FirePower Technology MK3S1200W - Manual (Page 5)

04
DUAL THERMAL CONTROL SYSTEM
Normal Mode:
Fan always operates with variable RPM determined by temperature and power loads.
Silent Mode:
· Fan*remains idle at specific temperature = Zero noise.
· Reduce unnecessary rotation in order to increase the life span of the fan and dust
accumulation.
· Decrease unnecessary consumption to increase the efficiency.
*Fan appears to be stationary at low temperature in the beginning is normal.
PCI-E VIDEO
SATA
PERIPHERAL
+12V
+12V
Gnd
Gnd
Gnd Gnd
+12V
+3.3V
+5V
MODULAR CABLE PIN ASSIGNMENT
FAN MODE SWITCH
Silent Mode: Fan does not
come on until ~50% load then the
speed varies with load and
temperature
Normal Mode: Fan always
spins but the speed varies with load
and temperature
1400
1300
1200
1100
1000
900
800
700
600
500
400
300
200
100
0
FAN SPEED (RPM)
LOAD (%)
Silent Mode
Normal Mode
25% 50% 75% 100%