Dell OptiPlex 7470 All-in-One Setup and specifications guide

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Power

Table 1. PowerPower
Description	Option one	Option two
Power Supply Wattage	240 W EPA Platinum	155 W EPA Bronze
AC input Voltage Range	100 Vac–240 Vac	100 Vac–240 Vac
AC input current (low AC range/high AC range)	3.6A/1.8A	3.6A/1.8A
AC input Frequency	47 HZ - 63 HZ	47 HZ - 63 HZ
AC holdup time (80% load)	16 mini sec	16 mini sec
Average Efficiency	90-92-89% @ 20-50-100% load	82-85-82% @ 20-50-100% load
Typical Efficiency (Active PFC)	N/A	N/A
NOTE:The typical efficiency of an Active PFC Power Supply is 70%. APFC Power Supply is not offered with OptiPlex 7470 AIO
DC parameters
+12.0 v output	N/A	N/A
+19.5 v output	19.5 VA - 8.5A and 19.5VB - 10.5A	19.5 VA - 7.5A and 19.5VB - 7.0A
+19.5 v output auxiliary output	19.5 VA - 0.5A and 19.5VB - 1.75A Standby mode 19.5 VA - 0.5A and 19.5VB - 1.75a	19.5 VA - 0.5A and 19.5VB - 1.75A Standby mode 19.5 VA - 0.5A and 19.5VB - 1.75a
Max total power	240 W	155 W
Max combined 12.0 v power (note: only if more than one 12 v rail)	N/A	N/A
BTUs/h (based on PSU max wattage)	819 BTU	529 BTU
Power Supply Fan	N/A	N/A
Compliance
Erp Lot6 Tier 2 0.5watt requirement	Yes	Yes
Climate Savers / 80 Plus Compliant	Yes	Yes
Energy Star 7.0/7.1 Qualified	Yes	Yes
FEMP Standby Power Compliant	Yes	Yes

Table 2. Thermal DissipationPower
Power	Graphics	Heat dissipation	Voltage
155 W	Integrated gfx	155 * 3.4125 = 529 BTU/hr	100 VAC–240 VAC , 50 Hz–60 Hz , 3 A/1.5 A
240 W	Discrete gfx	240 * 3.4125 = 819 BTU/hr	100 VAC–240 VAC , 50 Hz–60 Hz , 3.6A/1.8 A

Table 3. CMOS batteryPower
3.0v CMOS battery (Type and estimated battery life)
Brand	Type	Voltage	Composition	Life
VIC-DAWN	CR-2032	3 V	Lithium	Continuous Discharge Under 30 kΩ Load till 2.0 V End-Voltage at the temperature of 23°C±3°C. The batteries should be submitted to 150 temperature cycles from 60°C~-10°C, and then be stored for more than 24 hours at 23°C±3°C
JHIH HONG	CR-2032	3 V	Lithium	Continuous Discharge Under 15 kΩ Load to 2.5 V End-Voltage. 20°C±2°C: 940 Hrs or longer; 910 Hrs or longer after 12 months.
MITSUBISHI	CR-2032	3 V	Lithium	Continuous Discharge Under 15 kΩ Load to 2.0 V End-Voltage. 20°C±2°C: 1000 Hrs or longer; 970 Hrs or longer after 12 months. 0°C±2°C: 910 Hrs or longer; 890 Hrs or longer after 12 months.