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Radeon 580 uses 185 watts 190 tops. 400 Watt PSU is more than enough for this PC
Sorry, there was a problem. Please try again later.500w is the recommended PSU so that it would work across a wide variety of different quality power supplies. The included PSU in this model is a gold rated PSU. The 580 will run without issue at all.
Sorry, there was a problem. Please try again later.Based on "HP Pavilion 690-0034 Gaming Desktop PC Product Specifications" https://support.hp.com/au-en/document/c06124757 Internal 400 W PSU - 400 W SFF (Platinum) Full range 115V/230V - 92% efficiency
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