[SOLVED] How determine total wattage?

[allewyn]

I need to know how to determine my system total power useage in watts. I'm trying to decide on a battery backup for it.
(Lenovo H50-55 with some changes/upgrades)
nVidia geforce gtx 750 t = 180W
AMD A10-7800 = 65W
Samsung 860 SSD 500GB = ?
Seagate 2TB HDD = ?
Optical drive = ?
1 small case fan besides the CPU fan
I'm sorry I don't know if this is enough information. Can anybody guess at my need?

 

[Dark Lord of Tech]

General Summary
AMD - A10-7800 3.5 GHz Quad-Core Processor	8W - 65W
Seagate - Barracuda 2 TB 3.5" 7200RPM Internal Hard Drive	4W - 20W
Samsung - 860 Pro 512 GB 2.5" Solid State Drive	2W - 10W
Gigabyte - GeForce GTX 750 Ti 2 GB WINDFORCE Video Card	15W - 60W
Cooler Master - SickleFlow (Red) 69.69 CFM 120mm Fan	1W - 5W
Total:	30W - 160W

 

[allewyn]

Wow, nice answer! Adding in the monitor that I forgot, it would still be less than 200W. So the max load on the BBU would be between 224 and 280. Much lower than I thought. Now, I guess the thing I have to do is figure how long my system should run when the power goes out. Thanks!