Asus Rog Maximus X Apex User Manual page 29

8. PCIe x16 Lane switch (PCIEX16_SW1)
These slide switches 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 use the slide
switch to find the faulty one without removing the cards.
9. Pause switch (PAUSE)
The pause switch allows you to freeze the cooling system at a hardware level, thus
allowing you to adjust your system settings under heavy overclocking.
ROG MAXIMUS X APEX
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