The OptiPlex GX520 is a common computer motherboard manufactured by Dell. Update now to fix problems such as frequent crashing, computer shuts off unexpectedly, no audio or no video, or a blank screen on start up. Visitors have downloaded this file "CZ125500.exe" 31 times with an aggregate rating of 5 out of 5 stars based on 2 reviews. The total disk space used for this update is 2.3 MB.
OptiPlex GX520
Not Applicable
A1255 (18-Apr-2005)
Diagnostics: Dell 32 Bit Diagnostics (Graphical User Interface version), Diagnostics Utility, English, Dimension XPS (Gen 5), OptiPlex GX520, GX620, A1255
Dell 32-bit Diagnostics v1255
Jayakumar (DG Staff Member) on 29-Jun-2008
To get the OptiPlex GX520 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 Dell OptiPlex GX520 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 Dell 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 Dell website. Most major device manufacturers update their drivers regularly.
After downloading the new driver, proceed with installation. On Windows, use the built-in Device Manager utility to manage your system's devices and drivers. To access it:
Right-click the Start button
Select "Device Manager" from the menu
Locate the device needing the update
Right-click the device and choose "Update driver"
Follow the on-screen prompts to install
Once complete, restart your computer to ensure the new driver is fully implemented and functioning properly.
This process helps maintain your system's performance and compatibility with various 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 |
---|---|---|
Adaptec.mdm | 269.1 KB | 15 Mar 2005 |
Adaptec2.mdm | 288.9 KB | 15 Mar 2005 |
BiosMp.mdm | 18.9 KB | 15 Mar 2005 |
CABLES.mdm | 153.8 KB | 15 Mar 2005 |
Cache.mdm | 48.3 KB | 15 Mar 2005 |
Cpu.mdm | 19.6 KB | 15 Mar 2005 |
CsAudio.mdm | 121.6 KB | 15 Mar 2005 |
DDINIT.MLM | 1.8 KB | 15 Mar 2005 |
DDInit.mim | 4.4 KB | 15 Mar 2005 |
DELLDIAG.COM | 10.1 KB | 15 Mar 2005 |
DELLDIAG.EXE | 1.0 MB | 15 Mar 2005 |
DellDiag.INI | 319 bytes | 15 Mar 2005 |
DellSys.msm | 68.7 KB | 15 Mar 2005 |
Disk.mdm | 217.5 KB | 15 Mar 2005 |
Diskette.mdm | 62.7 KB | 15 Mar 2005 |
Dvd.mdm | 14.8 KB | 15 Mar 2005 |
GenAudio.mdm | 177.3 KB | 15 Mar 2005 |
IEEE1394.mdm | 28.6 KB | 15 Mar 2005 |
IMchEcc.mdm | 33.7 KB | 15 Mar 2005 |
INT15_88.COM | 900 bytes | 15 Mar 2005 |
IR.mdm | 62.4 KB | 15 Mar 2005 |
Iaudio.mdm | 101.8 KB | 15 Mar 2005 |
IoApic.mdm | 50.8 KB | 15 Mar 2005 |
Keyboard.mdm | 190.5 KB | 15 Mar 2005 |
LSI.mdm | 43.5 KB | 15 Mar 2005 |
Memory.mdm | 110.9 KB | 15 Mar 2005 |
MiscPci.mdm | 32.1 KB | 15 Mar 2005 |
Mouse.mdm | 72.5 KB | 15 Mar 2005 |
MpCache.mdm | 57.7 KB | 15 Mar 2005 |
NbBatt.MDM | 42.9 KB | 15 Mar 2005 |
NbSvc.MDM | 70.7 KB | 15 Mar 2005 |
Nbfan.MDM | 33.3 KB | 15 Mar 2005 |
Nbtherm.MDM | 48.2 KB | 15 Mar 2005 |
Nic.mdm | 234.5 KB | 15 Mar 2005 |
PM.MDM | 13.9 KB | 15 Mar 2005 |
Parallel.mdm | 47.7 KB | 15 Mar 2005 |
Pci.mdm | 14.6 KB | 15 Mar 2005 |
Perc2Ada.mdm | 28.8 KB | 15 Mar 2005 |
Pnp.mdm | 24.2 KB | 15 Mar 2005 |
Raid.mdm | 62.2 KB | 15 Mar 2005 |
SMBus.mdm | 19.3 KB | 15 Mar 2005 |
SYMTREE.INI | 2.0 KB | 15 Mar 2005 |
SYSBDMON.mdm | 84.3 KB | 15 Mar 2005 |
Scsi.mdm | 198.5 KB | 15 Mar 2005 |
Serial.mdm | 48.5 KB | 15 Mar 2005 |
Smbios.mdm | 106.2 KB | 15 Mar 2005 |
Smi.mdm | 23.2 KB | 15 Mar 2005 |
System.mdm | 71.4 KB | 15 Mar 2005 |
USBOHCI.mdm | 33.9 KB | 15 Mar 2005 |
USBUHCI.mdm | 38.5 KB | 15 Mar 2005 |
Usb.mdm | 67.8 KB | 15 Mar 2005 |
Usb2.mdm | 48.1 KB | 15 Mar 2005 |
UsbDevID.mdm | 114.3 KB | 15 Mar 2005 |
UsbKbd.mdm | 126.0 KB | 15 Mar 2005 |
UsbMass.mdm | 23.9 KB | 15 Mar 2005 |
UsbMouse.mdm | 51.1 KB | 15 Mar 2005 |
UsbTm.mdm | 43.2 KB | 15 Mar 2005 |
UsbUfi.mdm | 62.0 KB | 15 Mar 2005 |
Video.mdm | 152.0 KB | 15 Mar 2005 |
ami_raid.mdm | 38.4 KB | 15 Mar 2005 |
nic8254x.MDM | 83.5 KB | 15 Mar 2005 |