Before downloading drivers, confirm your hardware profile to ensure compatibility with your operating system: Specification Micro-ATX (uATX) CPU Socket
Navigate to the Official HP Support Page and search for HP Compaq dx7400 Microtower . Alternatively, use standard Windows Update utilities on Windows 7 and Windows 10, which automatically configure the ICH9 southbridge. B. Network / LAN Driver (Broadcom BCM5786) This driver activates the onboard Gigabit Ethernet port. Vendor: Broadcom Supported OS: Windows XP, Vista, 7, 8, and 10.
Download the Broadcom NetXtreme Gigabit Ethernet driver from the HP Software and Drivers portal or let Windows Update install the built-in driver. C. Audio Driver (Realtek ALC888/ALC662)
Download the MSI MS-7352 Ver 1.0 Motherboard Drivers: High-Quality Support Guide