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these are very conservative figure for a computer setup....
hdd 1-2w (which model)
wireless card 1-2w (again which model)
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It's a Seagate Momentus 5400.3...from the specs sheet on the Seagate site:
Seek: 2.0 W
Read/Write: 2/1.8W
Idle/Standby: 0.8/0.2 W
Wireless cards on g mode will usually never exceed 3W at peak (search) which drops down to a much lower 0.5-1W during regular connection
Additionally, the wireless card will usually be disabled..the only time I'll use it is when the car is parked at house to transfer data from my home network
Don't compare the figures I have drawn to the PSU specs that people look for on TE...
When you have a 8800GTX with a overclocked C2D/X2 with 3 3.5" drives, you need at least 10 times the power
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also the power supply adapter you showed in the pic cannot give clean continuous power at 60 watts continuously...
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No, the one in the pic isn't the actual one, it was just meant as a pointer..
this is the actual one I am using
Amazon.com: Xantrex Technologies XPower Micro 175-Watt Inverter #851-0178: Home Improvement
It takes up the 85W charger on my laptop for hours on long trips without heating up at the slightest + it has an overload cut off/ discharge cutoff when battery voltage drops low
So it should be adequate to begin with
I plan to measure the power draw at the DC terminal and the DC power draw of the Comp at all the rails to figure out the exact losses I am incurring...and if it's inordinately high, I'll switch to the DC-DC SMPS