The effect of a power surge can be everything. It's impossible to say if you need to replace the PSU, the motherboard or the hard disk. A repair shop will be able to find out.
For the hard drive:
- how did you hook up the hard drive (SATA-port, external enclosure via USB, ...)?
- what program did you use to create the partition?
- is that on this damaged PC or on another PC without issues?
So I have two questions, first My desktop has been the victim to a few power surges due to something in my apartment causing them, and now my PC shuts down and restarts randomly, and frequently during the restarts, it will restart multiple times before getting to the log in. My question is do I need a new power supply? and if not, what other parts could be effected by these surges that might be causing the restarts? my power supply is - SuperNOVA 550 G2 550W 80 Plus Gold Modular, I have a ZOTAC GeForce GTX 1070 AMP edition and I dont overclock my PC or anything like that.
My second question regards my hard drive, it is a - WD Blue 1TB PC Hard Drive - 7200 RPM Class, SATA 6 Gb/s, 64 MB Cache, 3.5" - WD10EZEX, after hooking up my hard drive I went to create a partition but the drive is labeled "UNKNOWN" and I can't modify anything about it, any tips?
Any advice about my issues is appreciated, thank you.

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic