HP dx5150 LED, F10, F10, F10, F10, FAN, SW2, IRQ, IRQ, LED, Red, Red, Red, Red, Red, Red, Red, Red, ATX1, AUD1, BAT1, COM1, CPU1, F_P1, FDD1, IDE1, JPW1, PCI1, PCI2

System Board Connectors and Jumpers (position of some untitled components may vary in location)

Keyboard Diagnostic LEDs, PS/2 Keyboards Only

LED	Color	LED Activity	State/Message
Num Lock	Green	On	ROMPaq diskette or ROMPaq CD not present,
			is bad, or drive not ready.
Caps Lock	Green	On	Enter password.
Num, Caps,	Green	Blink on in sequence, one at a Keyboard locked in network mode.
Scroll Lock		time—N, C, SL
Num, Caps,	Green	On	Boot Block ROM Flash successful. Turn power
Scroll Lock			off, then on to reboot.

* Diagnostic lights do not flash on USB keyboards.Clearing CMOS Using Computer Setup

The computer's configuration (CMOS) stores password information and information about the computer’s configuration. To clear and reset the configuration, perform the following procedure:

✎This is the preferred method for clearing CMOS. However, if you cannot access Computer Setup, refer to the next section for instructions on using the CMOS switch to clear CMOS.

1.Turn on or restart the computer. If you are in Microsoft Windows, click Start > Shut Down > Restart.

2.As soon as the computer is turned on, press and hold the F10 key until you enter Computer Setup.

✎If you do not press F10 at the appropriate time, you must restart the computer and press and hold F10 until you enter Computer Setup.

3.	Use the arrow keys to select Load Optimized Defaults, then press Enter.
4.	To apply and save changes, press F10, or select Save & Exit Setup and press Enter.

ATX1	Main power connector (24 pin)
AUD1	Front I/O panel audio
AUX_IN1	Aux audio in
BAT1	Battery
CD_IN1	CD audio in
CHASSIS_ System fan
FAN
COM1	Flying serial port
CPU_FAN	Processor fan
CPU1	Processor socket
F_P1	Hood sensor
FDD1	Diskette drive
IDE1	IDE drive connector
J4	Boot block (default = off)
J5	Password enable (default = off)
JPW1	4-pin aux power connector

JTPM1	TPM security module
JUSB1	Front USB connector
PCI1	PCI socket 1
PCI2	PCI socket 2
PCIE1X1	PCI Express x1 connector
PCIE16X1	PCI Express x16 connector
SATA1	SATA drive
SATA2	SATA drive
SPKR	Internal audio
SW2	CMOS switch
XMM1	Memory socket
XMM2	Memory socket
XMM3	Memory socket
XMM4	Memory socket

Clearing CMOS Using the CMOS Switch

The computer's configuration (CMOS) may occasionally be corrupted. If it is, it is necessary to clear the CMOS memory using switch SW2.

To clear and reset the configuration, perform the following procedure:1.Prepare the computer for disassembly.

ÄCAUTION: You must disconnect the power cord from the power source before sliding the Clear CMOS

switch (NOTE: All LEDs on the board should be OFF). The CMOS switch will not clear CMOS if the power cord is connected.

2.Remove the access panel.3.Slide the CMOS button located on the system board and hold it for 5 seconds.4.Replace the access panel.

5.Turn the computer on and run F10 Computer Setup (Setup Utility) to reconfigure the system.

Disabling or Clearing the Power-On and Setup Passwords

1.	Turn off the computer and any external devices, and disconnect the power cord from the power outlet.
2.	With the power cord disconnected, press the power button again to drain any residual power from the computer.
3.	Remove the access panel.
4.	Locate the header and green jumper labeled J5.

System Hardware Interrupts

IRQ	System Function			IRQ	System Function
0	Reserved, Timer Interrupt			12	Onboard Mouse Port
1	Reserved, Keyboard Buffer Full Coprocessor			13	Reserved, Numeric Port
4	Serial Port (COM 1)			14	Primary (IDE) Controller
5	PCI System Management			15	Secondary (IDE) Controller
6	Diskette Drive Controller			19	Integrated Graphics (GPU)
8	Real-Time Clock Controller			21	Integrated Audio/USB Host
9	ACPI Compliant System			22	Network Interface Card (NIC)
Computer Diagnostic LEDs (on front of computer)
LED		Color	LED/Beep Activity		State/Message
Power		Green	On		(S0) Computer on
Power		Green	1 blink every 2 seconds		(S1) Suspend Mode
Power		Green	1 blink every 2 seconds		(S3) Suspend to RAM
Power		Red*	2 blinks and beeps 1 second		CPU thermal shutdown
			apart
Power		Red*	3 blinks and beeps 1 second		CPU not installed
			apart
Power		Red*	4 blinks and beeps 1 second		Power supply overload.
			apart
Power		Red*	5 blinks and beeps 1 second		Pre-video memory error.
			apart
Power		Red*	6 blinks and beeps 1 second		Pre-video graphics card error
			apart
Power		Red*	7 blinks 1 and beeps second		System board failure (detected prior to video)
			apart
Power		Red*	8 blinks and beeps 1 second		Invalid ROM checksum
			apart
Power		Red*	9 blinks and beeps 1 second		System power on but is unable to boot.
			apart
Hard Drive		Green	Blinking		Hard drive activity

*Blinking codes are repeated after a two second pause. Beeps stop after fifth iteration, but LEDs continue until problem is resolved.

5.	Remove the jumper from pins 1 and 2. Place the jumper over either pin 1 or pin 2, but not both, to avoid losing it.
6.	Replace the access panel.
7.	Plug in the computer and turn on power. Allow the operating system to start, which clears current passwords and
	disables the password features.
8.	To re-enable the password features, repeat steps 1-3, then replace the jumper on pins 1 and 2.
9.	Repeat steps 6-8, then establish new passwords in Computer Setup.
	Refer to the Computer Setup (F10 Setup) instructions to establish new passwords.

Computer Setup (F10) Utility Features (not all features may be available)

System	Displays
Information
Standard	Date	PATA IDE Channel 1 Master	Floppy 3 Mode Support
CMOS	Time	PATA IDE Channel 2 Master	Halt On
	PATA IDE Channel 0 Master	Drive A	POST Delay
Features
	Removable Device Boot	Quick Power On Self Test	Boot Up NumLock Status
Advanced	Priority	First Boot Device	APIC Function
	Hard Disk Boot Priority	Second Boot Device	MPS Version Control for OS
BIOS
	CD-ROM Boot Priority	Third Boot Device	HDD S.M.A.R.T. Capability
Features
	Network Boot Priority	Fourth Boot Device	BIOS Write Protection
	MBR Security
Advanced	Internal Video Mode	UMA Frame Buffer Size	Auto Detect PCI Clk
Chipset	AGP Aperture Size	Video Display Devices	Spread Spectrum
Features
Integrated	South OnChip IDE Device	OnChip USB Controller	Onboard Parallel Port
	South OnChip PCI Device	Front Panel USB Port	Parallel Port Mode
Peripherals	Init Display First	Onboard FDC Controller	ECP Mode Use DMA
	Surroundview	Onboard Serial Port
Power	ACPI Function	PowerOn by PCI Card	Date (of Month)
Management	ACPI Suspend Type	AMD Cool’n’Quiet	Resume Time
	After AC Power Loss	RTC Alarm Resume
Setup
PnP/PCI	Reset Configuration Data	IRQ Resource	Assign IRQ for VGA
Configuration	Resources Controlled By	PCI/VGA Palette Snoop	Assign IRQ for USB
PC Health	System Information	Set Supervisor Password	Save & Exit Setup
Status	Load Optimized Defaults	Set User Password	Exit Without Saving