Just check the memory specs; they should be listed on the manufacturer's website or newegg.com. Or check the label. To change the timings, change from auto to manual. If the voltage is correct for your ram, save and exit. I wouldn't change any timings; just leave it in manual mode. If your system is stable, then you're done. If you set a timing that doesn't work, then your board won't post, and you have to reset the bios using the cmos jumper or remove the board battery with the system off. Not worth the hassle, especially if you don't know what you're doing.