Asus MAXIMUS V EXTREME - Manual (Page 46)

1-30 Chapter 1: Product introduction
Chapter 1
Ensure to set the LN2 Mode jumper to [Enable] before using the Slow Mode Switch.
5. Slow Mode switch
Slow Mode switch allows your system to provide better overclocking margins when
using the LN2 cooling system. When enabled, the Slow Mode switch prevents the
system from crashing, slows down the CPU, and the system’s tuner will make the
adjustments.
6. PCIe x16 Lane switch
This DIP switch allows you to enable and disable the corresponding PCIe x16 slots.
When one of the installed PCIe x16 cards is out of order, you can slide the switch to
find out the faulty one without removing the cards.