hi all,

 

first i'm new to unraid.

Here is the problem, i have two GPUs, on the 16x rx570, and on the 4x gtx660.

i want unraid to boot with the gtx660 as gpu so that i passthrough the rx570 to a windows 10 VM.

 

i tried by searching in the bios if i can do so, and didn't find anything.

 

can someone help?

some information below if needed.

Model: Custom
M/B: Micro-Star International Co., Ltd B450 GAMING PLUS MAX (MS-7B86) Version 3.0 - s/n: To be filled by O.E.M.
BIOS: American Megatrends Inc. Version H.50. Dated: 11/07/2019
CPU: AMD Ryzen 5 3600 6-Core @ 3600 MHz
HVM: Enabled
IOMMU: Enabled
Cache: 384 KiB, 3072 KiB, 32768 KiB
Memory: 32 GiB DDR4 (max. installable capacity 128 GiB)
Network: bond0: fault-tolerance (active-backup), mtu 1500
 eth0: 100 Mbps, full duplex, mtu 1500
Kernel: Linux 4.19.94-Unraid x86_64
OpenSSL: 1.1.1d
Uptime: 

PCI Devices and IOMMU Groups

IOMMU group 0:	[1022:1482] 00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
IOMMU group 1:	[1022:1483] 00:01.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse GPP Bridge
IOMMU group 2:	[1022:1483] 00:01.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse GPP Bridge
IOMMU group 3:	[1022:1482] 00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
IOMMU group 4:	[1022:1482] 00:03.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
IOMMU group 5:	[1022:1483] 00:03.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse GPP Bridge
IOMMU group 6:	[1022:1482] 00:04.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
IOMMU group 7:	[1022:1482] 00:05.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
IOMMU group 8:	[1022:1482] 00:07.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
IOMMU group 9:	[1022:1484] 00:07.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse Internal PCIe GPP Bridge 0 to bus[E:B]
IOMMU group 10:	[1022:1482] 00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
IOMMU group 11:	[1022:1484] 00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse Internal PCIe GPP Bridge 0 to bus[E:B]
IOMMU group 12:	[1022:1484] 00:08.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse Internal PCIe GPP Bridge 0 to bus[E:B]
IOMMU group 13:	[1022:1484] 00:08.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse Internal PCIe GPP Bridge 0 to bus[E:B]
IOMMU group 14:	[1022:790b] 00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 61)
[1022:790e] 00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51)
IOMMU group 15:	[1022:1440] 00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Matisse Device 24: Function 0
[1022:1441] 00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Matisse Device 24: Function 1
[1022:1442] 00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Matisse Device 24: Function 2
[1022:1443] 00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Matisse Device 24: Function 3
[1022:1444] 00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Matisse Device 24: Function 4
[1022:1445] 00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Matisse Device 24: Function 5
[1022:1446] 00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Matisse Device 24: Function 6
[1022:1447] 00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Matisse Device 24: Function 7
IOMMU group 16:	[1987:5012] 01:00.0 Non-Volatile memory controller: Phison Electronics Corporation E12 NVMe Controller (rev 01)
IOMMU group 17:	[1022:43d5] 03:00.0 USB controller: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset USB 3.1 XHCI Controller (rev 01)
[1022:43c8] 03:00.1 SATA controller: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset SATA Controller (rev 01)
[1022:43c6] 03:00.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset PCIe Bridge (rev 01)
[1022:43c7] 20:00.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset PCIe Port (rev 01)
[1022:43c7] 20:01.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset PCIe Port (rev 01)
[1022:43c7] 20:04.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset PCIe Port (rev 01)
[10ec:8168] 22:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)
[10de:11c0] 25:00.0 VGA compatible controller: NVIDIA Corporation GK106 [GeForce GTX 660] (rev a1)
[10de:0e0b] 25:00.1 Audio device: NVIDIA Corporation GK106 HDMI Audio Controller (rev a1)
IOMMU group 18:	[1002:67df] 26:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Ellesmere [Radeon RX 470/480/570/570X/580/580X/590] (rev ef)
[1002:aaf0] 26:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Ellesmere HDMI Audio [Radeon RX 470/480 / 570/580/590]
IOMMU group 19:	[1022:148a] 27:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Function
IOMMU group 20:	[1022:1485] 28:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Starship/Matisse Reserved SPP
IOMMU group 21:	[1022:1486] 28:00.1 Encryption controller: Advanced Micro Devices, Inc. [AMD] Starship/Matisse Cryptographic Coprocessor PSPCPP
IOMMU group 22:	[1022:149c] 28:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Matisse USB 3.0 Host Controller
IOMMU group 23:	[1022:1487] 28:00.4 Audio device: Advanced Micro Devices, Inc. [AMD] Starship/Matisse HD Audio Controller
IOMMU group 24:	[1022:7901] 30:00.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 51)
IOMMU group 25:	[1022:7901] 31:00.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 51)

 

AFAIK, only Gigabyte motherboard allows you to pick a secondary GPU as Initial Display Output i.e. what Unraid boots with.

It's a BIOS option, not an Unraid option.

 

You have no choice but to swap the slot unfortunately.

thank you for the quick reply.

Ok with the swap but as you can see the rx570 will not be in its own iommu group.  

i guess i'll have to follow some steps from : 

 

https://youtu.be/qQiMMeVNw-o

Edited January 15, 20206 yr by p4r4b3llum