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Originally Posted by Tazer-[X]  What are the symptoms if your ram is undervolted or bad timings or maybe evn both? Mobo is gigabyte x48, ram is HyperX @ 1000MHz |
no reason to run your RAM undervolt - when you install your RAM it is run on default JEDEC specs if I'm not mistaken and it's up to you to raise the voltage and timings to match the advertized specs, unless specified otherwise and your board supports the extended profiles.
Don't wait until you have symptoms - you get new RAM, configure it properly according to specs and run it through memtest86 and let it run all the tests - and make sure it passes at least once - You can leave it on multiple passes if you wish for more advanced stress testing and stability over a long period of time.
Instability is the main symptom and might vary depending on where your memory failure is located. You may get windows boot errors / protection errors, blue screen on boot, frequent crashing of applications, kernel32dll errors, blue screens, garbed textures in games and even data corruption on your HDD (crc errors) (you don't want that!)
For testing RAM I use 2 tools. memtest86 and docmem - they run advanced pattern testing - DO NOT rely on your BIOS's quick or normal memory testing, it won't detect all memory problems.