Alright, everything looks good there. First priority should be taking care of your high temperatures. Re-apply the thermal compound: Thermal Paste and How To Use It | techPowerUp
Make sure the heatsink is firmly attached to the motherboard after re-applying the thermal paste. If you gently wiggle it with your finger, you should not feel any give.
As you add and remove hardware (or wiggle the heatsink), follow these steps for ESD safety:
- Shut down and turn off your computer.
- Unplug all power supplies to the computer (AC Power then battery for laptops, AC power for desktops)
- Hold down the power button for 30 seconds to close the circuit and ensure all power drains from components.
- Make sure you are grounded by using proper grounding techniques, i.e. work on an anti-static workbench, anti-static desk, or an anti-static pad. Hold something metallic while touching it to the anti-static surface, or use an anti-static wristband to attach to the anti-static material while working. If you do not have an anti-static workbench, desk, or pad, you can use your computer tower/case by finding a metal hold in it, such as a drive bay.
Once these steps have been followed, it is safe to remove and replace components within your computer.