The MEGABOOK M645 is an audio device manufactured by MSI. This driver fixes problems with no sound or static or distorted sound, and can unlock advanced features of your audio device. This driver - "Realtek_AC97_Audio_NB.zip" - has been downloaded 72 times and is rated 3 out of 5 stars based on 8 reviews. It has been installed successfully by our users on PCs running Windows XP. The total disk space used for this update is 31.6 MB.
MEGABOOK M645
Realtek AC'97 Audio
Realtek AC'97 Audio for Intel Audio Controller
Realtek AC'97 Audio for SiS Audio Controller
Realtek AC'97 Audio for VIA Audio Controller
Realtek AC'97 Audio for VIA686/8231 Audio Controller
Realtek AC'97 Audio for VIA8233 Audio Controller
Realtek AC97 Audio
Windows XP, Windows XP (64 bit), Windows 2000
Realtek_AC97_Audio_NB.zip (31.6 MB)
5.10.0.5930 (2001-03-17) via .inf
5.10.00.5930 (2005-09-22) via .inf
MEGABOOK M645
M Series
Realtek AC97 Audio Driver
Realtek AC'97 Sound System Software
• Driver Version: 5.10.0.5930
• Support OS: Win2000/WinME/WinXP(WDM driver)
krishnamoorthy (DG Staff Member) on 11-Nov-2006
See all MSI MEGABOOK M645 ratings and reviews
HDAUDIO\FUNC_01&VEN_10EC&DEV_0888&SUBSYS_1019E619&REV_1000
PCI\VEN_1002&DEV_4341&SUBSYS_001714C0
PCI\VEN_1002&DEV_4341&SUBSYS_001D14C0
PCI\VEN_1002&DEV_4341&SUBSYS_00301462
PCI\VEN_1002&DEV_4341&SUBSYS_00321462
PCI\VEN_1002&DEV_4341&SUBSYS_FF001179
PCI\VEN_1002&DEV_4341&SUBSYS_FF011179
PCI\VEN_1002&DEV_4341&SUBSYS_FF101179
HDAUDIO\FUNC_01&VEN_10EC&DEV_0888
HDAUDIO\FUNC_01&VEN_10EC&DEV_0888&REV_1000
To get the MEGABOOK M645 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 MSI MEGABOOK M645 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 MSI 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 MSI 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 |
|---|---|---|
| Realtek_ALC_A377/ALCXDEV.EXE | 31.4 KB | 23 Dec 2005 |
| Realtek_ALC_A377/AlcUpd64.exe | 465.4 KB | 23 Dec 2005 |
| Realtek_ALC_A377/Ap/AVRACK.INI | 164 bytes | 23 Dec 2005 |
| Realtek_ALC_A377/Ap/AvRack2.exe | 794.6 KB | 23 Dec 2005 |
| Realtek_ALC_A377/Ap/Classic.dll | 1.8 MB | 23 Dec 2005 |
| Realtek_ALC_A377/Ap/MPIE4STD.EXE | 1.6 MB | 23 Dec 2005 |
| Realtek_ALC_A377/Ap/Mpstd.exe | 3.8 MB | 23 Dec 2005 |
| Realtek_ALC_A377/Ap/RtlRack.exe | 3.6 MB | 23 Dec 2005 |
| Realtek_ALC_A377/ChCfg.exe | 41.0 KB | 23 Dec 2005 |
| Realtek_ALC_A377/GETDXVER.EXE | 40.4 KB | 23 Dec 2005 |
| Realtek_ALC_A377/README.TXT | 22.6 KB | 23 Dec 2005 |
| Realtek_ALC_A377/SetCDfmt.exe | 23.6 KB | 23 Dec 2005 |
| Realtek_ALC_A377/SetupEx.ini | 136 bytes | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/ALSNDMGR.WAV | 141.0 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/ALSndMgr.cpl | 18.8 MB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcwdm.cat | 336.1 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcwdm.inf | 27.2 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcwdm0.cat | 206.4 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcwdm0.inf | 62.5 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcwdm1.inf | 62.2 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcwdm10.inf | 29.8 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcwdm11.inf | 30.6 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcwdm12.inf | 48.9 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcwdm13.inf | 50.1 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcwdm14.inf | 25.4 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcwdm15.inf | 23.4 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcwdm16.inf | 39.7 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcwdm17.inf | 27.7 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcwdm18.inf | 49.5 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcwdm19.inf | 31.9 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcwdm2.inf | 63.4 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcwdm3.inf | 31.2 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcwdm4.inf | 33.1 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcwdm5.inf | 25.9 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcwdm6.inf | 30.4 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcwdm7.inf | 24.2 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcwdm8.inf | 30.8 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcwdm9.inf | 41.7 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcxau.inf | 26.4 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcxau0.inf | 61.8 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcxau1.inf | 61.1 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcxau10.inf | 38.7 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcxau11.inf | 26.0 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcxau12.inf | 48.5 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcxau13.inf | 50.3 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcxau14.inf | 29.1 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcxau15.inf | 28.6 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcxau16.inf | 29.8 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcxau17.inf | 24.7 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcxau18.inf | 22.6 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcxau19.inf | 25.1 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcxau2.inf | 62.6 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcxau20.inf | 28.4 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcxau21.inf | 25.3 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcxau22.inf | 41.0 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcxau23.inf | 30.1 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcxau24.inf | 32.3 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcxau25.inf | 30.4 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcxau26.inf | 38.9 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcxau27.inf | 31.1 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcxau3.inf | 27.4 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcxau4.inf | 48.7 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcxau5.inf | 26.9 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcxau6.inf | 30.8 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcxau7.inf | 23.3 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcxau8.inf | 30.5 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcxau9.inf | 30.2 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcxwdm.cat | 449.7 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/Alcxwdm0.cat | 206.0 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/CPLUtl64.exe | 111.6 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/RTLCPL.exe | 10.5 MB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/RtlCPAPI.dll | 157.2 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/SoundMan.exe | 90.1 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/alcwdm64.sys | 3.1 MB | 23 Dec 2005 |
| Realtek_ALC_A377/WDM/alcxwdm.sys | 3.7 MB | 23 Dec 2005 |
| Realtek_ALC_A377/Win95/ALCX95.DRV | 142.1 KB | 23 Dec 2005 |
| Realtek_ALC_A377/Win95/ALCX95.INI | 1.1 KB | 23 Dec 2005 |
| Realtek_ALC_A377/Win95/ALSWWT.DRV | 14.9 KB | 23 Dec 2005 |
| Realtek_ALC_A377/Win95/ALSWWT16.DLL | 86.9 KB | 23 Dec 2005 |
| Realtek_ALC_A377/Win95/SWWTAC97.DAT | 247.2 KB | 23 Dec 2005 |
| Realtek_ALC_A377/Win95/SWWTAC97.TON | 3.1 MB | 23 Dec 2005 |
| Realtek_ALC_A377/Win95/VALCX95.INF | 6.0 KB | 23 Dec 2005 |
| Realtek_ALC_A377/Win95/VALCX95.VXD | 97.5 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WinNT4/ALCXNT.DLL | 43.1 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WinNT4/ALCXNT.SYS | 209.7 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WinNT4/ALSWWTNT.DAT | 247.2 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WinNT4/ALSWWTNT.TON | 3.1 MB | 23 Dec 2005 |
| Realtek_ALC_A377/WinNT4/Alswwtnt.dll | 23.0 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WinNT4/Alswwtnt.sys | 115.2 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WinNT4/MMDRV.DLL | 17.4 KB | 23 Dec 2005 |
| Realtek_ALC_A377/WinNT4/Oemsetup.inf | 640 bytes | 23 Dec 2005 |
| Realtek_ALC_A377/WinNT4/SoundMan.exe | 155.1 KB | 23 Dec 2005 |
| Realtek_ALC_A377/alcchkid.exe | 110.6 KB | 23 Dec 2005 |
| Realtek_ALC_A377/alcrmv.exe | 213.0 KB | 23 Dec 2005 |
| Realtek_ALC_A377/alcrmv64.exe | 306.2 KB | 23 Dec 2005 |
| Realtek_ALC_A377/alcrmv9x.exe | 127.0 KB | 23 Dec 2005 |
| Realtek_ALC_A377/alcupd.exe | 307.2 KB | 23 Dec 2005 |
| Realtek_ALC_A377/data1.cab | 2.3 MB | 23 Dec 2005 |
| Realtek_ALC_A377/data1.cab/_Support_Build_Generated_Support_Files/FontData.ini | 39 bytes | 25 Jun 2015 |
| Realtek_ALC_A377/data1.cab/_Support_Chinese_(Simplified)_Files/_IsRes.dll | 335.9 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data1.cab/_Support_Chinese_(Traditional)_Files/_IsRes.dll | 340.0 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data1.cab/_Support_Czech_Files/_IsRes.dll | 389.1 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data1.cab/_Support_Danish_Files/_IsRes.dll | 393.2 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data1.cab/_Support_Dutch_Files/_IsRes.dll | 397.3 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data1.cab/_Support_English_Files/_IsRes.dll | 385.0 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data1.cab/_Support_Finnish_Files/_IsRes.dll | 389.1 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data1.cab/_Support_French_(Standard)_Files/_IsRes.dll | 405.5 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data1.cab/_Support_German_Files/_IsRes.dll | 401.4 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data1.cab/_Support_Greek_Files/_IsRes.dll | 401.4 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data1.cab/_Support_Italian_Files/_IsRes.dll | 397.3 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data1.cab/_Support_Japanese_Files/_IsRes.dll | 356.4 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data1.cab/_Support_Korean_Files/_IsRes.dll | 352.3 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data1.cab/_Support_Language_Independent_OS_Independent_Files/license.txt | 255 bytes | 25 Jun 2015 |
| Realtek_ALC_A377/data1.cab/_Support_Misc_Support_Files/corecomp.ini | 65.5 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data1.cab/_Support_Non-SelfRegistering/default.pal | 1.2 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data1.cab/_Support_Non-SelfRegistering/isrt.dll | 426.0 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data1.cab/_Support_Norwegian_Files/_IsRes.dll | 389.1 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data1.cab/_Support_Polish_Files/_IsRes.dll | 393.2 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data1.cab/_Support_Portuguese_(Brazilian)_Files/_IsRes.dll | 397.3 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data1.cab/_Support_Portuguese_(Standard)_Files/_IsRes.dll | 401.4 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data1.cab/_Support_Russian_Files/_IsRes.dll | 389.1 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data1.cab/_Support_Spanish_Files/_IsRes.dll | 401.4 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data1.cab/_Support_Swedish_Files/_IsRes.dll | 389.1 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data1.cab/_Support_Thai_Files/_IsRes.dll | 389.1 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data1.cab/_Support_Turkish_Files/_IsRes.dll | 389.1 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data2.cab | 512 bytes | 23 Dec 2005 |
| Realtek_ALC_A377/data2.cab/_Support_Build_Generated_Support_Files/FontData.ini | 39 bytes | 25 Jun 2015 |
| Realtek_ALC_A377/data2.cab/_Support_Chinese_(Simplified)_Files/_IsRes.dll | 335.9 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data2.cab/_Support_Chinese_(Traditional)_Files/_IsRes.dll | 340.0 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data2.cab/_Support_Czech_Files/_IsRes.dll | 389.1 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data2.cab/_Support_Danish_Files/_IsRes.dll | 393.2 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data2.cab/_Support_Dutch_Files/_IsRes.dll | 397.3 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data2.cab/_Support_English_Files/_IsRes.dll | 385.0 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data2.cab/_Support_Finnish_Files/_IsRes.dll | 389.1 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data2.cab/_Support_French_(Standard)_Files/_IsRes.dll | 405.5 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data2.cab/_Support_German_Files/_IsRes.dll | 401.4 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data2.cab/_Support_Greek_Files/_IsRes.dll | 401.4 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data2.cab/_Support_Italian_Files/_IsRes.dll | 397.3 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data2.cab/_Support_Japanese_Files/_IsRes.dll | 356.4 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data2.cab/_Support_Korean_Files/_IsRes.dll | 352.3 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data2.cab/_Support_Language_Independent_OS_Independent_Files/license.txt | 255 bytes | 25 Jun 2015 |
| Realtek_ALC_A377/data2.cab/_Support_Misc_Support_Files/corecomp.ini | 65.5 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data2.cab/_Support_Non-SelfRegistering/default.pal | 1.2 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data2.cab/_Support_Non-SelfRegistering/isrt.dll | 426.0 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data2.cab/_Support_Norwegian_Files/_IsRes.dll | 389.1 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data2.cab/_Support_Polish_Files/_IsRes.dll | 393.2 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data2.cab/_Support_Portuguese_(Brazilian)_Files/_IsRes.dll | 397.3 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data2.cab/_Support_Portuguese_(Standard)_Files/_IsRes.dll | 401.4 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data2.cab/_Support_Russian_Files/_IsRes.dll | 389.1 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data2.cab/_Support_Spanish_Files/_IsRes.dll | 401.4 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data2.cab/_Support_Swedish_Files/_IsRes.dll | 389.1 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data2.cab/_Support_Thai_Files/_IsRes.dll | 389.1 KB | 25 Jun 2015 |
| Realtek_ALC_A377/data2.cab/_Support_Turkish_Files/_IsRes.dll | 389.1 KB | 25 Jun 2015 |
| Realtek_ALC_A377/engine32.cab | 543.5 KB | 23 Dec 2005 |
| Realtek_ALC_A377/engine32.cab/DotNetInstaller.exe | 5.6 KB | 3 Apr 2005 |
| Realtek_ALC_A377/engine32.cab/IKernel.dll | 753.7 KB | 3 Apr 2005 |
| Realtek_ALC_A377/engine32.cab/ISBEW64.exe | 124.4 KB | 3 Apr 2005 |
| Realtek_ALC_A377/engine32.cab/ISBEW64.rgs | 570 bytes | 3 Apr 2005 |
| Realtek_ALC_A377/engine32.cab/ISBEW64A.exe | 63.5 KB | 3 Apr 2005 |
| Realtek_ALC_A377/engine32.cab/ISProBE9x.tlb | 128.9 KB | 3 Apr 2005 |
| Realtek_ALC_A377/engine32.cab/ISProBENT.tlb | 117.8 KB | 3 Apr 2005 |
| Realtek_ALC_A377/engine32.cab/IScript.dll | 274.4 KB | 3 Apr 2005 |
| Realtek_ALC_A377/engine32.cab/IUser.dll | 184.3 KB | 3 Apr 2005 |
| Realtek_ALC_A377/engine32.cab/IsBEW64.tlb | 2.4 KB | 3 Apr 2005 |
| Realtek_ALC_A377/engine32.cab/ctor.dll | 69.7 KB | 3 Apr 2005 |
| Realtek_ALC_A377/engine32.cab/iKernel.rgs | 38.1 KB | 3 Apr 2005 |
| Realtek_ALC_A377/engine32.cab/objectps.dll | 32.8 KB | 3 Apr 2005 |
| Realtek_ALC_A377/ikernel.ex_ | 344.9 KB | 23 Dec 2005 |
| Realtek_ALC_A377/layout.bin | 473 bytes | 23 Dec 2005 |
| Realtek_ALC_A377/setup.exe | 121.1 KB | 23 Dec 2005 |
| Realtek_ALC_A377/setup.ibt | 456.3 KB | 23 Dec 2005 |
| Realtek_ALC_A377/setup.ini | 2.8 KB | 23 Dec 2005 |
| Realtek_ALC_A377/setup.isn | 250.3 KB | 23 Dec 2005 |