My motherboard fan sounded like a motocross bike so time to replace.

This holder hangs on to the poop chute with double sided tape. No need to remove heatsink, or even remove the old fan if you don't want to.

Use the connectors that come with NOCTUA to connect the old fan adapter to the new fan as below (listed in order as in stock fab cable):

STOCK === NOCTUA

black → YELLOW

DarkGrey → BLACK

grey → GREEN

white → BLUE

Fan used:

Noctua NF-A4x10 5V PWM

Amazon.com: Noctua NF-A4x10 5V PWM, Premium Quiet Fan with USB Power Adaptor Cable, 4-Pin, 5V Version (40x10mm, Brown) : Electronics