How to generate a memory dump file by using a PS/2 keyboard in Windows Server 2008

Windows Server 2008 includes a feature that you can use to cause the computer to stop responding and to generate a memory dump file (Memory.dmp). When you use this feature, you receive an error message that resembles the following:

By default, this feature is disabled. To enable this feature on a computer that uses a PS/2 keyboard, modify the registry as indicated in this article. Then, restart the computer. After you restart the computer, you can generate a memory dump file. To generate a memory dump file, hold down the CTRL key on the right side of the keyboard, and then press the SCROLL LOCK key two times.

Note You must use the CTRL key on the right side of the spacebar.

This feature is available only for PS/2 keyboards. PS/2 keyboards use the i8042prt.sys driver that is included with the keyboard. This feature is not available in Windows Server 2008 for universal serial bus (USB) keyboards.

To enable this feature on a computer that uses a PS/2 keyboard, follow these steps.

Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall the operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk.

1. Start Registry Editor. To do this, click Start, click Run, type regedit, and then click OK.
2. Locate the following registry subkey:
   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\i8042prt\Parameters
3. On the Edit menu, click Add Value, and then add the following registry entry:
   Name : CrashOnCtrlScroll
   Data Type : REG_DWORD
   Value : 1
4. Exit Registry Editor, and then restart the computer.
   
   Note A server may also have a nonmaskable interrupt (NMI) delivered to cause the computer to stop responding and to generate a memory dump file. Or, the memory dump file can also be generated by using a debugger.