RAM is usually one of the last components to fail. Your graphics card, hard drive, or motherboard are more likely to develop faults first. However, no matter how high-end your RAM, it's not immune to ...
I tring to make a bootable usb key for memtest86. The system I making this for is mini-pc that is diskless (no cd-rom or floppy). Memtest86 only provides images for floppies (.bin) and cd-rom (.iso).