Aria G25 power consumption

With LAN cable connected

State microSD clock mA@3.3V Watt
Boostrap 44MHz 210 mA 0.69 Watt
Idle 44MHz 169 mA 0.56 Watt
Idle 30MHz 168 mA 0.55 Watt
Idle 20MHz 167 mA 0.55 Watt
Idle 10MHz 166 mA 0.55 Watt
Idle 2.5MHz 165 mA 0.54 Watt

With LAN cable disconnected

State microSD clock mA@3.3V Watt
Boostrap 44MHz 120 mA 0.40 Watt
Idle 44MHz 82 mA 0.27 Watt
Idle 30MHz 79 mA 0.26 Watt
Idle 20MHz 78 mA 0.26 Watt
Idle 10MHz 77 mA 0.25 Watt
Idle 2.5MHz 76 mA 0.25 Watt


These are the commands to reduce the microSD clock frequency:

mount -t debugfs none /sys/kernel/debug
echo -n 2500000 > /sys/kernel/debug/mmc0/clock

Arietta G25 power consumption

Condition Arietta G25 128 MB Arietta G25 256 MB
Idle after boot CPU 1% 60mA @ 5V (300mW) 59mA @ 5V (295 mW)
During boot 85mA @ 5V (425 mW) 84mA @ 5V (420 mW)
CPU load 100% (memtester) 85mA @ 5V (425 mW) 84mA @ 5V (420 mW)
Peak During boot with WiFi module IA 150mA @ 5V (750 mW) 150mA @ 5V (750 mW)
Idle after boot CPU 1% with WiFi module IA not associated 79mA @ 5V (395 mW) 78mA @ 5V (390 mW)
Idle with WiFi IA associated no traffic 133mA @ 5V (665 mW) 132mA @ 5V (660 mW)
During WiFi IA download no other activities 160mA @ 5V (800 mW) 160mA @ 5V (800 mW)

Acqua A5 power consumption

Condition Acqua A5 256E Acqua A5 512
During boot ETH cable detached 189mA @ 3.3V (622 mW) 176mA @ 3.3V (580 mW)
Idle after boot CPU 1% ETH cable detached 144mA @ 3.3V (475 mW) 132mA @ 3.3V (437 mW)
CPU load 100% (memtester) ETH cable detached 204mA @ 3.3V (675 mW) 194mA @ 3.3V (641 mW)
During boot ETH cable attached 238mA @ 3.3V (784 mW) 223mA @ 3.3V (736 mW)
Idle after boot CPU 1% ETH cable attached 194mA @ 3.3V (641 mW) 180mA @ 3.3V (593 mW)
CPU load 100% (memtester) ETH cable attached 256mA @ 3.3V (846 mW) 242mA @ 5V (798 mW)
Idle after boot CPU 1% ETH switched off (cable doesn't matter) 91mA @ 3.3V (299 mW) 95mA @ 3.3V (314 mW)
CPU load 100% (memtester) ETH switched off (cable doesn't matter) 154mA @ 3.3V (508 mW) 150mA @ 5V (494 mW)