HP Pavilion Dv4 2100 Entertainment Notebook Pc Series Manual

Specifications
Maintenance and Service Guide6–5
DVD±RW SuperMulti DL Drive with LightScribe specifications
Applicable discRead:Write:
 CD-DA, CD+(E)G, CD-MIDI, 
CD-TEXT, CD-ROM, CD-ROM 
XA, MIXED MODE CD, CD-I, 
CD-I Bridge (Photo-CD, Video 
CD), Multisession CD 
(Photo-CD, CD-EXTRA, 
Portfolio, CD-R, CD-RW), 
CD-R, CD-RW, DVD-ROM 
(DVD-5, DVD-9, DVD-10, 
DVD-18), DVD-R, DVD-RW, 
DVD+R, DVD+RW, DVD-RAMCD-R, CD-RW, DVD+R, 
DVD+RW, DVD-R, DVD-RW, 
DVD-RAM, LightScribe
Interface SATA
Access timeCDDVD...

6–6Maintenance and Service Guide
Specifications
System DMA specifications
HardwareDMA System function 
DMA0Reserve 
DMA1Reserve 
DMA2Reserve 
DMA3Reserve 
DMA4Direct memory access controller 
DMA5Reserve
DMA6Reserve 
DMA7Reserve 

Specifications
Maintenance and Service Guide6–7
System interrupt specifications
Hardware IRQSystem function
IRQ1Standard 101/102-key keyboard or Microsoft Natural PS/2 Keyboard with HP 
IRQ4ENE CIR Receiver
IRQ12Alps Pointing-device(2-way) for 14-In Wide LCD
IRQ13Numeric data processor
IRQ16High Definition Audio Controller
IRQ16PCI standard PCI-to-PCI bridge
IRQ16Standard OpenHCD USB Host Controller
IRQ16Standard OpenHCD USB Host Controller
IRQ17PCI standard PCI-to-PCI bridge
IRQ17Standard Enhanced PCI...

6–8Maintenance and Service Guide
Specifications
System I/O address specifications
I/O address (hex)System function (shipping configuration)
000 - 00FDirect memory access controller
010 - 01FMotherboard resources
020 - 021Programmable interrupt controller
02E - 02FMotherboard resources
040 - 043System timer
060 - 060Standard 101/102-key keyboard or Microsoft Natural PS/2 Keyboard with HP 
061 - 061System speaker
062 - 062Microsoft ACPI-Compliant Embedded controller
064 - 064Standard 101/102-key keyboard...

Specifications
Maintenance and Service Guide6–9
I/O address (hex)System function (shipping configuration)
3000 - 6FFFPCI standard PCI-to-PCI bridge
7000 - 7FFFPCI standard PCI-to-PCI bridge
8010 - 801FStandard AHCI 1.0 Serial ATA Controller
8030 - 8037Standard AHCI 1.0 Serial ATA Controller
8038 - 803FStandard AHCI 1.0 Serial ATA Controller
8048 - 804BStandard AHCI 1.0 Serial ATA Controller
804C - 804FStandard AHCI 1.0 Serial ATA Controller
FD60 - FD63ENE CIR Receiver 

Maintenance and Service Guide7–1
7
Backup and recovery
Overview
Recovery after a system failure is as complete as your most current backup. HP recommends creating recovery 
discs immediately after software setup. As you add new software and data files, continue to back up your system on 
a regular basis to maintain a reasonably current backup.
Tools provided by the operating system and HP Recovery Manager software are designed to help you with the 
following tasks for safeguarding your information and...

7–2 Maintenance and Service Guide
Backup and recovery
Creating recovery discs
HP recommends creating recovery discs to be sure that you can restore your system to its original factory state if 
you experience serious system failure or instability. Create these discs after setting up the computer for the first 
time.
Handle these discs carefully and keep them in a safe place. The software allows the creation of only one set of 
recovery discs.
✎If the computer does not include an internal optical drive,...

Backup and recovery
Maintenance and Service Guide7–3
Backing up your information
As you add new software and data files, back up your system on a regular basis to maintain a reasonably current 
backup. Back up your system at the following times:
■At regularly scheduled times
✎Set reminders to back up your information periodically.
■Before the computer is repaired or restored
■Before you add or modify hardware or software
When backing up:
■Create system restore points using the Windows System Restore...

7–4 Maintenance and Service Guide
Backup and recovery
Using Windows Backup and Restore
✎Be sure that the computer is connected to AC power before starting the backup process.
✎The backup process might take over an hour, depending on file size and the speed of the computer.
To create a backup using Windows Backup and Restore:
1. Select Start > All Programs > Maintenance > Backup and Restore.
2. Follow the on-screen instructions to set up and create a backup.
✎Windows includes the User Account Control...

Backup and recovery
Maintenance and Service Guide7–5
To create a system restore point
To create a system restore point:
1. Select Start > Control Panel > System and Security > System.
2. In the left pane, click System Protection.
3. Click the System Protection tab.
4. Under Protection Settings, select the disk for which you want to create a restore point.
5. Click Create.
6. Follow the on-screen instructions.
Restore to a previous date and time
To revert to a restore point (created at a previous date and...