Then attach another brand / bus speed RAM and test for a while. For example, use same brand and same bus speed RAMs together and test the machine for a while (remember, the issues can be very subtle). So, you have to make sure that combinations also work. Please note that all RAMs and slots can be good but if there is a miss match (bus speed or brand) then it can cause issues. Then check ram 2,3.n.Īgain if you find a faulty RAM, then maybe the RAM is not fault but the slot where it is attached. If there is no issue then it is a good RAM. Then run your machine for a while and check if there is any issue or not (remember, the issues can be very subtle, for example keyboard does not work for 1-5 seconds every once in a while). Then I took out the RAMs i doubted and the system started running smoothly. It reported that the RAMs do not have any issues. Now restart your machine and boot from the usb drive.ĭiagnosing RAM with tools most of the time do not work. It has a free variant but is not open-souce. See this example of doing this on a remote server, but based on the above tutorial. It's especially useful if you are working on a remote machine, and inserting a physical usb is out of the question. Here is a great tutorial on how to add the freeware memtest86 to UEFI Grub2. See: Adding newest freeware memtest86 to UEFI Grub2 There is a commercial version and a free version (no cost, but not open source code). There is another version, the 'original' but now not FOSS version memtest86, and it works in UEFI mode. See: Where is the memtest option on the Ubuntu 64-bit live CD?. But if you can boot the computer in BIOS (CSM, legacy) mode, they work. Older versions of Memtest86+ do not work in UEFI mode because they are 16-bit programs. This iso file can be cloned directly into a USB drive to make a bootable memtest86+ system and it works both in UEFI mode and the old BIOS mode alias legacy mode.Įdit 2: Memtest86+ version 6 (and newer) can be downloaded as a standalone zip file, which contains an iso file.
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