I currently have a thin mini ITX system running with a GTX 1050 working with a non-powered riser (seems like Gigabyte makes the power management run well on their boards). During gaming and benchmarks I get 80 to 85 W power used, measured at the wall. So this is after the efficiency loss converting from DC to AC.
Right now I am using a 150W AC power adapter from Dell but I want to downsize that. I found two ASUS power bricks that would look good with my setup. (the following links are just for reference, I can buy these bricks used elsewhere at lower prices)
This one at 120W: http://store.asus.com/us/item/201412AM300000015/ASUS+120W+Notebook+Power+Adapter
And this one at 90W: http://store.asus.com/us/item/201501AM080000048/A47375-ASUS-90W-Notebook-Power-Adapter
Both have a voltage compatible with my system. The 90W is about only half as big as the 120W one, but am I cutting it way too close if I go with the 90W adapter? What would be a safe minimum for my system?
Right now I am using a 150W AC power adapter from Dell but I want to downsize that. I found two ASUS power bricks that would look good with my setup. (the following links are just for reference, I can buy these bricks used elsewhere at lower prices)
This one at 120W: http://store.asus.com/us/item/201412AM300000015/ASUS+120W+Notebook+Power+Adapter
And this one at 90W: http://store.asus.com/us/item/201501AM080000048/A47375-ASUS-90W-Notebook-Power-Adapter
Both have a voltage compatible with my system. The 90W is about only half as big as the 120W one, but am I cutting it way too close if I go with the 90W adapter? What would be a safe minimum for my system?