Need help finding a good psu

pathil123

Honorable
Jul 1, 2013
135
0
10,690
I recently upgraded my radeon 6950 with a r9 280x ever since then my pc will randomly shutdown completely I know it has to be the psu my specs are a amd 8350 a asus r9 280x 8gb corsair vengeance a asus m5a99fx pro r2.0 motherboard 64gb crucial m4 ssd 500 gb samsung hdd and a 850 watt chieftech psu also on the psu it says 850 watts but it says 749 max please help me find a good one like on newegg one that ain't over 200 and is reliable to get the job done no issues and thank you