Iwill P4G Driver Download

11 Ratings

Supported Models

P4G Driver

AGERE PCI to USB Enhanced Host Controller Driver

HUB Support for USB 2.0 Driver

Intel (R) USB Enhanced Host Controller (ICH4) Driver

NEC PCI to USB Enhanced Host Controller B0 Driver

NEC PCI to USB Enhanced Host Controller B1 Driver

USB 2.0 Root Hub Driver



Agere Systems




Supported Operating Systems

Windows XP

File Name


5.1.3538.1 (2001-08-10) via .inf

Uploader Notes

ICH4 USB driver

Uploaded By

sundar (DG Staff Member) on 29-Apr-2005

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
ICH4_usb_xp/usbehci.sys 24.9 KB 28 Jan 2002
ICH4_usb_xp/readxp.pdf 5.1 KB 26 Feb 2002
ICH4_usb_xp/usbhub.sys 59.2 KB 28 Jan 2002
ICH4_usb_xp/usb2x.inf 8.2 KB 11 Dec 2001
ICH4_usb_xp/Symbols.pri/retail/sys/usbhub.pdb 338.9 KB 28 Jan 2002
ICH4_usb_xp/Symbols.pri/retail/sys/usbehci.pdb 175.1 KB 28 Jan 2002
ICH4_usb_xp/Symbols.pri/retail/sys/usbport.pdb 519.2 KB 28 Jan 2002
ICH4_usb_xp/Symbols.pri/retail/dll/hccoin.pdb 91.1 KB 28 Jan 2002
ICH4_usb_xp/usbport.sys 141.9 KB 28 Jan 2002
ICH4_usb_xp/hccoin.dll 11.4 KB 28 Jan 2002
ICH4_usb_xp/Symbols/retail/sys/usbehci.sym 11.2 KB 28 Jan 2002
ICH4_usb_xp/Symbols/retail/sys/usbhub.pdb 93.2 KB 28 Jan 2002
ICH4_usb_xp/Symbols/retail/sys/usbhub.sym 12.6 KB 28 Jan 2002
ICH4_usb_xp/Symbols/retail/sys/usbehci.pdb 52.2 KB 28 Jan 2002
ICH4_usb_xp/Symbols/retail/sys/usbport.sym 19.3 KB 28 Jan 2002
ICH4_usb_xp/Symbols/retail/sys/usbport.pdb 117.8 KB 28 Jan 2002
ICH4_usb_xp/Symbols/retail/dll/hccoin.pdb 74.8 KB 28 Jan 2002

How to Update P4G Device Drivers Quickly & Easily

Step 1 - Download Your Driver

To get the P4G driver, click the green download button above. After you complete your download, move on to Step 2.

If the driver listed is not the right version or operating system, search our driver archive for the correct version. Enter Iwill P4G into the search box above and then submit. In the results, choose the best match for your PC and operating system.

Tech Tip: If you are having trouble deciding which is the right driver, try the Iwill Driver Update Utility. It is a software utility which automatically finds and downloads the right driver.

Step 2 - Install Your Driver

Once you have downloaded your new driver, you'll need to install it. In Windows, use a built-in utility called Device Manager, which allows you to see all of the devices recognized by your system, and the drivers associated with them.

How to Open Device Manager

  • In Windows 11, Windows 10 & Windows 8.1, right-click the Start menu and select Device Manager

  • In Windows 8, swipe up from the bottom, or right-click anywhere on the desktop and choose "All Apps" -> swipe or scroll right and choose "Control Panel" (under Windows System section) -> Hardware and Sound -> Device Manager

  • In Windows 7, click Start -> Control Panel -> Hardware and Sound -> Device Manager

  • In Windows Vista, click Start -> Control Panel -> System and Maintenance -> Device Manager

  • In Windows XP, click Start -> Control Panel -> Performance and Maintenance -> System -> Hardware tab -> Device Manager button

How to Install a driver from Device Manager

  1. Locate the device and model that is having the issue and double-click on it to open the Properties dialog box.

  2. Select the Driver tab.

  3. Click the Update Driver button and follow the instructions.

In most cases, you will need to reboot your computer in order for the driver update to take effect.

Tech Tip: Driver downloads and updates come in a variety of file formats with different file extensions. For example, you may have downloaded an EXE, INF, ZIP, or SYS file. Each file type has a slighty different installation procedure to follow.

For more help, visit our Driver Support Page for step-by-step videos on how to install drivers for every file type.

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