Power Draw of My Computer

May 6, 2018
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I have a unit that consists:
- Intel G4400 cpu
- 8 Gig ram DDR4 1.2 V
- 16 gig flash usb for storage
- 12 fans @4.3 Watt
- OS: lubuntu 17.10

Without running any application on the unit, it draws 374 Watt power. Is this too much? Because when I use power calculator, it says the unit supposed to load around 166 watt. Is there any way to tweak power consumption?

regards
 
Solution
So you stripped the power cable, clamped one of the wires with your multimeter's AC current reading and multiplied by your regions mains voltage?

How much does your system draw under idle or load?
I'd check if your boot power consumption is still high without the GPU connected.
it draws 374 Watt power.
I am confused where you found this number.
If that's what functional power meter displayed, there'd be something wrong if you don't have a discrete GPU, or your PSU is very inefficient.

If that's the number read on the power supply unit, it's probably referring to its maximum capable delivery.

If it's just what some software spat out, ignore it.

I doubt your system is consuming more than 100w at any time judging from this review
Intel-Pentium-G4400-Power-OC-645x413.jpg
 
from multi meter read of power cable in the process of booting. I have RX570 GPU connected, but it wasn't running. It shouldn't effect that much, should it?

Also my PSUs are 80gold Corsairs, this should be efficient, right?
 
So you stripped the power cable, clamped one of the wires with your multimeter's AC current reading and multiplied by your regions mains voltage?

How much does your system draw under idle or load?
I'd check if your boot power consumption is still high without the GPU connected.
 
Solution
hello, I put the probe in the AC output of the PC.

There is new info for my setting that I left out because I thought it was negligible. The motherboard is Asrock H110 BTC PRO for mining that is connected with 13 GPUs via PCI riser. The risers are connected via USb3 to the motherboard, however, I only connected one of them, the other 12 are left hanging. But those 12 GPUs are still powered with their PCIs (each PCIs is powered via molex coneection). I thought if I don't send any signal to those GPUs, it wouldn't draw any power. This is probably wrong.

I would follow Rexper advise by disconnecting the components one by one and measure the power draw in each setting.

Thanks for the help