HP Small Form Factor PC dx7400 System Board, System Setup and Boot, IRQ, IRQ, Menu, Heading, Heading, System Function, System Function, Computer Setup Menu, Option / Description

System Board

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

JCOM2	Second serial port connector	P24	Front I/O USB connector
J20	PCI slot	P61	First SATA connector
J31	PCI Express Slot 1	P62	Second SATA connector
J32	PCI Express Slot 2	P63	Third SATA connector
J41	x16 PCI Express slot for graphics	P64	Fourth SATA connector
P1	Power supply connector (24-pin)	P150	Media card reader
P3	Power supply connector (4-pin)	SW50	Clear CMOS switch
P5	Power switch/LED connector	XBT1	Battery
P6	Speaker connector	DIMM A1	Memory slot
P8	Heatsink fan	DIMM A2	Memory slot
P9	Chassis fan	DIMM B1	Memory slot
P10	Floppy drive connector	DIMM B2	Memory slot
P23	Front audio connector	XU1	Primary processor socket

System Setup and Boot

Basic system information regarding system information, setup, power management, hardware, and passwords is maintained in the Setup Utility held in the system ROM. The Setup Utility is accessed by pressing the F10 key when prompted (on screen) to do so during the boot sequence. If the screen prompt opportunity is missed, a restart will be necessary.

Computer Setup Menu

Heading	Option / Description
System	Lists the following main system specifications:
Information	•	Product Name		•	Memory Size
	•	SKU Number		•	Integrated MAC
	•	Processor Type		•	UUID
	•	Processor Speed		•	System Serial #
	•	System ROM		•	Asset Tracking Number
	•	Cache Size
Main	Date		Allows you to set system date.
	(mm/dd/yyyy)
	Time		Allows you to set system time.
	(hh/mm/ss)
	SATA Port 1,		Allows you to run HDD self-tests, auto detect HDD size and
	2, 3, and 4		head, set extended IDE drive details, set access mode, and
			view information about the device(s)
	Onboard FDC		Disable/enable
	Controller
	Drive A		Allows you to set to None or 1.4M, 3.5 in.
	Halt On		Allows you to set POST error behavior to: all errors, no
			errors, all but keyboard, all but diskette, or all but diskette/
			keyboard.
	POST Delay		Allows you to set POST delay to 0, 5, 10, 15, or 30 seconds
Advanced	Execute Dis-		Disable/enable hardware DEP function.
	able Bit
	MAX DVMT		Specify size of DVMT/system memory to allocate for video
	Allocation		memory. Settings: 64MB, 128MB, 224 MB.
	Init Display		Allows you to set primary display device to PCI slot, OnChip
	First		VGA, or PCIEx.
	Onboard HD		Disable/enable
	Audio
	OnChip USB		Disable/enable
	Controller
	USB Legacy		Disable/enable (USB keyboard, mouse, and flash media).
	Support
	Onboard LAN		Disable/enable
	Onboard LAN		Disable/enable
	Boot ROM
	Onboard		Allows you to select: Disabled, 3F8/IRQ4, 2F8/IRQ3, 3E8/
	Serial Port 1		IRQ4, or 2E8/IRQ3.
	or 2
	Onboard Par-		Allows you to select: Disabled, 378/IRQ7, 278/IRQ5, or
	allel Port		3BC/IRQ7.

Computer Setup Menu (Continued)

Heading	Option / Description
Advanced	Parallel Port	Allows you to select: SPP, EPP, ECP, ECP + EPP, or Normal.
(continued)	Mode
	After AC	Allows you to select power loss behavior to On, Off, or Last
	Power Loss	state.
	Wake on PCI	Disable/enable
	Device from
	S5
	RTC Alarm	Disable/enable
	Resume
	Date (of	If RTC Alarm is enabled, allows you to select day of month to
	Month)	resumption (0 = every day).
	Resume Time	If RTC Alarm enabled, allows you to select time to resume.
	(hh:mm:ss)
Boot	Device Boot	Allows you to restrict a device from booting the unit. May
	Disabling	disable: none, USB, Internal ODD, Internal FDD, or
		USB+ODD+FDD
	F9 Boot Menu	Disable/enable
	F10 Setup	Disable/enable
	Prompting
	F11 Recovery	Disable/enable
	Prompting
	F12 Boot	Disable/enable
	from LAN
	Prompting
	Removable	Allows you to specify the order of attached removable
	Device Boot	devices. The first drive in the order has priority and is recog-
	Seq.	nized as drive A.
	Hard Disk	Allows you to specify the order of attached hard drive devices
	Boot Priority	(USB HDD, USB2 Drive Key, or USB flash media). The first
		attached drive in the order has priority and is recognized as
		drive C.
	Optical Drive	Allows you to specify the order in which attached optical
	Boot Seq.	drives (including USB ODD) are checked for a bootable oper-
		ating system image.
	Network Boot	Allows you to specify the order in which network devices
	Seq.	(including UP NIC cards) are checked for a bootable operat-
		ing system image.
	First, Second,	Allows you to specify which devices will boot in which
	Third, and	sequence or to disable any of the four: removable, hard disk,
	Fourth Boot	CDROM, network, or disabled.
	Device
	Set Supervisor	Allows you to establish a password to enter Computer Setup
	Password
	Set User Pass-	Allows you to establish a password to enter the computer
	word	(must have Supervisor password established)
	Security	Allows you to set security option to Setup or System so that
	Option	the password is required each time the system boots or only
		when entering Computer Setup.
	BIOS Write	Enable to prevent BIOS from being updated.
	Protection
PC Health	System Fan	Disable/enable
	Fail Check
	Smart Fan	Disable/enable
	Function
	Current CPU	View only
	Temperature
	Current Sys-	View only
	tem Temp
	Current CPU	View only
	Fan Speed
	Current Sys-	View only
	tem Fan
	Speed
	Vcore	View only
	12V	View only
	5V	View only
	VBAT (V)	View only
	5VSB (V)	View only
Exit	Save & Exit	Allows you to save current settings and exit Computer Setup.
	Setup
	Exit Without	Allows you to exit Computer Setup without saving changes.
	Saving
	Load Opti-	Allows you to reset Computer Setup to factory defaults.
	mized defaults

System Hardware Interrupts

IRQ	System Function	IRQ	System Function
0	Timer Interrupt	8	Real-Time Clock
1	Keyboard	9	Unused
2	Interrupt Controller Cascade	10	Unused, available for PCI
3	Serial Port (COM B)	11	Unused, available for PCI
4	Serial Port (COM A)	12	Mouse
5	Unused, available for PCI	13	Coprocessor
6	Diskette Drive	14	Primary ATA (IDE) Controller
7	Parallel Port (LPT 1)	15	Secondary ATA (IDE) Controller

dx7400 Illustrated Parts & Service Map, MT Chassis 459782-001 page 3