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)
The chipset driver provides stable communication between the CPU, RAM, and PCIe expansion slots. Intel Corporation
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.
Enables crystal-clear, high-definition audio playback through the rear and front headphone jacks. HP Support Community
Intel Chipset Device Software (INF Update Utility)
Before downloading drivers, confirm your hardware profile to ensure compatibility with your operating system: Specification Micro-ATX (uATX) CPU Socket