Guys, if someone is far way from their multimeter, what are they to trust? :p

My multimeter is at home, and im at UNI.. not going home for another month or so.. i set 1.28V (cpu vcore) in bios and DISABLED LLC.. and CPU-Z shows it as

1.23-24 fluctuating between the values =/ i thot the board overvolted and not under?

using the latest 1306 bios btw

Also, is it normal for coretemp to show the two cores as having different temps? (48C and 42C) in my case (tjmax = 105C)

Edit: Seems like my board doesnt like x7 ratio =/ =/ currently @ 425x8 @ 1.28vCore (bios) 1.24vCore (CPUZ)