ASROCK Z690 Aqua OC User Manual page 52

Slow Mode Switch
(SLOWMODE1)
(see p.8, No. 15)
LN2 Mode Switch
(LN2MODE1)
(see p.8, No. 14)
44
If Slow Mode is on, the
processor runs at lowest
frequency.
The LN2 mode aids in
eliminating the cold-boot bug
issues in processors during
extreme overclocking with
Liquid Nitrogen.