NinjaSandvich

Oh, that worked great - thanks again

Normally yes, however I bought this H80i for £35, second hand from Gumtree. As I am only 15 I need to cheap out on all I can

Ok, that would be nice, however the fact the Rokkit delid tool doesn't seem to have a UK version, might put that out of my reach anyway
Either way, thanks for the help. Both of you.

Yeah, I understand that. And this is good to hear, I wasn't too worried however  I just wanted to check as I am not very knowledgeable about how different factors affect GPU performance, I just know how to build a PC and the basics of how things work, so asking people like you two who actually know what they're talking about, plus I don't really keep up to date with things like this, is certainly helpful
Yeah, I understand that. And this is good to hear, I wasn't too worried however  I just wanted to check as I am not very knowledgeable about how different factors affect GPU performance, I just know how to build a PC and the basics of how things work, so asking people like you two who actually know what they're talking about, plus I don't really keep up to date with things like this, is certainly helpful

Ok, I will have to consider this. I am still not certain if I want to take the risk, but I'll keep it in mind.
Thanks

Ok, that makes sense.
Thanks.

I think I'll pass, I might just settle with painting some accents on it, surely I can just put tape over the contacts and then I don't have to take the heat spreader off, would that work?

Thanks to all, this is good to hear, I was getting kinda worried I had spent too much on something I could have got for less.

Ok, I'll try the Cryorig thermal paste tomorrow.
Thanks

No need, it seems, I found out I forgot to connect my optical drive to anything so I decided to replace the thermal compound while I was there - it's made a massive difference! 
I've been funning Prime95 for about 5 minutes now and It's at about 70 - 75C - on 100% load atm - let's hope this stays this way.
It is a Zalman Z9 Neo case and came with 5 pre-installed fans, all 120mm, but idk the RPM and things like that.

The one that came with the Cryorig H7 - I assume just the Cryorig stock paste.

This is fine for me, I don't really intend to OC, as I will mainly use this for gaming.
Thanks for all the help btw, it seems to have fixed it - after about 10 mins with Prime95 running it got up to a max of about 85C, still a bit high (I think) but that is an unrealistic amount of load for me gaming - it won't get near that

This is great news.
I think this is what I'll go for, thanks