My msi Z77A will not boot after several months of use

So I've had this pc build for about 7-8 months. The motherboard is the msi Z77A-GD65 and randomly this morning I went to turn on the pc and I didn't get a beep or anything. The pc just shut down and restarted up again but did the same thing over and over again. Everything seems to turn on but I'm not getting the post beep anymore and the code on the mother board says 55 (Early memory initialization). Does this mean that one of my sticks of ram might be dead? How do I find out which one? Any other help or suggestions? Thanks

Quote from: Froggy Gremlin on 30-April-13, 02:39:07
After providing specs as flobelix has requested will certainly help in the troubleshooting process. First thoughts are PSU has become faulty, RAM stick(s) gone bad, or a long term OC has taken it's toll.
Test each stick individually in the primary DIMM2 slot.
Specs are:
msi Z77A-GD65 motherboard
Intel i7 2600k
12gb Corsair Vengeance ram DDR3 (3x4)
AMD Radeon HD 7850 2gb
I'm not sure what the power supply is off the top of my head but I can check if needed. I've tried testing individual sticks and I've had no luck, still keep getting the 55 error. Also I haven't done any overclocking on my machine.

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