Manually trigger memory dump (BSOD)

While the idea of manually triggering a memory dump or Blue Screen of Death (BSOD) may seem a little strange, it can serve a useful purpose in troubleshooting issues with systems apparently locking up or hanging.

When a system stops responding it may be due to a software or hardware issue. A quick way to determine what is at fault is to attempt to trigger a memory dump. If it works, the problem is software-based. If it doesn't work, the problem is likely hardware-related.

This feature only works with a PS/2 keyboard using the standard 101/102-Key keyboard driver, i8042prt.sys.

To enable "crash on demand":

- Open REGEDIT
- Browse to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\i8042prt\Parameters
- Create a new REG_DWORD value called CrashOnCtrlScroll and assign it a value of 1
- Reboot the computer

To trigger the memory dump, hold down the Control (CTRL) key to the right of the space bar, and press the SCROLL LOCK key twice. The resulting memory dump may be useful for troubleshooting some software issues.

You may want to modify which memory dump options are used. For complete details see article 244139 in the Microsoft knowledge base.

Warning: By visiting this site and/or by using any information contained herein, you agree to the Techbytes.ca terms of use.

Add a comment about this TechByte

If you wish to add a comment regarding this TechByte, please use the form below. Please note that by submitting comments using this form you are allowing all of the information submitted to be visible on this website. Any comments submitted using this form will only be shown on the website if they are approved by the administrators of this site. IF APPROVED, COMMENTS MAY TAKE SEVERAL DAYS TO BE POSTED.

Other TechBytes:

• Launch search or other site shortcut directly from address bar
• Know Tech For You: Much Ado About Malware
• Can't delete file or folder with weird name