i just bought an alienware 17 2015 model and i have noticed that gpu (r9 m290x) has very bad performance and very poor results in userbenchmark! after i checked everything and changed drivers too many times without any improvement i figured out that in bios settings ac adapter says 180w and my psu is 240w. also i see that inside power jack a plastic part is missing! my question is if i change the dc port (i already order) will the problem with psu watts and gpu performance been sovled or i have to check for something else?
Not saying that , but due to it not being standard ATX POWER is harder to gauge.
i will start by changing the power jack that i already know something is broken inside of it and i wish power will raise to 240w and make laptop's gpu works again as it must! any other suggestions for this problem? what other things i have to check or causing the low performance of the gpu?