Core i7

lightning fried my acer veriton x4620g motherboard windows 7 pro.

Thinking of building a new pc. Is my Core i7 cpu and cooler still good enough to use to build new pc. or should i go all new. I'm not a gamer but i would like something fast. I have no idea what cpu is good or not. i7 seems that it should be better than i3 or i5 ????? or maybe not??? on the i7 cpu it says (intel "R" core i7-3770 sr0pk 3.40GHZ costa rico. Is that good or cheapo?

Hope this isn't too a newbe a question. I'm a 68 yr old grampa that wouldn't want the grandkids to laugh too hard at my new pc. lol
Thxs in advance

 

Thxs for the info CRJ, I appreciate it

 

Ok installed new motherboard and the fan started up, I was really excited. installed new 1tb w/d hdd reinstalled my acer backup dices. after the widows 7 was installed, i rebooted pc and i had to press F1 to go into windows. after a few trys of starting and powering down windows with the shut down button and always having to push F1 to power to windows, i then checked the bios to see that first boot was to the HDD and then when powering on PC i get an error saying not reading disk or disk is bad. Tried F1 but nothing. Tried Hdd in another pc and it works great. Now motherboard is dead like the old motherboard, I'm assuming because fan won't start up and nothing on monitor. Moved ram from 2 to 4 then 1 to 3 and get nothing. Again tryed two other PSU units older that i had laying around but nothing. I don't have another cpu to r&r I have two old Intel Pentiums but they don't fit, different a bit. Is there a Mcgiver trick to test the cpu if you're thinking it's the cpu?
Thxs
Neil