Why Am I Getting Memory Errors?

To help understand why you are seeing memory errors, please have a look at HowMemoryEdacHardwareWorks.

The reason that you are seeing problems is very likely to be one of:

Your RAM is bad
Your Motherboard is bad
Your CPU is bad (for CPUs which have the memory controller built into the CPU core, such at the AMD Opteron/Athlon-64)
The connection between your motherboard and your CPU, or memory module is bad
Some of your hardware is being operated out of spec, such as:
- Things are being run too hot
- Timings are being violated (e.g. running memory too fast, or bad DRAM clock generation)
- Supply voltages to the critical compontents
You have seen one or more "Single Event Upsets" - see SoftErrors
The EDAC module is buggy

WhyAmIgettingMemoryErrors