My cooler, the Noctua NH-15S, has the mount properly set. The last two screws to attach the actual heat sink are giving me absolute hell. They just won't go down. The springs are so strong. I've tried for hours. It's been two days. I'm probably going to have to buy new thermal paste. I've gone through an entire roll of paper towels for the Isopropyl Alcohol (91%) I use to clean up the thermal paste. I'm terrified that I'll destroy the motherboard or the CPU.
CPU Cooler: Noctua NH-D15S 140mm SSO2 D-Type Premium CPU Cooler, NF-A15 PWM Fans
https://noctua.at/en/nh-d15s
Motherboard: GIGABYTE Z390 AORUS PRO LGA 1151 (300 Series) Intel Z390 ATX Motherboard
https://www.gigabyte.com/Motherboard/Z390-AORUS-PRO-rev-10/support#support-manual
CPU Cooler: Noctua NH-D15S 140mm SSO2 D-Type Premium CPU Cooler, NF-A15 PWM Fans
https://noctua.at/en/nh-d15s
Motherboard: GIGABYTE Z390 AORUS PRO LGA 1151 (300 Series) Intel Z390 ATX Motherboard
https://www.gigabyte.com/Motherboard/Z390-AORUS-PRO-rev-10/support#support-manual
4 pictures gallery link:
View: https://imgur.com/a/JG6a8yD