gtx 1070 Gtx 1070 radiator turns purple

[WhiteNyx]

Hello! Is my first post and i hope it will be ok.
So I buyed few weeks ago a gpu 2nd hand. I did that because i don t had enought money and prices has exploded in the last few months.

I don t know if it was used on mining but the guy told me he didn t. So i played Ark, but i saw that my temp are above 85 C in med- high in UHD and i was thinking that maybe i need to change thermal paste and pads but when i opened it looks like this . I posted in a group and people there told me that it can t be because of the heat, so my question is why it looks like this? 
It s a gtx 1070 kfa2 (1 fan).
And another thing is that the radiator is kinda stuck there i tried to heat a little with my hair dryer but didint work. 
Thank you! 

p.s: Sorry for my grammar I haven't written in english in a few years. 

[Jeppes]

What makes you think it did not look like that all the time?

[WhiteNyx]

2 minutes ago, Jeppes said:

What makes you think it did not look like that all the time?

Because when i search it on images and didnt find one like it and in this photo you can t see but on the sides it is so but asymmetrical. If u look closer the top left think is blacky-whiteish and it s not beacuse of the light

[RAS_3885]

On an older card that's been thermal cycled MANY times it's not surprising to see some discoloration of the cooler.

 

Also, for that cooler style 85 C isn't really that bad.