R7 250x compatible?



your power supply is not good enough


best you can do without upgrading it is a gtx 750 ti that does not need a 6-pin pcie cable from the power supply
 


you are assuming your power supply is of good quality, and that you can nearly max it out without it blowing

really should not load psu's beyond 80%, that is assuming they can actually deliver the wattage they claim


especially if they are crap quality, because cheap makers often straight up lie about this and exaggerate the wattage