What is SI3112r?

SI3112r.sys is a Windows driver. A driver is a small software program that allows your computer to communicate with hardware or connected devices. This means that a driver has direct access to the internals of the operating system, hardware etc. The free file information forum can help you determine if SI3112r.sys is a Windows system file or if it belongs to an application that you can trust.

Run a free scan to check for SI3112r drivers in need of updating

SI3112r.sys file information

The process known as Serial ATA RAID miniport driver (beta version) or Serial ATA RAID miniport driver (beta) belongs to software Silicon Image SiI (version 3112 SATARaid Controller) or SiI 3112 SATARaid controller by Silicon Image (

Description: SI3112r.sys is not essential for the Windows OS and causes relatively few problems. The file SI3112r.sys is located in the C:\Windows\System32\drivers folder. Known file sizes on Windows 10/8/7/XP are 102,528 bytes (16% of all occurrences), 89,610 bytes and 4 more variants. 
The driver can be started or stopped from Services in the Control Panel or by other programs. The program is not visible. The service has no detailed description. The file is not a Windows core file. SI3112r.sys appears to be a compressed file. Therefore the technical security rating is 35% dangerous, however you should also read the user reviews.

Recommended: Identify SI3112r.sys related errors

Important: Some malware disguises itself as SI3112r.sys, particularly when not located in the C:\Windows\System32\drivers folder. Therefore, you should check the SI3112r.sys process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

Die Datei si3112r.sys gehört zum Silicon Image Raid Treiber und führt zum kompletten Systemabsturz, wenn Sie bei vorhandenem Raid Controller gelöscht wird.
Ohne ein update von SI3112r.sys geht bei mir gar nichts mehr wenn S-ATA an ist!
  Nico P.   (further information)

Summary: Average user rating of SI3112r.sys: based on 3 votes with 2 user comments. 3 users think SI3112r.sys is essential for Windows or an installed application.

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Best practices for resolving SI3112r issues

A clean and tidy computer is the key requirement for avoiding problems with SI3112r. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the SI3112r.sys process on your computer, the following programs have proven to be helpful: Security Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

SI3112r.sys [all]