Yup, ..but instead of towels, you should use old clothes.. towel will be to thick..
But be aware that
there are temperatures and time you need to respect! Because you have to reach the soldering melting point, but without leaving it long because we dont want to make a 'soldering pancake' under the chips.. just need to give a quick melt to replace the soldering underneath the chips.
So you should make a quick search before doing it, about the temps and time people leave it in the oven!
..i'm not held responsible if you burn your motherboard or if you burn down your house..so take time to do it properly and watch it all the time of the process!
Take your time, good luck!
EDIT: oh and also, when its done, dont remove it immediatly from te oven, leave the oven door open and let the board rest for atleast 2 minutes, to make sur the solders had time to harden before manipulating the board!