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tampano

macrumors member
Original poster
Feb 15, 2016
49
3
I just bought and installed this card in subject. All working good after few hours.

If I'd want to try a Mojave update, can I apply the required firmware update or should I use the original I still have?

Plus, kind of related, if I click ALT on boot, I don't get a boot screen after the chime but the display stays black. Is it normal? I'm not sure if the RX 580 (not Mac edition) should give a boot screen out of the box.

Thanks

P.
 

tampano

macrumors member
Original poster
Feb 15, 2016
49
3
No boot screen unless you get it flashed. Firmware update will work though.
So I basically shut down the computer, hold the power until it flashes...and then pray it's all going good? :)
 

tsialex

Contributor
Jun 13, 2016
13,455
13,602
So I basically shut down the computer, hold the power until it flashes...and then pray it's all going good? :)
Read the first post of the thread:

 

khaan0001

macrumors newbie
Aug 16, 2020
7
1
Good evening!
System: Mac Pro 5.1, upgraded with Xeon 6 core, Radeon RX 580, 16Gb of RAM.
I upgraded from High Sierra to Mojave, everything works perfectly. Today I brought a Samsung Evo 1Tb on which I want to install Mojave. I initially tried with Carbon Copy Cloner 5 but I can't boot from the SSD because I can't see the boot disk screen. If i presed Alt (option) key, the screen remain black and computer not start!
How can I install Os X Mojave on my new SSD in this situation?
Thank you in advance!
 

h9826790

macrumors P6
Apr 3, 2014
16,656
8,587
Hong Kong
How can I install Os X Mojave on my new SSD in this situation?
Run Mojave install.

When you see this page, click "show all disks"
Started.png


And select the SSD
Select target disk.png
 

khaan0001

macrumors newbie
Aug 16, 2020
7
1
I try but if i select cloned boot drive at system preferences -> startup disk, monitors remain black and not boot.
If i select the disk ( ssd), for instal, from file installer, require restart. I click restart gave me this error
15976101702868725272938997941585.jpg



So i donloaded 5-6 times from App store and same error. So i take a instaler file on another source and i make a bootable instal drive via Terminal. But i dont know how use this without boot screen... :( . So... what option do i have?
 
Last edited:

khaan0001

macrumors newbie
Aug 16, 2020
7
1
Guys, i never gona THANKYOU enough!!! Work perfect after i mahe a clone with Disk Utility! Look at this beauty... Again, Thankyou!
 

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UKenGB

macrumors regular
Feb 21, 2010
168
42
Surrey, UK
Could an RX580 drive an Apple Cinema HD Display 30" from its DVI port, plus a 20" ACD 'passively' from each DisplayPort?

Reason I ask is that my current HD7950 can by default only drive the 30" and one 20". There's only 2 clock generators available so it needs an 'active' mini DP-> DVI adapter as they should provide their own clock signal. Anyway, with a suitable adapter on each mDP, I can run the 3 monitors.

However, what about an RX580? That is supposed to be able to run 5 monitors simultaneously, which rather implies that with my 30" on the DVI, I should be able to also run the 2 x 20" displays just with DP->DVI passive adapters. Can anyone confirm this?

It should only be temporary as like h9826790 I want to run a single 5120x1440 display (hence the need to upgrade from the HD7950), but until I can afford that, I need to run my existing 3 monitors and just trying to establish how I will be best able to achieve that.
 

rp7777

macrumors newbie
Jun 30, 2020
24
9
Could an RX580 drive an Apple Cinema HD Display 30" from its DVI port, plus a 20" ACD 'passively' from each DisplayPort?

Should be no problem.

I have an MSI RX580 Armor MK2 OC 8 GB in my Mac Pro with the following connected/running:

1) 1 x 30" Cinema Display - connected to DVI Port
2) 2 x 23" Cinema Displays connected to Display Ports with DP to DVI adaptor
3) 2 x 20" Cinema Displays connect to HDMI Ports with HDMI to DVI adpator

All adaptors are passive.
 

UKenGB

macrumors regular
Feb 21, 2010
168
42
Surrey, UK
Should be no problem.

I have an MSI RX580 Armor MK2 OC 8 GB in my Mac Pro with the following connected/running:

1) 1 x 30" Cinema Display - connected to DVI Port
2) 2 x 23" Cinema Displays connected to Display Ports with DP to DVI adaptor
3) 2 x 20" Cinema Displays connect to HDMI Ports with HDMI to DVI adpator

All adaptors are passive.
Perfect, exactly what I wanted to hear.

Thank you.
 

khaan0001

macrumors newbie
Aug 16, 2020
7
1
I dont have 30" display, but i have 3x24" HP monitor runing thru adapters and work perfect!
 

UKenGB

macrumors regular
Feb 21, 2010
168
42
Surrey, UK
It's the type of adapter that's crucial. The active adapters I have are miniDP->DVI, but I will need DP->DVI and don't want the expense of active ones, so good to know passive ones will be fine.
 

rp7777

macrumors newbie
Jun 30, 2020
24
9
It's the type of adapter that's crucial. The active adapters I have are miniDP->DVI, but I will need DP->DVI and don't want the expense of active ones, so good to know passive ones will be fine.
If it helps in any way - here are links to the adapters I bought/am using (Australian webstore as that is where I am located):

 

UKenGB

macrumors regular
Feb 21, 2010
168
42
Surrey, UK
Thanks. I think the crucial point is that the RX580 is designed and specified to be able to drive 5 monitors simultaneously at high resolution and has the hardware to do so, whereas the HD7950 does not claim to be able to do that for 3.

Just waiting for my RX580 now.
 
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