HP PAVILION DV4-1551DX Windows XP Driver

Please Install Netframework before others:
Net framework 2.0
http://www.microsoft.com/en-us/download/details.aspx?id=1639

Chipset
Intel Chipset Installation Utility for ICH9
Version:9.1.1.1019 A, 2.32M
Download

Audio
Install Microsoft UAA and reboot, after that install audio driver, do not skip this step.

Microsoft UAA (Universal Audio Architecture)
Version KB888111(XP, SP2)/KB835221(SP3)
Windows XP SP2: Download
Windows XP SP3: Download

Then restart, and install AUDIO Drivers:

IDT - High Definition Audio Codecs
(SP39671)Download (ftp)
SP41616 Download(ftp)
Download and install the driver(do this to extract driver files), you will get the error while installing.
Perform the below steps to fix the issue.
1. Click on Start and select Run. Now type devmgmt.msc and press enter.
2. Right click on "Audio device on High Definition Audio Bus" and click Update driver.
3. Select "Install from a list or specific location".
4. Click Next. Then select "Don't search, I will choose the driver to install".
5. Click Next and then select "Sound, video and game controller" from the list.
6. Click Next and then click Have Disk.
7. Click Browse C:\swsetup\SP39671 folder and select the .inf  file and click open and Continue with the onscreen instructions.
Manually install Audio Drivers.

GRAPHIC:
NVIDIA GeForce G 103M/ G 105M Graphics Driver (186.81 WHQL XP 32-bit)
Download

if resulting in error use modded driver below:
Download
3-step process to install:
1. Download driver, double click and select extract,
2. Download modded INF and replace original INF in extracted folder,
3. Install & reboot.

LAN/EHERNET
Realtek RTL8102E/8111C Family PCI-E Gigabit Ethernet NIC Driver
Download

WIRELESS:
If you have broadcom wireless:
Broadcom: Download

If you have intel wireless
Intel: Download
(requires windows installer 3.0 installed first)

BROADBAND
Qualcomm Mobile Broadband Drivers - Gobi1000
Download

HP Connection Manager
Download

HP Connection Manager 3.0 APN Patch
Download

BLUETOOTH:
HP Integrated Module with Bluetooth Wireless Technology
Download

HP Wireless Assitant:
Download 

MODEM:
High-Definition Audio (HDA) Modem Driver
Download

HP Wireless Assistant
Download (direct)
Download (HP)

HP Quicklaunch Button
Download (direct)

CARD READER
JMB38X Card Reader Host Controller
Download

WEBCAM
Cyberlink youcam software 2.0
Download

INFRARED
ENE-CIR Reciever:
Download
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