Ripaws CL7 RAM with memory errors

[samwise]

I had ordered the following Ripjaws from Newegg, barely a month back.
http://www.newegg.com/Product/Produc...82E16820231276

Two days ago, my system crashed with a Page fault error. After many unsuccessful attempts, I finally got it working by formatting the system.
In the process, Windows Memory Diagnostic tool showed that one of the RAMs had memory errors.
Could you recommend any software with which both Gskill and I can confirm that the RAM indeed has errors?

Please let me know what I should do now. Shall I RMA it back to Gskill?
Though I ordered it from Newegg, Im actually from India. So Im thinking it would be better to RMA it.

And should I send both the RAMs, or just the one that's defective? Because, if I send both for RMA, my pc will be rendered useless till I get the replacements
As per my earlier thread, Im sure you can understand that my problems continue. First. it was with the 4GBHKs, and now its the Ripjaws. Please help me resolve these RAM issues once and for all...

Thanks

[samwise]

btw, I did not change the timings when I installed it.
does changing the timings resolve the memory error?
What is the recommended timings for the Ripjaws CL7 and the MSI 790FX GD70, and if I need to change any other parameter on the Bios to make it work...