Thats pretty good ram. What Mhz are you running at.
You can leave it at auto if you wish, but you are probably missing out on performance.
I would at least try it on the most aggressive memory timings, double checking that it runs ok with the program MEMTEST86.
<b><i>The Very Hungry Caterpillar</i> - George W. Bush's favorite childhood book.
Note: This book was first published a year after Mr Bush graduated from College.</b>