i have a i7 4790k stable @ 4.7ghz i stress tested using occt for 10 hours and my cpu is stable . my motherboard is a msi z97 gaming 7 and i am using bios version 1.4 . i just found out that there is a newer bios version 1.5 . if i update my bios to 1.5 should i stress test my cpu again ?