**** it, repair it yourself cause I did it with mine and I have almost zero knowlegde about these things.
Remove the X-clamps and use bolts instead. Screw them so much that the heatsinks will fit properly on the chips or whatever they are called. After that, RROD it self with a towel and boot it again, there you go. Mine never gave up on me after that.
E: There are alot of tutorials to fix it (Removing X-clamps)