Components For Continous 24/7 Operation @ +60°C - Fujitsu D3231-S Technotes

System Monitoring
4.7 Components for continous 24/7 operation @ +60°C
Operating Conditions:
Circulating air
(mainboard) max. 60°C
Usage 24h / 7 days
All onboard electrolyte
capacitors: Polymer type only
(= solid electrolyte)
All voltage regulators =
switching regulators (high
efficiency & stable operation
within full temperature
range). No linear regulators
(low efficiency)
Quartz with enhanced
operating temperature range
a
g
e
COM Driver with enhanced
operating temperature range
TechNotes D323x-S_D3243-S V1.2
mainboards
Capacitor Endurance Time
Solid Electrolyte:
Fluid Electrolyte:
Page 50 of 98 http://www.fujitsu.com/fts/products/computing/pc/accessories/mainboards
6-layer PCB for improved
signal quality within full
operating temperature range
Extra Heatsink
on PCH (Q87)
Quartz with enhanced
operating temperature range
High Efficiency Processor
Core Voltage Regulator
for reduced thermal
dissipation loss
Note: Power Consumption
PCH  P max ~ 4.1W
 P idle ~ 0.7W
Lx = effective endurance time
Lo = endurance time @ 105°C
(e.g. 2.000hrs)
to = 105°C
tx = capacitor surface temperature
(e.g. 68°C)