Intel PX875P warranty Front Panel Indicator SW/LED、PWRLED、SPEAKER, Pcbeep

Hard Driver

PWRLED

PX875P PRO/ PX875P

Front Panel Indicator: SW/LED、PWRLED、SPEAKER

PC_BEEP 1

NC 2

Ground 3

+5V 4

F RO N

PCI5

PCI4

U 21

PCI3

3COM LAN

PCI2

PCI1

650

W83627HF ALC

Winbond

AUXFAN

SOU ND

CPUFAN

U8

USB /LAN

K B/MS

SPDIFIrDA

21

1

1

1

TAUDIO

21

BIOS

PRT/C

C D -

OM

IN

1

Socket 478

SPEAKER

+ 1

- 3

	21
	USB 2
	21
	U SB3
	910	CHA
	1
SPEAKE	1 P
R 1	WRLED2 1	FD C
SW/LED	10
	9

2 10 1 9 USB 4

	Int el IC H5	U19
SATA1	SATA2
	1	BAT
	1	1
	JP1 C ASE
	OPEN

Intel 82875P U12

A GP

ATX_12V

DIM M1

DIM M2

DIM M3

DIM M4

ID E2 IDE1 ATX PWR

LED

Reset

Button

	1 2
HD LED (+)	Power LED (+)	Power
HD LED (-)	Power LED (-)	LED
Reset Control (-)	Power Button (+)	Power-on
Reset Control (+)	Power Button (-)	Button
NC	NC

9 10

SW/LED

HD LED (Hard Drive LED Header)

This header can be attached to an LED on the front panel of a computer case. The LED will flicker during disk activity. This disk activity only applies to those IDE drives directly attached to the system board.

RST SW (Reset Switch Header)

This header can be attached to a momentary SPST switch. This switch is normally left open. When closed it will cause the mainboard to reset and run the POST (Power On Self Test).

ACPI-LED (2-pin Power LED Header)

The mainboard provides two power LED header. If there is a 2-pin power LED cable on the front panel of a computer case. You can attach it to the 2-pin power LED header. The LED will illuminate while the computer is powered on.

PWR SW (Power on Switch Header)

This header can be attached to a front panel power switch. The switch must pull the Power Button pin to ground for at least 50 ms to signal the power supply to switch on or off (the time required is due to internal debounce circuitry on the system board). At least two seconds must pass before the power supply will recognize another on/off signal.

PWR-LED (3-Pin Power LED Header)

The mainboard provides two power LED header. If there is a 3-pin power LED cable on the front panel of a computer case. You can attach it to the 3-pin power LED header.

SPEAKER (Speaker Header)

A front panel speaker can be connected to this header. When you boot your computer, the speaker sounds a short “beep”. If there is something wrong during the Power On Self-Test, the speaker sounds “irregular beep” to warning you.

15