libibumad32.dll - Analyze and How to Fix Errors

★★★★☆ Verified File (27.08.2026)

⚠️ Important Notice: Discover details about libibumad32.dll, its functions, and common issues in this brief guide. Manually replacing system libraries can brick future Windows updates or cause critical system failures.

Architecture:	32-bit (x86)	Compatible with 32 and 64-bit Windows
Creation date	09.05.2012 15:01:35
File version	3.1.10307.0
Antivirus scan	✅ Clean	No viruses detected.
Digital signature	🟡 Not signed	Signature missing. The file may have been modified.
Hash Integrity	✅ MD5: Verified	File Hash protection is missing.
File size	10.5 kb.	10752 bytes.

Hashes:

MD5: 358528a5c50d1847fb9d89cadc0d8774 ✅
SHA-1: 08d12dffa27ba56f4dbbaf05708865404e3431c8
SHA-256: 67e12bceaad05c0e7a8d4651a11109cee80691b58eae615c3be5aae597828924
SHA-512: 23f3b53e47dfda81bf3c149e7000ea19f820588564da596331864a865589b1b903629495e6257296b7e078525ddad4c4012de98a2db900ef8b84ffa380eda3b9

✅ This file is compatible with 32-bit Windows and can run on ✅ 64-bit Windows (via the WOW64 subsystem).

libibumad32.dll File Information and Error Fixes

Description

The libibumad32.dll file is a 32-bit Dynamic Link Library (DLL) associated with the OpenFabrics Alliance (OFA) InfiniBand user-mode management library (libibumad). It provides low-level user-mode access to InfiniBand management datagrams (MADs) and is typically used in High-Performance Computing (HPC) environments, enterprise networking, or software that utilizes Remote Direct Memory Access (RDMA) network protocols.

Standard File Location

On 32-bit Windows systems: C:\Windows\System32\
On 64-bit Windows systems (running 32-bit application compatibility): C:\Windows\SysWOW64\
Application Directory: It can also reside directly in the installation folder of the software that requires it (e.g., specific cluster management tools or network drivers).

How to Fix libibumad32.dll Errors Without Downloading

Downloading DLL files from third-party websites is unsafe and can introduce malware. Use these native methods to fix the error:

1. Reinstall the Associated Networking Software or Driver

Because this file belongs to InfiniBand/RDMA architectures, it is usually installed via specific network drivers or software packages.

Open Settings (Win + I) > Apps > Installed apps.
Look for software related to Mellanox, NVIDIA Networking, WinOF, OpenFabrics, or cluster management tools.
Click Uninstall or Modify/Repair if available.
Reinstall the official software package using the original installer.

2. Run System File Checker (SFC) and DISM

If the file was part of a registered system subsystem, Windows can automatically repair it.

Right-click the Start button and select Terminal (Admin) or Command Prompt (Admin).
Type DISM.exe /Online /Cleanup-image /Restorehealth and press Enter. Wait for it to finish.
Type sfc /scannow and press Enter.
Restart your computer.

3. Restore the File from the Recycle Bin

If you accidentally deleted the file, check your Recycle Bin.

Open the Recycle Bin.
Search for libibumad32.dll.
Right-click the file and select Restore.

4. Undo Recent Changes via System Restore

If the error started happening recently, you can revert Windows back to a state when it worked.

Press the Windows Key, type Create a restore point, and press Enter.
Click System Restore...
Choose a restore point date prior to when the error first appeared.
Follow the prompts to finish the recovery process.

📊 Diagnostics Tool: Verify Your `libibumad32.dll` File

Worried that the file on your PC has been modified by malware? Drop it into the form below. Our script will verify its file size, cryptographic hash (MD5/SHA-1), and check for a valid Microsoft digital signature.

Connected files:
msvcrt.dll
├── KERNEL32.dll
├── WS2 32.dll
├── winmad.dll
├── libibverbs.dll
└── libibumad.dll