MSI 945p Neo2 H Manual

2-16  
MS-7176 ATX Mainboard
Serial ATAII Connectors controlled by Intel ICH7/ICH7R:
SATA1~SATA4 The SouthBridge of this mainboard is Intel ICH7/ICH7R which supports four
serial ATA connectors SATA1~SATA4. SATA1~SATA4 are dual high-speed Serial ATAII interface ports. Each supports
Serial ATAII data rates of 300MB/s. Both connectors are fully compliant with Serial
ATA 1.0 and 2.0 specifications. Each Serial ATA connector can connect to 1 hard disk
device.
PINSIGNAL PINSIGNAL
1 GND 2TXP
3 TXN 4GND
5 RXN...

2-17 Hardware SetupCD-In Connector: JCD1
The connector is for CD-ROM audio connector.
Front Panel Connectors: JFP1 / JFP2
The mainboard provides two front panel connectors for electrical connection
to the front panel switches and LEDs. JFP1 is compliant with Intel®
 Front Panel I/O
Connectivity Design Guide.
1
2PINSIGNALDESCRIPTION
1HD_LED_PHard disk LED pull-up
2FP PWR/SLPMSG LED pull-up
3HD_LED_NHard disk active LED
4FP PWR/SLPMSG LED pull-up
5RST_SW_NReset Switch low reference pull-down to GND...

2-18 MS-7176 ATX MainboardFront Panel Audio Connector: JAUD1
The F_AUDIO front panel audio connector allows you to connect to the front
panel audio and is compliant with Intel®
 Front Panel I/O Connectivity Design Guide. Front USB Connectors: JUSB1 / JUSB2
The mainboard provides two standard USB 2.0 pin headers JUSB4, 5 / JUSB6,
7. USB 2.0 technology increases data transfer rate up to a maximum throughput of
480Mbps, which is 40 times faster than USB 1.1, and is ideal for connecting high-
speed USB...

2-19 Hardware SetupIrDA Infrared Module Header: JIR1
The connector allows you to connect to IrDA Infrared module. You must con-
figure the setting through the BIOS setup to use the IR function. JIR1 is compliant with
Intel®
 Front Panel I/O Connectivity Design Guide.PinSignal
1NC
2NC
3VCC5
4GND
5IRTX
6IRRX Pin  Definition
JIR1
65
21Serial Port Connector: JCOM1
The mainboard offers one 9-pin male DIN connector COM 1 (on the rear panel), and
one optional serial port JCOM1. Both are 16550A high speed...

2-20 MS-7176 ATX Mainboard
D-Bracket™ 2 Connector: JDB1
The mainboard comes with a JDB1 connector for you to connect to D-Bracket™
2. D-Bracket™ 2 is a USB Bracket that supports both USB1.1 & 2.0 spec. It integrates
four LEDs and allows users to identify system problem through 16 various combina-
tions of LED signals.PinSignal
1         DBG1 (high for green color)
2         DBR1 (high for red color)
3         DBG2 (high for green color)
4         DBR2 (high for red color)
5         DBG3 (high for green...

2-21 Hardware SetupDescription
System Power ON
The D-LED will hang here if the processor is damaged or
not installed properly.
Early Chipset Initialization
Memory Detection Test
Testing onboard memory size. The D-LED will hang if the
memory module is damaged or not installed properly. 1                   2
3                   4D-Bracket™ 2Decompressing BIOS image to RAM for fast booting.
Initializing Keyboard Controller.
Testing VGA BIOS
This will start writing VGA sign-on message to the screen.Processor...

2-22 MS-7176 ATX MainboardTesting Base and Extended Memory
Testing base memory from 240K to 640K and extended
memory above 1MB using various patterns.
Assign Resources to all ISA.
Initializing Hard Drive Controller
This will initialize IDE drive and controller.D-Bracket™ 2DescriptionInitializing Floppy Drive Controller
This will initialize Floppy Drive and controller.
Boot Attempt
This will set low stack and boot via INT 19h.
Operating System BootingJLPC1 Pin Definition
PINSIGNALPINSIGNAL
1LCLK2Key (no...

2-23 Hardware SetupThe motherboard provides the following jumpers for you to set the computer’s
function. This section will explain how to change your motherboard’s function through
the use of jumpers.
Clear CMOS Jumper: JBAT1
There is a CMOS RAM on board that has a power supply from external battery
to keep the system configuration data. With the CMOS RAM, the system can automati-
cally boot OS every time it is turned on. If you want to clear the system configuration,
use the JBAT1 (Clear CMOS) Jumper...

2-24 MS-7176 ATX MainboardSlots
PCI Express Slots (optional)
The PCI Express slots,  as a high-bandwidth, low pin count, serial, intercon-
nect technology, support Intel highest performance desktop platforms utilizing the
Intel Pentium 4 processor with HT Technology.
PCI Express architecture provides a high performance I/O infrastructure for
Desktop Platforms with transfer rates starting at 2.5 Giga transfers per second over
a PCI Express x1 lane for Gigabit Ethernet, TV Tuners, 1394 controllers, and...

2-25 Hardware SetupPCI Interrupt Request Routing
The IRQ, acronym of interrupt request line and pronounced I-R-Q, are hard-
ware lines over which devices can send interrupt signals to the microprocessor. The
PCI IRQ pins are typically connected to the PCI bus INT A# ~ INT D# pins as follows:
Order 1Order 2Order 3Order 4
PCI Slot 1INT A#INT B#INT C#INT D#
PCI Slot 2INT B#INT C#INT D#INT A#
PCI Slot 3INT C#INT D#INT A#INT B#
PCI Slot 4INT D#INT A#INT B#INT C# PCI SlotsPCI (Peripheral Component...