Macpro 4,1 upgraded with a metal card.


I bought the following card a while back so I could upgrade my tower to Mojave. Works well except for one thing which is the boot screen is not visible. I was wondering if I could add the older card as a second video card, just for booting, then disconnect the monitor when not in use.

  1. Would it be too much for my tower or cause any heat issues?
  2. Does it run even when there is no monitor connected?
  3. Will it boot into Mojave if there is a second card not supported and non-metal, if the metal one is the one being used?

Thank you in advance for the guidance:

Radeon RX 580:

Chipset Model: Radeon RX 580

Type: GPU

Bus: PCIe

Slot: Slot-1

PCIe Lane Width: x16

VRAM (Total): 8 GB

Vendor: AMD (0x1002)

Device ID: 0x67df

Revision ID: 0x00e7

Metal: Supported, feature set macOS GPUFamily2 v1
Very true ut it's such a great machine with the excellent drive bays etc. Still works great and has lots of RAM. Just wondering about those questions for the rare times I need to see a boot screen. Unless there is an external card that does the same