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原帖由: Mark Symms ,

标题:

2009 Mac Pro won't boot with new RX 580

文本:

Hi, Thanks in advance for any help.  I have a 2009 Mac Pro -> 5,1 and upgrade CPUs running OS X 10.13.6.  I wanted to upgrade my video card.  I have tried the Vega 56 and now the Sapphire Nitro RX 580.  Using both Aux power ports. These were my results:

When I tried the Vega, it booted fine, BUT NO VIDEO.  Thinking it may be a bad card I returned for a replacement and am waiting on that.  Resigned to save for a PC build.

So I then purchased the RX 580 (nice blue card)!  When I installed the card I get nothing.  Just a click from the PSU and that’s it.

So I put my stock GT 120 card back in and everything is fine.  Boots just fine.  I tried the RX 580 again in the other x16 slot.  “Click” was all I got.  GT 120 back in boots fine.

I almost think it is a PSU issue; that maybe it is not putting out the power needed.  The voltages on the aux ports is fine, but I have no way to test with a calibrated load to see if indeed the PSU is putting out the power it is supposed to.

Any thoughts?  Am I doing something wrong or forget to do something?

设备:

Mac Pro 2009-2012

状态:

open