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Best PSU for Radeon RX 580 Gaming 8GB (Low power causes crash?)

I recently bought a MSI Radeon RX 580 to upgrade from my old 2GB card. After installing, system booted slowly, noticeably slower than before. Once I got all the software and drivers installed (so I thought) I tried playing XCOM Enemy Unknown. The game ran flawlessly with the old card, although at medium settings. I started experiencing crashes, hard crashes to black screen then system shut itself off. After quite a bit of T/S I found a more recent driver on the manufacturer's website that enabled me to not only play the game but with near max settings. Before the driver update I could not even use higher than 1024x768 screen resolution in-game (but it ran). However, to my great disappointment I had another crash like before.
I am wondering if my new card might be pulling more power than the PSU can deliver especially after running hot for a few hours (fans spinning up, etc)?
This RX580 uses the 8-pin PCI-e connector, whereas my old card didn't need direct power connection at all. My question is, could lack of power be what is causing the crashes (black screen, buzzing sound, then PC shuts off)? Or, is it simply driver related/XCOM lack of optimization? Here are my specs:

MSI 990FXA Gaming MB
AMD FX-8370 CPU
PSU Seasonic S12 II Bronze - 520W
16 GB (2x8) Kingston HyperX RAM
WIN 10 Home Edition

NOTE: No overclocking at all.
Reply to zombi3killer
6 answers Last reply Best Answer
More about psu radeon 580 gaming 8gb low power crash
  1. Sounds more like a PSU issue and not a lack of power.
    Reply to SR-71 Blackbird
  2. Hello SR-71. PSU issue as in failing or not compatible somehow? Are you recommending I get a higher wattage, gold standard PSU or is there some testing I can try? This only started once I added the new card. Could also be software related and nothing to do with the PSU but I'm guessing.
    Reply to zombi3killer
  3. Failing and unstable in my opinion.

    Not a fan of the older S12 platform
    Reply to SR-71 Blackbird
  4. Best answer
    PCPartPicker part list / Price breakdown by merchant

    Power Supply: Corsair - TXM Gold 550W 80+ Gold Certified Semi-Modular ATX Power Supply ($52.98 @ Newegg)
    Total: $52.98
    Prices include shipping, taxes, and discounts when available
    Generated by PCPartPicker 2017-12-07 13:41 EST-0500
    Reply to SR-71 Blackbird
  5. Thanks for that! I'll pick one up just to be safe. Thanks again.
    Reply to zombi3killer
  6. zombi3killer said:
    Thanks for that! I'll pick one up just to be safe. Thanks again.


    Good deal , then if there is still an issue it will be easier to diagnose.
    Reply to SR-71 Blackbird
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