Do you have a link to the 'Plain PQI 8gb RAM (4x 2gb)'?
unfortuantely no, all the info the pricelist says is that its DDR3 and 1333. Btw, would a RAM with different voltage than 1.5v not work with Z68? Does it have to be specifically 1.5v, no more no less? sorry, I'm a total noob when it goes deeper into RAM info.