Comprehensive: Comprehensive memory diagnostic testing.
Automated: Automated restarting and logging of errors.Advanced: Advanced configuration options.Boot up the image and from the USB drive and you'll have access to the program. From there, you'll find an IMG file extracted which can then be burned to a USB drive with a program like etcher. You just have to download the memtest86-usb.zip archive and extract it. The BIOS-based memory tests are a quick, cursory check and often miss many of the failures that are detected by Memtest86. It runs a RAM test to see whether there are issues. Memtest86 is a thorough, standalone memory test for x86 architecture computers. Please post any updates to this procedure.A bootable image which will run tests on your install memory After about 60 seconds the computer boots from this CD and starts running memtest automatically. Boot the computer again with this CD in the drive, and hold down on the ' c' key while the computer is booting to tell it to boot from CD.ġ2. In the icons at the top of Disk Utility, click the 3rd one from the left that says, " Burn" Insert a burnable CD in the drive and burn the CD.ġ1. Click the top line that says, memtest86-4.1.0.iso.ĩ. Now in the list on the left of Disk Utility below the horizontal line, you should see an icon with "memtest86-4.1.0.iso" on it and "CDROM" underneath. iso file extension so that Disk Utility will recognize it. Note: if the version name changes between when I write this and when you read these instructions, you can likely type " gunzip mem" and file completion will complete the rest of the name correctly for you.ĥ. Download the the Linux "Image for creating a Bootable CD"Ģ. Note: this has only been tested on a 2009 iMac running Mac OS 10.6.8 (Snow Leopard).ġ.
After spending a long time figuring out the following information, I thought I'd share.