The MCS9990 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. This version of "MCS9990_Win7_Vista.zip" is rated (5 out of 5 stars) based on 276 downloads and 9 reviews. The uploader reports that this update will work successfully on PCs running Windows 7 and Windows Vista. The total disk space used for this update is 3.3 MB.
MCS9990
MCS9990 PCI-Express Multifunction-IO Controller
Moschip OpenHCD USB Host Controller
Moschip USB Enhanced Host Controller
Spark PCIe-ISA Communication Port
Spark PCIe-ISA Parallel Port
Sprk GPIO/OTG/ISA-Controller
Windows 7, Windows 7 (64 bit), Windows Vista, Windows Vista (64 bit)
1.0.0.2 (11-Aug-2010)
PCI and PCI Express Connectivity
Single Lane Multifunction PCI Express to USB2.0 Host Controller
Karthika (DG Staff Member) on 4-Apr-2011
PCI\VEN_9710&DEV_9990&CC_0C0310
PCI\VEN_9710&DEV_9990&CC_0C0320
PCI\VEN_9710&DEV_9990&SUBSYS_3001A000&REV_00
PCI\VEN_9710&DEV_9990&SUBSYS_3002A000&REV_00
PCI\VEN_9710&DEV_9990&SUBSYS_3003A000&REV_00
PCI\VEN_9710&DEV_9990&SUBSYS_3004A000&REV_00
To get the MCS9990 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 MCS9990 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.
Open a tool called Device Manager.
Use Device Manager to put the new driver on your computer.
Turn your computer off.
Turn your computer back on.
Now your new driver is ready!
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 |
|---|---|---|
| MCS9990_Win7_Vista/MCS9990_WinVista_UM_Ver1.0.pdf | 1.8 MB | 22 Jul 2009 |
| MCS9990_Win7_Vista/Win7_Vista32Bit/SERPARGPIO/MOSCHIP_SerParSetup.exe | 266.2 KB | 28 May 2010 |
| MCS9990_Win7_Vista/Win7_Vista32Bit/SERPARGPIO/MOSCHIP_SerParUninst.exe | 606.2 KB | 28 May 2010 |
| MCS9990_Win7_Vista/Win7_Vista32Bit/SERPARGPIO/PciGPIO.inf | 3.9 KB | 31 May 2010 |
| MCS9990_Win7_Vista/Win7_Vista32Bit/SERPARGPIO/SprKSerLang.ini | 22.7 KB | 19 Feb 2009 |
| MCS9990_Win7_Vista/Win7_Vista32Bit/SERPARGPIO/SprkMf.inf | 6.8 KB | 31 May 2010 |
| MCS9990_Win7_Vista/Win7_Vista32Bit/SERPARGPIO/SprkPort.inf | 6.5 KB | 31 May 2010 |
| MCS9990_Win7_Vista/Win7_Vista32Bit/SERPARGPIO/X86/PciGpio.sys | 33.8 KB | 4 Dec 2008 |
| MCS9990_Win7_Vista/Win7_Vista32Bit/SERPARGPIO/X86/SprkPar.sys | 136.7 KB | 22 Aug 2008 |
| MCS9990_Win7_Vista/Win7_Vista32Bit/SERPARGPIO/X86/SprkSerial.sys | 66.0 KB | 22 Aug 2008 |
| MCS9990_Win7_Vista/Win7_Vista32Bit/UsbHostFilter/MOSCHIP_UsbSetup.exe | 262.1 KB | 10 May 2010 |
| MCS9990_Win7_Vista/Win7_Vista32Bit/UsbHostFilter/MOSCHIP_UsbUninst.exe | 598.0 KB | 10 May 2010 |
| MCS9990_Win7_Vista/Win7_Vista32Bit/UsbHostFilter/UsbLang.ini | 22.7 KB | 19 Feb 2009 |
| MCS9990_Win7_Vista/Win7_Vista32Bit/UsbHostFilter/mosflt.inf | 3.1 KB | 31 May 2010 |
| MCS9990_Win7_Vista/Win7_Vista32Bit/UsbHostFilter/mosflt.sys | 7.2 KB | 9 Dec 2009 |
| MCS9990_Win7_Vista/Win7_Vista64Bit/SERPARGPIO/AMD64/PciGpio.sys | 36.4 KB | 4 Dec 2008 |
| MCS9990_Win7_Vista/Win7_Vista64Bit/SERPARGPIO/AMD64/SprkPar.sys | 159.7 KB | 22 Aug 2008 |
| MCS9990_Win7_Vista/Win7_Vista64Bit/SERPARGPIO/AMD64/SprkSerial.sys | 72.2 KB | 22 Aug 2008 |
| MCS9990_Win7_Vista/Win7_Vista64Bit/SERPARGPIO/MOSCHIP_SerParSetup.exe | 364.0 KB | 28 May 2010 |
| MCS9990_Win7_Vista/Win7_Vista64Bit/SERPARGPIO/MOSCHIP_SerParUninst.exe | 336.4 KB | 28 May 2010 |
| MCS9990_Win7_Vista/Win7_Vista64Bit/SERPARGPIO/PciGPIO.inf | 3.9 KB | 31 May 2010 |
| MCS9990_Win7_Vista/Win7_Vista64Bit/SERPARGPIO/SprKSerLang.ini | 22.7 KB | 19 Feb 2009 |
| MCS9990_Win7_Vista/Win7_Vista64Bit/SERPARGPIO/SprkMf.inf | 6.8 KB | 31 May 2010 |
| MCS9990_Win7_Vista/Win7_Vista64Bit/SERPARGPIO/SprkPort.inf | 6.5 KB | 31 May 2010 |
| MCS9990_Win7_Vista/Win7_Vista64Bit/UsbHostFilter/MOSCHIP_UsbSetup.exe | 357.4 KB | 10 May 2010 |
| MCS9990_Win7_Vista/Win7_Vista64Bit/UsbHostFilter/MOSCHIP_UsbUninst.exe | 333.8 KB | 10 May 2010 |
| MCS9990_Win7_Vista/Win7_Vista64Bit/UsbHostFilter/UsbLang.ini | 22.7 KB | 19 Feb 2009 |
| MCS9990_Win7_Vista/Win7_Vista64Bit/UsbHostFilter/mosflt.inf | 3.1 KB | 31 May 2010 |
| MCS9990_Win7_Vista/Win7_Vista64Bit/UsbHostFilter/mosflt.sys | 9.2 KB | 9 Dec 2009 |