The MCS9901 is a network device manufactured by MosChip. Issues like weak Wi-Fi signal, slow DNS lookup, duplicate IP addresses, slow network and excessive CPU usage can be solved by updating this driver. Visitors have downloaded this file "MCS9901_XP.zip" 77 times with an aggregate rating of 5 out of 5 stars based on 2 reviews. The uploader reports that this update will work successfully on PCs running Windows XP. The total disk space used for this update is 1.8 MB.
MCS9901
High-Speed PCIe Serial Port
PCI-Express Multi-IO Controller
PCIe ECP Parallel Port
PCIe-IO Bridge
PCIe-ISA Communication Port
PCIe-ISA Parallel Port
Windows XP (64 bit)
1.0.0.10 (22-Jan-2010)
PCI and PCI Express Connectivity
Single lane PCI Express (PCIe) based Peripheral Controller
Dilipkumar (DG Staff Member) on 12-Apr-2010
PCI\VEN_9710&DEV_9901&SUBSYS_1000A000&REV_00
PCI\VEN_9710&DEV_9901&SUBSYS_2000A000&REV_00
PCI\VEN_9710&DEV_9901&SUBSYS_3001A000&REV_00
PCI\VEN_9710&DEV_9901&SUBSYS_3002A000&REV_00
PCI\VEN_9710&DEV_9901&SUBSYS_3003A000&REV_00
PCI\VEN_9710&DEV_9901&SUBSYS_3004A000&REV_00
PCI\VEN_9710&DEV_9901&SUBSYS_3011A000&REV_00
PCI\VEN_9710&DEV_9902&SUBSYS_1000A000&REV_00
To get the MCS9901 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 MosChip MCS9901 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 MosChip Driver Update Utility. It is a software utility which automatically finds and downloads the right driver.
To find the newest driver, you may need to visit the MosChip website. Most major device manufacturers update their drivers regularly.
After downloading your new driver, it's time to install it. For Windows users, the built-in Device Manager is your go-to tool for managing system devices and drivers. Here's how to use it:
Right-click the Start button to open the Quick Access menu.
Select "Device Manager" from the list of options.
In the Device Manager window, locate the device that needs updating.
Right-click on the device name and choose "Update driver" from the context menu.
Follow the on-screen instructions to complete the installation process.
Once the installation is complete, restart your computer to ensure the new driver is properly integrated and functional.
This simple process helps keep your system running smoothly and maintains compatibility with your hardware components.
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.
The following files are found inside the driver download file.
Name | Size | Date |
---|---|---|
MCS9901_XP/AMD64/ISASerial.sys | 82.9 KB | 29 Jan 2008 |
MCS9901_XP/AMD64/MOSCHIP_PCIeUninst.exe | 49.2 KB | 29 Jan 2008 |
MCS9901_XP/AMD64/PCIeCoInst.dll | 12.8 KB | 29 Jan 2008 |
MCS9901_XP/AMD64/PCIePorts.dll | 77.3 KB | 29 Jan 2008 |
MCS9901_XP/AMD64/PPorts.sys | 137.2 KB | 29 Jan 2008 |
MCS9901_XP/AMD64/SPorts.sys | 138.2 KB | 29 Jan 2008 |
MCS9901_XP/MCS9901_WinXP_UM_Ver0.3.pdf | 1.4 MB | 19 Feb 2008 |
MCS9901_XP/PCIeMF.inf | 11.3 KB | 29 Jan 2008 |
MCS9901_XP/PCIeNull.inf | 1.9 KB | 29 Jan 2008 |
MCS9901_XP/PCIePorts.inf | 17.1 KB | 29 Jan 2008 |
MCS9901_XP/PCIeSetup.exe | 266.2 KB | 29 Jan 2008 |
MCS9901_XP/X86/ISASerial.sys | 67.1 KB | 29 Jan 2008 |
MCS9901_XP/X86/MOSCHIP_PCIeUninst.exe | 49.2 KB | 29 Jan 2008 |
MCS9901_XP/X86/PCIeCoInst.dll | 9.2 KB | 29 Jan 2008 |
MCS9901_XP/X86/PCIePorts.dll | 63.5 KB | 29 Jan 2008 |
MCS9901_XP/X86/PPorts.sys | 83.5 KB | 29 Jan 2008 |
MCS9901_XP/X86/SPorts.sys | 117.2 KB | 29 Jan 2008 |