Since official links are dead, you must rely on driver archives. Search these terms in your preferred search engine:
The HSP56 is a legacy 56K modem/sound card combination used in older PCs. It provides dial-up modem functionality and basic audio I/O for DOS/Windows 9x-era systems. Modern operating systems typically do not include native drivers for this device.
Assuming you have downloaded a driver pack (e.g., Conexant_HSP56_XP_5.1.2.05.exe), follow this process:
Extract the driver: Do not run the EXE as a standard installer unless it is an OEM package. Instead, extract its contents using WinRAR or 7-Zip to a folder named C:\Drivers\HSP56.
Open Device Manager: Find the yellow "Multimedia Audio Controller."
Update Driver:
Ignore warnings: Windows will warn "This driver is not digitally signed." Click Continue Anyway.
Reboot. After restart, you should see "Conexant HSP56 Audio Device" under Sound, Video, and Game Controllers. hsp56 sound card driver
First, a critical clarification: The HSP56 is NOT primarily a sound card. It is a PCI modem chip (commonly the Conexant/Rockwell HSP56 MR or SmartHDA series). However, many OEM computers (e.g., older Dells, HPs, Compaqs) bundled this modem on a combination card or motherboard that also included basic audio (AC'97 or HD Audio).
If you are looking for an "HSP56 sound card driver," you likely have one of these situations:
In the late 1990s and early 2000s, the world of PC audio was a much different place. Before the dominance of Realtek’s HD Audio and Creative’s Sound Blaster series, there were dozens of lesser-known codecs that powered the sound on budget and mid-range computers. One such name that often appears in dusty driver archives and vintage computing forums is the HSP56.
If you have stumbled upon a device labeled “HSP56” in your Windows Device Manager, or you are trying to revive an old Pentium III or Athlon system, you have likely entered a frustrating rabbit hole of missing drivers. What exactly is the HSP56? Why are the drivers so difficult to find? And most importantly, how do you get it working on modern or retro operating systems?
This article covers everything you need to know about the HSP56 sound card driver, including identification, safe download sources, step-by-step installation for Windows 98/XP, and modern workarounds.
If you can provide the FCC ID or the text printed on the main black chip, I can point you to the exact file you need.
The HSP56 is a legacy audio chip, often found on older PCTel or C-Media modems and sound cards from the late 90s and early 2000s. Since this hardware is quite old, modern versions of Windows (10/11) may not have native drivers, and you will likely need to use compatibility mode or specialized driver archives. 1. Automatic Update (Easiest First) Since official links are dead, you must rely
Try letting Windows find the driver for you. Even for legacy hardware, the Microsoft Support database sometimes holds generic drivers. Right-click the Start button and select Device Manager. Expand the Sound, video and game controllers section.
Look for a device with a yellow exclamation mark or "HSP56".
Right-click it and choose Update driver, then select Search automatically for drivers. 2. Manual Identification & Download
If Windows fails, you will need to identify the exact chipset manufacturer (usually PCTel or C-Media). Identify the Hardware ID:
In Device Manager, right-click the HSP56 device and select Properties.
Go to the Details tab and select Hardware Ids from the dropdown.
Look for the VEN (Vendor) and DEV (Device) codes (e.g., VEN_134D&DEV_7891). Modem:
Sourcing Drivers:Because the original manufacturers no longer host these files, you can search for your specific Hardware ID on community-vetted sites like DriverGuide or the Internet Archive. 3. Installation in Compatibility Mode
Drivers for the HSP56 were primarily made for Windows 98, ME, or XP. To install them on a newer system: Right-click the downloaded .exe installer. Select Properties > Compatibility.
Check Run this program in compatibility mode for and select Windows XP (Service Pack 3). Run the installer as an Administrator. 4. Troubleshooting No Sound If the driver installs but you still have no audio:
Check the Troubleshooter: Go to Settings > System > Troubleshoot and run the Playing Audio utility.
Reinstall via Scan: Uninstall the device in Device Manager, then click Scan for hardware changes to force Windows to re-detect the chip with the new driver.
Are you trying to get this working on Windows 10/11, or are you restoring an older machine running XP or 98? Update drivers through Device Manager in Windows
In a traditional sound card (e.g., Sound Blaster 16), dedicated Digital Signal Processors (DSPs) on the card handle all audio mixing, effects, and sample rate conversion. This offloads the work from the main CPU.
HSP flips this model. An HSP device like the HSP56 is essentially a "dumb" codec. It only contains the Digital-to-Analog Converter (DAC) and Analog-to-Digital Converter (ADC). The CPU itself performs all the audio calculations using software drivers. Consequently, an HSP56 driver is not just a translator—it is the actual sound processing engine.