MSI X99S MPOWER Overclocking Guide - Manual (Page 11)

11-
Discharge (Option)
V-check Point (Option)
Slow Mode Switch (Option)
In cases where overclocking becomes
unstable or fails, pressing this button
will allow the mainboard to shut down,
discharge electricity, and subsequently
Clear CMOS. Unlike the normal Clear
CMOS function, the Discharge Button
is equivalent to clearing CMOS after
removing the buttery, and may prevent
occasional situations where CMOS is
not fully cleared.
“V-Check Points” detects voltage
for core components during
overclocking activities. There are
five measure points at the edge of
this mainboard, allowing enthusiasts
to check relevant voltage values
through a multimeter.
After activating the Slow Mode Switch,
the CPU will boot into the OS at a
lowered frequency. Only when the Switch
is off that the system instantly returns
to its overclocked state. This function is
also available under LN2 environment.
After executing Benchmark to obtain
various results, it can be verified with
CPU-Z to break records in an instant.