31/ G31

CPUFAN1

SYSFAN3

T: Line-In
M: Line-Out
B: Mic
T: RS-Out
M: CS-Out
B: SS-Out

ALC888

JAUD1

PCI_E1

PCI_E3

PCI_E2

PCI1

PCI2
PCI3

CD_IN1

SYSFAN2

JSPD1

FDD1

BATT

+

JBAT1

J1394_1

DIMM1

Intel

ICH7R/ ICH7

JCI1

VIA

VT6308P

(Optional)

IDE1

JUSB2 JUSB1 JFP1 JFP2

DIMM3

DIMM2

SATA3

SATA1

DIMM4

ATX1

SATA4

SYSFAN1

SATA2

1-4

P31/ G31 Neo2 Series

(MS-7392 V2.X) ATX Mainboard

Packing Checklist

(Optional)

Getting Started

MSI motherboard MSI Driver/ Utility CD

Power Cable SATA Cable

Standard Cable for IDE

Devices (Optional)

USB Bracket

Back IO Shield

* The pictures are for reference only and may vary from the packing contents of the
product you purchased.

User’s Guide

1-5

Hardware Setup

Chapter 2

Hardware Setup

This chapter provides you with the information about
hardware setup procedures. While doing the installation,
be careful in holding the components and follow the
installation procedures. For some components, if you
install in the wrong orientation, the components will not
work properly.

Use a grounded wrist strap before handling computer
components. Static electricity may damage the
components.

2-1

MS-7392 Mainboard

Quick Components Guide

Back Panel,

p.2-10

SYSFAN2,

p.2-13

PCIE Slots,

p.2-20

JBAT1,

p.2-19

PCI Slots,

p.2-20

JAUD1,

p.2-16

JPW1,

p.2-9

CPU,

p.2-3

CPUFAN1,

p.2-13

SYSFAN3,

p.2-13

Memory,

p.2-7

ATX1,

p.2-9

JCI1,

p.2-14

SYSFAN1,

p.2-13

SATA1~4,

p.2-13

JTPM1,

p.2-14

IDE1,

p.2-12

CD_IN1,

p.2-14

2-2

JSPD1,

p.2-17

FDD1,

p.2-12

J1394_1,

p.2-17

(Optional)

JUSB1~2,

p.2-18

JFP1~2,

p.2-15

Hardware Setup

CPU (Central Processing Unit)

This mainboard supports Intel® processor in LGA 775 package. When you are install­ing the CPU, make sure to install the cooler to prevent overheating. If you do not have
the CPU cooler, consult your dealer before turning on the computer.
(For the latest information about CPU, please visit http://global.msi.com.tw/index.
php?func=cpuform)

Important

Overheating

Overheating will seriously damage the CPU and system. Always make sure
the cooling fan can work properly to protect the CPU from overheating. Make
sure that you apply an even layer of thermal paste (or thermal tape) between
the CPU and the heatsink to enhance heat dissipation.

Replaceing the CPU

While replacing the CPU, always turn off the ATX power supply or unplug the
power supply’s power cord from the grounded outlet first to ensure the safety
of CPU.

Overclocking

This mainboard is designed to support overclocking. However, please make
sure your components are able to tolerate such abnormal setting, while doing
overclocking. Any attempt to operate beyond product specifications is not
recommended. We do not guarantee the damages or risks caused by inad­equate operation or beyond product specifications.

Introduction to LGA 775 CPU

The pin-pad side of LGA 775
CPU.

Alignment Key Alignment Key

Yellow triangle is the Pin 1 indicator

The surface of LGA 775 CPU.
Remember to apply some ther­mal paste on it for better heat
dispersion.

Yellow triangle is the Pin 1 indicator

2-3

MS-7392 Mainboard

CPU & Cooler Installation

When you are installing the CPU, make sure the CPU has a cooler attached on
the top to prevent overheating. Meanwhile, do not forget to apply some thermal

paste on CPU before installing the heat sink/cooler fan for better heat dispersion.
Follow the steps below to install the CPU & cooler correctly. Wrong installation will
cause the damage of your CPU & mainboard.

1.The CPU socket has a plastic cap

on it to protect the contact from
damage. Before you install the CPU,
always cover it to protect the socket
pin.

3.The pins of socket reveal.

2.Remove the cap from lever hinge
side (as the arrow shows).

4.Open the load lever.

Important

1. Confirm if your CPU cooler is firmly installed before turning on your system.

2. Do not touch the CPU socket pins to avoid damaging.

3. The availability of the CPU land side cover depends on your CPU packing.

2-4

Hardware Setup

5.Lift the load lever up and open the
load plate.

6.After confirming the CPU direction
for correct mating, put down the
CPU in the socket housing frame.
Be sure to grasp on the edge of
the CPU base. Note that the align­ment keys are matched.

alignment

key

7.Visually inspect if the CPU is
seated well into the socket. If not,
take out the CPU with pure vertical
motion and reinstall.

8.Cover the load plate onto the
package.

2-5

MS-7392 Mainboard

9.Press down the load lever lightly
onto the load plate, and then se­cure the lever with the hook under
retention tab.

11.Press the four hooks down to fas-

ten the cooler. Then rotate the lock­ing switch (refer to the correct di­rection marked on it) to lock the
hooks.

10. Align the holes on the mainboard
with the heatsink. Push down the
cooler until its four clips get
wedged into the holes of the
mainboard.

12.Turn over the mainboard to con­firm that the clip-ends are cor­rectly inserted.

locking

switch

Important

1. Read the CPU status in BIOS (Chapter 3).

2. Whenever CPU is not installed, always protect your CPU socket pin with the
plastic cap covered (shown in Figure 1) to avoid damaging.

3. Mainboard photos shown in this section are for demonstration of the CPU/
cooler installation only. The appearance of your mainboard may vary de­pending on the model you purchase.

2-6

Hardware Setup

Memory

These DIMM slots are used for installing memory modules.
(For more information on compatible components, please visit http://global.msi.com.
tw/index.php?func=testreport)

DDR2

240-pin, 1.8V

64x2=128 pin 56x2=112 pin

Single-Channel: All DIMMs in GREEN
Dual-Channel: Channel A in GREEN; Channel B in ORANGE

Due to chipset limitations, to enable dual channel mode or single channel mode,
installing memory modules should refer to the following table.

Memory Installation Combination
(SS : single side, DS : double side, X : none installed memory)

DIMM1 DIMM2 DIMM3 DIMM4
Combination1 DS/SS X DS/SS X
Combination2 DS/SS X X DS/SS

Dual Channel Mode

Combination3 X DS/SS DS/SS X
Combination4 X DS/SS X DS/SS
Combination5 SS SS SS SS

Combination1 DS/SS X X X
Combination2 X DS/SS X X
Combination3 X X DS/SS X
Combination4 X X X DS/SS
Combination5 SS SS X X

Single Channel Mode

Combination6 X X SS SS
Combination7 SS SS DS/SS X

Combination8 SS SS X DS/SS
Combination9 DS/SS X SS SS
Combination10 X DS/SS SS SS

2-7

MS-7392 Mainboard

Installing Memory Modules

1. The memory module has only one notch on the center and will only fit in the right
orientation.

2. Insert the memory module vertically into the DIMM slot. Then push it in until the
golden finger on the memory module is deeply inserted in the DIMM slot.

Important

You can barely see the golden finger if the memory module is properly in­serted in the DIMM slot.

3. The plastic clip at each side of the DIMM slot will automatically close.

Volt

Notch

Important

- DDR2 memory modules are not interchangeable with DDR and the DDR2
standard is not backwards compatible. You should always install DDR2
memory modules in the DDR2 DIMM slots.

- In Dual-Channel mode, make sure that you install memory modules of the
same type and density in different channel DIMM slots.

- To enable successful system boot-up, always insert the memory modules
into the DIMM1 first.

- Due to the chipset resource deployment, the system density will only be
detected up to 3+GB (not full 4GB) when each DIMM is installed with a 1GB
memory module.

2-8

Hardware Setup

Power Supply

ATX 24-Pin Power Connector: ATX1

This connector allows you to connect an ATX 24-pin power supply.
To connect the ATX 24-pin power supply, make sure the plug of the
power supply is inserted in the proper orientation and the pins are
aligned. Then push down the power supply firmly into the connector.
You may use the 20-pin ATX power supply as you like. If you’d like
to use the 20-pin ATX power supply, please plug your power sup­ply along with pin 1 & pin 13 (refer to the image at the right hand).
There is also a foolproof design on pin 11, 12, 23 & 24 to avoid
wrong installation.

Pin Definition

pin 13

pin 12

PIN SIGNAL

13 +3.3V
14 -12V
15 GND
16 PS-ON#
17 GND
18 GND
19 GND
20 Res
21 +5V
22 +5V
23 +5V
24 GND

ATX1

12

1

24

13

PIN SIGNAL

1 +3.3V
2 +3.3V
3 GND
4 +5V
5 GND
6 +5V
7 GND
8 PWR OK
9 5VSB
10 +12V
11 +12V
12 +3.3V

ATX 12V Power Connector: JPW1

This 12V power connector JPW1 is used to provide power to the CPU.

Pin Definition

3 4
1

JPW1

2

PIN SIGNAL

1 GND
2 GND
3 12V
4 12V

Important

1. Make sure that all the connectors are connected to proper ATX power
supplies to ensure stable operation of the mainboard.

2. Power supply of 350 watts (and above) is highly recommended for system
stability.

2-9

MS-7392 Mainboard

Back Panel

Mouse

Keyboard

Parallel Port

Serial Port VGA Port

1394 Port
(Optional)

USB Port

LAN Jack

Line-In

Line-Out

Mic

RS-Out

CS-Out

SS-Out

(Optional)

Mouse/Keyboard

The standard PS/2® mouse/keyboard DIN connector is for a PS/2® mouse/keyboard.

Parallel Port
A parallel port is a standard printer port that supports Enhanced Parallel Port (EPP)
and Extended Capabilities Parallel Port (ECP) mode.

Serial Port
The serial port is a 16550A high speed communications port that sends/ receives 16
bytes FIFOs. You can attach a serial mouse or other serial devices directly to the
connector.

VGA Port (Optional)
The DB15-pin female connector is provided for monitor.

1394 Port (Optional)

The IEEE1394 port on the back panel provides connection to IEEE1394 devices.

USB Port
The USB (Universal Serial Bus) port is for attaching USB devices such as keyboard,
mouse, or other USB-compatible devices.

LAN Jack

The standard RJ-45 LAN jack is for connec-

Link IndicatorActivity Indicator

tion to the Local Area Network (LAN). You
can connect a network cable to it.

LED Color LED State condition

Off LAN link is not established.

Left Orange On (steady state) LAN link is established.

On (brighter & pulsing)The computer is communicating with another computer on the LAN.

Green Off 10 Mbit/sec data rate is selected.

Right On 100 Mbit/sec data rate is selected.

Orange On 1000 Mbit/sec data rate is selected.

2-10

Hardware Setup

Audio Ports
These audio connectors are used for audio devices. You can differentiate the color
of the audio jacks for different audio sound effects.

Line-In (Blue) - Line In, is used for external CD player, tapeplayer or other

audio devices.

Line-Out (Green) - Line Out, is a connector for speakers or headphones.
Mic (Pink) - Mic, is a connector for microphones.
RS-Out (Black) - Rear-Surround Out in 4/ 5.1/ 7.1 channel mode.
CS-Out (Orange) - Center/ Subwoofer Out in 5.1/ 7.1 channel mode.
SS-Out (Gray) - Side-Surround Out 7.1 channel mode.

2-11

MS-7392 Mainboard

Connectors

Floppy Disk Drive Connector: FDD1

This connector supports 360KB, 720KB, 1.2MB, 1.44MB or 2.88MB floppy disk drive.

FDD1

IDE Connector: IDE1

This connector supports IDE hard disk drives, optical disk drives and other IDE devices.

IDE1

Important

If you install two IDE devices on the same cable, you must configure the
drives separately to master / slave mode by setting jumpers. Refer to IDE
device’s documentation supplied by the vendors for jumper setting instructions.

2-12

Hardware Setup

Serial ATA Connector: SATA1/ SATA2/ SATA3/ SATA4

This connector is a high-speed Serial ATA interface port. Each connector can con­nect to one Serial ATA device.

SATA4SATA3

SATA2SATA1

Important

Please do not fold the Serial ATA cable into 90-degree angle. Otherwise, data
loss may occur during transmission.

Fan Power Connectors: CPUFAN1/ SYSFAN1/ SYSFAN2 / SYSFAN3

The fan power connectors support system cooling fan with +12V. When connecting
the wire to the connectors, always note that the red wire is the positive and should
be connected to the +12V; the black wire is Ground and should be connected to GND.
If the mainboard has a System Hardware Monitor chipset on-board, you must use a
specially designed fan with speed sensor to take advantage of the CPU fan control.

+12V

GND

+12V

SENSOR

GND

SENSOR

SENSOR

+12V

GND

Control

SYSFAN1

CPUFAN1

SYSFAN3

SYSFAN2

Important

1. Please refer to the recommended CPU fans at processor’s official website
or consult the vendors for proper CPU cooling fan.

2. Fan cooler set with 3 or 4 pins power connector are both available for
CPUFAN1.

3. CPUFAN1 supports fan control. You can setup it in H/W Monitor of BIOS
Setup. You can install Dual Core Center utility that will automatically con­trol the CPU fan speed according to the actual CPU temperature.

2-13

MS-7392 Mainboard

Chassis Intrusion Switch Connector: JCI1

This connector connects to a 2-pin chassis switch. If the chassis is opened, the
switch will be short. The system will record this status and show a warning mes­sage on the screen. To clear the warning, you must enter the BIOS utility and clear the
record.

C
I

N

G

T

N

R

D

U

2

1

JCI1

CD-In Connector: CD_IN1

This connector is provided for external audio input.

GND

L

R

CD_IN1

TPM Module connector: JTPM1

This connector connects to a TPM (Trusted Platform Module) module. Please refer to
the TPM security platform manual for more details and usages.

13
14

JTPM1

1
2

Pin Signal Description Pin Signal Description
1 LCLK LPC clock 2 3V dual/3V_STB 3V dual or 3V standby power
3 LRST# LPC reset 4 VCC3 3.3V power
5 LAD0 LPC address & data pin0 6 SIRQ Serial IRQ
7 LAD1 LPC address & data pin1 8 VCC5 5V power
9 LAD2 LPC address & data pin2 10 KEY No pin
11 LAD3 LPC address & data pin3 12 GND Ground
13 LFRAME# LPC Frame 14 GND Ground

2-14