uhm... for starter u can try to leave the memory timing at auto, set mem voltage to 1.65v and see if its ok with that oced speed.
open up cpuz and check the vcore voltage, see what is the vcore and then try to set it in bios to make it about the same as the one showing in cpuz, reboot and then open cpuz see if the new vcore setting u set matches the one u check at the 1st time, this is to let u set the vcore manually and u know what is the baseline of it being set to auto and it ran stable with the stress test, from here on you can play around with the vcore in bios plus or minus, this would help u to oc further if u know the baseline of the vcore, this is for cpu overclocking. essentially u can lower down the vcore 1 step than the baseline, it might still stable and u will have less issue by lower it down.
for mem overclocking, 1.65v will be my baseline and it was mention by intel as well. max you can set should be 1.7v, put a fan on the ram, it would help a bit too. if 1.65v ran fine with the overclocked settings, then leave it as it is, dont add more voltage unless u wan to get higher speed but u will have the risk of killing the hardwares since you are new into this.
i hope you understand what i am saying here, else u can just pm me and shoot me with related questions, i will try to assist you from there