HP Mini dc7900 tower System Board, System Setup and Boot, IRQ, IRQ, Menu, Heading, Heading, System Function, System Function, Option/Description, Computer Setup Menu

System Board

System Board Connectors and Jumpers (component location may vary)

E49	Password header	P125	Hood sensor connector
J9	RJ-45 over dual USB	P126	Flying parallel port header
J10	Quad stack USB	P150	Media reader connector
J20	PCI slot 1	P151	ReadyBoost connector
J21	PCI slot 2	P23	Front audio connector
J22	PCI slot 3	P24	Front USB connector
J31	PCIe X1	P52	Second serial port
J41	PCIe X16, slot 1	P60	SATA0
J42	PCIe X16, slot 2	P61	SATA1
J64	Display port connector	P62	SATA2
J69	VGA connector	P63	SATA3
J78	Double stack audio connector	P64	SATA4
P1	Main power connector	SW50	Clear CMOS button
P3	CPU power connector	XBT1	Real-time-clock battery socket
P5	Power button/LED connector	XMM1	DIMM 1
P6	Internal speaker connector	XMM2	DIMM 2
P9	Front fan connector	XMM3	DIMM 3
P10	Diskette drive connector	XMM4	DIMM 4
P11	Rear fan connector	XU1	Processor socket
P124	Hood lock connector

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. For more information about Setup Utilities refer to the Service Reference Guide.

Computer Setup Menu

Heading	Option/Description
File	System Information - Lists the following main system specifications:
	•	Product name	•	System BIOS
	•	SKU number (some models)	•	Chassis serial number
	•	Processor type/speed/stepping	•	Asset tracking number
	•	Cache size (L1/L2)	•	ME firmware version
	•	Memory size/speed/channels	•	Management node
	•	Integrated MAC Address
	About - Displays copyright notice.
	Set Time and Date - Allows you to set system time and date.
	Flash System ROM - Allows you to select a drive containing a new BIOS.
	Replicated Setup - Save to Rmv Media and Restore from Rmv Media
	Default Setup
	• Save Current Settings as Default
	• Restore Factory Settings as Default
	Apply Defaults and Exit - Applies the selected default settings and clears
	any established passwords.
	Ignore Changes and Exit - Exits Computer setup without saving changes.
	Save Changes and Exit - Saves changes to system configuration or default
	settings and exits Computer Setup.
Storage	Device Configuration - Lists all installed BIOS-controlled storage devices.
	The following options are available:
	• Diskette Type(Legacy Diskettes only)-3.5” 1.44 MB and 5.25” 1.2 MB
	•	Drive Emulation
	• Emulation Type - ATAPI Zip drive, hard disk, legacy diskette, CD-ROM
		drive, and ATAPI LS-120 drive
	•	Multisector Transfers
	•	Translation Mode
	•	Translation Parameters
	•	SATA Default Values
	Storage Options
	•	Removable Media Boot
	•	Legacy Diskette Write
	•	SATA Emulation
	•	Max eSATA Speed
	DPS Self-Test - Allows you to execute self-tests on ATA hard drives.
	Boot Order - Allows you to specify boot order.
	• Shortcut to Temporarily Override Boot Order

Computer Setup Menu (Continued)

Heading	Option / Description
Security	Setup Password - Allows you to set and enable the setup (Administrator)
	password.
	Power-On Password - Allows you to set and enable power-on password.
	Password Options - When any password exists allows you to lock legacy
	resources, enable/disable network server mode, specify password require-
	ment for warm boot, and allows you to enable/disable Setup Browse Mode.
	Smart Cover (some models) - Allows you to lock/unlock cover lock and set
	status of cover removal sensor.
	Device Security (some models) - Enables/disables all I/O ports, audio, net-
	work controllers, SMBus controller, and embedded security devices.
	USB Security - Allows you to set Device Available/Device Hidden for front
	USB ports 3-6, rear USB ports 7-12, internal USB ports 1-2.
	Network Service Boot - Enables/disables boot from OS on a server.
	System IDs - Allows you to set Asset tag, ownership tag, Chassis serial
	number, UUID, and keyboard locale setting.
	DriveLock Security - Allows you to assign/modify a hard drive password for
	added security.
	System Security (some models) - Allows you to enable/disable:
	•	Data Execution Prevention
	•	Virtualization Technology
	• Virtualization Technology Directed I/O
	•	Trusted Execution Technology
	• Embedded Security Device Support
	• OS management of Embedded Security Device through OS
	• Smart Card BIOS Password Support
	• PAVP (Protect Audio Video Path) (some models)
	Setup Security Level - Provides method to allow users limited access to
	change specified setup options without knowing Setup password.
Power	OS Power Management - Allows you to enable/disable Runtime Power
	Management, Idle Power Savings, ACPI S3 Hard Disk Reset, ACPI S3 PS2
	Mouse Wakeup, USB Wake on Device Insertion (some models), Unique
	Sleep State Blink Rates.
	Hardware Power Management - Allows you to enable/disable SATA bus
	power management.
	Thermal - Allows you to control minimum permitted fan idle speed.
Advanced	Power-On Options - Allows you to set:
	• POST mode - QuickBoot, FullBoot, or FullBoot every 1-30 days.
	•	POST messages - Enable/disable
	• MEBx Setup prompt - Enable/disable or hidden/displayed
	•	F9 prompt - Enable/disable
	•	F10 prompt - Enable/disable
	•	F12 prompt - Enable/disable
	• Factory Recovery Boot Support - Enable/disable
	• Option ROM prompt - Enable/disable
	• WOL After Power Loss - Enable/disable
	• Remote wakeup boot source - Remote server/local hard drive
	• After Power Loss - Off/on/previous state
	• POST delay - None, 5, 10, 15, or 20 seconds
	• Limit CPUID Maximum value to 3
	Execute Memory Test (some models) -Restarts computer and executes
	POST memory test.
	BIOS Power-On - Allows you to set the computer to turn on at a preset time.
	Onboard Devices - Allows you to set resources or disable onboard system
	devices.
	PCI Devices - Lists installed PCI devices with their IRQ settings and allows
	you to reconfigure IRQ or disable devices.
	PCI VGA Configuration - Allows you to specify which VGA controller will
	be used when multiple video adapters are available.
	Bus Options (some models) - Allows you to enable/disable PCI SERR#
	Generation and PCI VGA palette snooping.

Device Options - Allows you to set:

•Printer Mode - Bi-Directional, EPP & ECP, Output Only

•Num Lock state at power-on - off/on

•S5 Wake on LAN - enable/disable

•Processor cache - enable/disable

•Integrated video - enable/disable

•Multi-Processor - enable/disable

•Internal speaker - enable/disable

•Monitor Tracking - enable/disable

•NIC PXE Option ROM Download - enable/disable

Management Devices - Only displayed in Advanced menu when BIOS detects multiple management options.

Management Operations - Allows you to set:

•MEBx Setup Prompt - enable/disable

•Remote Help Prompt - enable/disable

•Remote Help Lockout - enable/disable

•Remote Help Connection Timeout - 5, 10, 15, 20, 30, 40, 50, 60, 120, 180, 240 seconds

•SOL Character Echo - enable/disable

•SOL Terminal Emulation Mode - enable/disable

•SOL Keyboard (enable/disable

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

dc7900 Illustrated Parts & Service Map, CMT Chassis 506593-002 page 3