ASROCK B550M-C R2.0 User Manual page 33

Ryzen series APUs (Picasso):
Single Graphics Card
Two Graphics Cards in
CrossFireX
For a better thermal environment, please connect a chassis fan to the motherboard's
chassis fan connector (CHA_FAN1/WP, CHA_FAN2/WP or CHA_FAN3/WP )
when using multiple graphics cards.
28
PCIE1
Gen3x8
Gen3x8
TM
Mode
PCIE4
N/A
Gen3x4