Jump to content
Sign in to follow this  
Followers 0
Larry_The_Great

SLI on hackintosh?

5 posts in this topic

Recommended Posts

Hello everyone,

I am in the process of upgrading my hackintosh which duel boots OS X and windows. I currently have one GTX 760 in my build and it simply isn't powerful enough when I game on windows. I was thinking about getting two GTX 970's and running them in SLI because apparently two 970's run much better than one 980 and for only a little more money. I have heard that OS X doesn't support SLI natively so I was wondering if anyone knew of any drivers that would fix this, or if it would even boot with two cards in SLI? I'm hoping that if there is no way to support SLI then the hackintosh will automatically only use one of the GPU's and windows will use SLI. Can someone please clear this up for me as I want to buy the GPU's when they go on sale just before christmas. Thanks.

Share this post


Link to post
Share on other sites
Advertisement

FCPX (10.1 and newer) will use two AMD cards in a way that's quite reminiscent of CrossFire on a MacPro - don't now if that's also true for a Hackintosh. Unfortunately, that's the only know example of such a function on OS X, and I suppose it's more third party developer's fault than Apple's, since Apple's FCPX can use it's particular form of CrossFire. Theoretically, OS X could support both CrossFire and SLI, since it supports out of the box using as many GPUs as your computer can handle, but they work as individual cards - i.e.: if you have two GTX 970 cards, you can plug one or more monitors to each card and boot OS X normally with this setup (without need to use a SLI cable), but the apps will only use the GPU that's connected to the monitor where their main windows are open, as far as I know. If you're asking if OS X would boot with a SLI cable connected, well... I'm not sure it would, but if it's the case, simply disconnect the cable when booting to OS X, and keeping it connected when booting to Windows.

Share this post


Link to post
Share on other sites

I haven't heard of anyone having problems related to the sli cable specifically, I don't think that makes a difference, but dual cards in general can be problematic. One problem I've read about a few times is that os x will only want to display on one card, and the card it chooses will be random on boot. I don't know if there is a solution to that currently but it seems to be a problem specific to the GPU/mobo combo.

Share this post


Link to post
Share on other sites

So if I set up the bios so that I have both GPU's connected via an SLI bridge and connect both my monitors (I have two monitors) into the motherboard IO instead of directly into the graphics cards does anyone know what would happen?

Share this post


Link to post
Share on other sites

So if I set up the bios so that I have both GPU's connected via an SLI bridge and connect both my monitors (I have two monitors) into the motherboard IO instead of directly into the graphics cards does anyone know what would happen?

it would use the cpu's integrated graphics. The nvidia GPUs would still be detected and could be used for some things that use cuda.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  
Followers 0

  • Recently Browsing   0 members

    No registered users viewing this page.

  • Similar Content

    • By kushwavez
      A really good motherboard with macOS compatible bult-in Wifi & Bluetooth

      ASUS Z170-Deluxe (with Wifi)
      BIOS: v3801
      CPU: i7-6700K 4.0 to 4.2 GHz (w/o OC)
      RAM: 1x 16 GB Corsair DDR4 2400 MHz
      GPU: Intel HD 530 (Headless) & ASUS Radeon RX 5700 OC 8 GB
      Audio: ALC 1150
      Ethernet: I219V2, I211-AT
      WiFi & Bluetooth: Broadcom BCM94360HMB Half-Mini-PCI-E
      More Specs: https://www.asus.com/Motherboards/Z170-DELUXE/specifications/
       
      Catalina 10.15.4 - Windows 10
      What is working:
      BCM94360HMB Wifi and Bluetooth AirDrop, Handoff, FaceTime, Messages, App Store, iCloud, etc. Intel HD 530 (QE/CI tested, but now I'm using it in headless) Sleep RX 5700 (QE/CI with 2 1080p monitors connected) Sound USB Ports Two Ethernet ports macOS with a light OC (4.12 GHz - 4.5 Ghz, XMP, ASUS optimal) No problem so far ASUS HyperKit with a KINGSTON NVMe SSD - 250 GB  
      What is not working:
      -  
       
      Not tested:
      VideoProc says that Hardware Decoding\Encoding is fully supported and enabled on both HD 530 and RX 5700 but I didn't test it Thunderbolt (no equipment)  
      Issues:
      None  
      BIOS Settings:
      Boot\CSM (Compatibility Support Module): Launch CSM: Disabled Boot\Secure Boot: OS type: Other OS Secure Boot State: Disabled Advanced\System agent (sa) Configuration: VT-d: Enabled Graphics Configuration: Primary Display: Auto iGPU Multi-monitor: Enabled RC6(Render Standby): Enabled DVMT Pre-Allocated: 128M Advanced\PCH Storage Configuration: SATA Mode Selection: AHCI HyperKit: Enable (if you have NVMe SSD with ASUS HyperKit) Advanced\CPU Configuration: Intel Virtualization Technology: Enabled CPU- Power Management Control: Intel SpeedStep: Enabled CPU- C-States: Enabled Intel SpeedShift: Enabled  
      Getting ready for installation:
      Download the bootpack (Clover v5107): Click here -> asus-z170_clover_5107.zip  
      Installation:
      Create an installer with any method you know (- Mac: createinstallmedia - Windows: Transmac, Vmware, Win32diskimager) Copy my Clover folder to the USB's EFI folder Boot with the Installer USB If you have any problem (kp or freeze) boot with config_debug.plist to see what causes the issue  
      Post Installation:
      Download Clover Configurator and generate a new Serial Number for yourself  
      Some pictures:
       

       




       
       
       
      Catalina & Windows 10 Dual-Boot (clean install, on one drive):
       Boot into your Mac installer, Create 2 partitions in GUID table (1 for Win (I used FAT32 but I think it doesn't matter what you choose), 1 for Mac)
       Install Mac, boot with your USB, mount your EFI partition (use terminal or an EFI mounter app), create an EFI folder (if there is no folder), copy the CLOVER folder I attached to the EFI folder, restart
      Boot into your Win installer, Format the partition you created for Win, install. 
      Now, it's automatically booting into Windows. To use Clover open cmd in administrator, type: 
      bcdedit /set {bootmgr} path \EFI\CLOVER\CLOVERX64.efi  
      You're done! It will booting into Clover when you start the system, and you can select Win or Mac (or another OS if installed on a 3rd partition).
       
      IF YOU GETTING ERRORS DURING WINDOWS INSTALLATION (could not be formatted, etc):
      Make sure you have GPT partitions, and GPT (UEFI) installer, also disconnect all external storage drives (except the installer USB)  
      Mounting EFI from Windows:
      Open cmd in administrator mode and type: mountvol b: /s (This will mount your EFI) Open Total Commander or Explorer++ in administrator mode to manage EFI mountvol b: /d (This will unmount your EFI)  
      Notes:
       
      2020.03.26: Updated to 10.15.4 -> Updated WhateverGreen, Lilu -> Updated Clover to v5107
      2020.03.23: Removed "EmuVariableUefi.efi" -> deleted, caused false nvram map, now it's native, updated Clover to v5106
      2020.02.11: Updated to 10.15.3 -> No problem when/after installing
      2020.01.19: Added ASUS HyperKit NVMe SSD to the "What is working" list
      2020.01.12: Tested system with OC, added more informations to BIOS settings
      2020.01.11: Added SmallTreeIntel82576.kext for 2nd Ethernet, Tested Ethernet ports
      2020.01.11: First upload
       
    • By kevpatts
      So I'm new to OpenCore, I've been a Clover user for too long but it's finally totally failed me after a motherboard upgrade, I couldn't boot to Mac OS.
       
      So I gave OpenCore a go using the basic config and boom, booted first time! I'm an instant convert!
       
      The main problem I have is that I have a triple boot machine with Windows 10, Ubuntu and Mac OS on three separate drives. With OpenCore I can ONLY boot Mac OS. It gives me an option of "BOOTCAMP Windows" but if I select it it boots to the Ubuntu GRUB menu (??) and then won't load the linux kernel! There is no option that tries to boot Windows.
       
      It looks like multi-OS support is not a priority right now, is this correct? Is there anything I can do to help test/code/progress this aspect of the project?
    • By tlac
      Simple steps to create macOS Installer for Vmware on Linux or Windows
       
      This guide describes how you can create a Vmware image (vmdk) for installing macOS in Vmware. Most tutorials about this topic require an ISO installer file that was typically created in macOS or you have to download some preinstalled image file from unknown source. None of them are ideal. But if you follow the steps below, you will not need to access macOS and will use official and trusted sources.
       
      First of all download gibMacOS from here and set up
      https://github.com/corpnewt/gibMacOS
        Run the script to download the full macOS installer:
      on Linux: gibMacOS.command on Windows: gibMacOS.bat  
      Install qemu-img converter

      on Linux (Debian or Ubuntu):
      install qemu-tools package

      on Windows use this installer:
      https://qemu.weilnetz.de/w64/
      when you run the installer, it is enough to select the "tools" and "dll library".
       
      Convert the downloaded BaseSystem.dmg to Vmware image
      run the following commmand in that directory where BaseSystem.dmg was downloaded (somewhere here: gibMacOS-master/macOS Downloads/publicrelease/061-44387 - 10.15.3 macOS Catalina)
      on Linux:
      qemu-img convert -O vmdk -o compat6 BaseSystem.dmg recovery.vmdk on Windows:
      c:\"Program Files"\qemu\qemu-img convert -O vmdk -o compat6 BaseSystem.dmg recovery.vmdk  
      Use the previously created image to install macOS in Vmware
       
      I assume you have a patched and working Vmware already. If not, find another guide but in nutshell:
      - confirm the VT-x is supported on your Intel machine (if you are on AMD you may not able to virtualize macOS or you need to do more work)
      - install VMware Workstation or VMware Workstation Player (free for non-commercial use)
      - use an unlocker to patch the Vmware to support macOS guest
       currently this works well: https://github.com/BDisp/unlocker/
       
      So when you are here you have a patched Vmware and a Vmware image (recovery.vmdk).
      Run Vmware and create a new virtual machine by choosing macOS guest. But add another hard disk as well with selecting to use an existing virtual disk. Browse the recovery.vmdk. You will get a warning about the image is not in the latest format but choose to keep the existing format.
      After you installed the macOS, install the vmware tools as well.
       
      Tested on Windows 10 with macOS Catalina 10.15.3 in Vmware 15.5 Player
       
      Comments are welcome.
       
    • By johnny28
      Ho una tastiera wireless Apple Magic Keyboard con tastierino numerico (layout italiano), con Catalina OK, ma quando la uso con Windows 10, ho un piccolo problema i tasti "<" e "\" sono scambiati, nel senso che quando pigio sul tasto "\" ottengo invece "<" e viceversa. C'è modo di correggere il problema, senza dover ricorrere ad un software a pagamento come "Magic Keyboard Utlities" ?
    • By kingoffright
      Dear all,
       
      I have a external harddisk about 500GB, I installed the clover into it and the harddisk is GPT format, below is the 3 partitions details:
      FS01: EFI - disk0s1 - fat32
      FS02: install mac  image - disk0s2 -  hfs+
      FS03: install windows 10 - disk0s3 - fat32
       
      I can use this external harddisk to install Mac without issue, I use below steps to install windows 10
      enter the FS03:
      cd to efi/boot/ and excuete bootx64.efi
      after pop up the windows install screen, i click next and it shows error 'A media driver your computer needs is missing...' and the installation can not go any further.
      Firstly I use ultraiso to write the windows 10 image to a flash disk and no issue to start install window 10 so the image is working fine. Since I dont know how to write
      a wiindow installation image into harddisk partition, I used winrar extra all the files into disk0s3, am I missing some steps or actually clover not support to install windows
      by partitions, apprecating any helps.
       
×