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How to Test your RAM

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#1 Billy O'Neal

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Posted 02 March 2009 - 07:57 PM

How to Test your RAM

Guide Overview

The purpose of this guide is to teach you how to check whether your system's RAM (Ramdom Access Memory) is working properly. Bad RAM can lead to a whole host of problems, often which do not appear to have a single cause -- appearing as systemwide glitches, blue screens, and other system trouble. MemTest86+ provides a very good detection mechanism for failed RAM, and is about as good a test you get short of actually replacing the module itself.

Tools Needed
Please perform these steps from a separate, working, machine.Perform these steps on the problem machine.
  • Put your CD in the drive and configure your machine to boot to the CD. This is different on all machines, but it's usually by pressing F12 or F10 as your system boots, and selecting either "CDROM" or your cdrom drive. If you are unable to force a CDRom boot, reply with the make and model of your machine and I should be able to get you exact instructions.
  • If you've done it correctly, MemTest86+ will start to run automatically, as shown below:
  • If you want to be reasonably your RAM is OK, then allow MemTest to run until you see this message:

    On the other hand, if you want to be completely sure your RAM is OK, allow MemTest to run overnight. Memtest will run forever until power is pulled on the machine.
  • Check the MemTest screen for any reported errors. Errors will appear as RED warnings at the bottom of the screen, similar to the following screenshot:
  • Hard-Reset the machine, removing the MemTest disk in the process.
If you didn't get an error screen, Congratulations! smile.gif
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#2 jellybean_po420


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Posted 18 June 2010 - 08:33 AM

I have an HP Pavilion dv7-3186cl and can't figure out how to work the test.

#3 Ayush_ANI


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Posted 15 September 2012 - 02:44 PM

Hay i got this RED warnings Error what is the mean of that?? what should i do now? plz help

#4 boopme


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Posted 19 September 2012 - 03:30 PM

@ Ayush_ANI

Ask in Internal hardware..
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#5 6sixty6


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Posted 29 June 2018 - 08:17 AM

Windows 7, 8 and 10 comes with built in Memory Diagnostic Tool.



Edited by 6sixty6, 29 June 2018 - 08:21 AM.


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