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Drivers & Software

evgeniyosipov
Journeyman III

No CrossFire option in Radeon Settings 3x RX Vega 64 Liquid Cooling

Hello,

I have rig with win10 1803 and 3 videocards Vega 64 LC

CPU: Core i7 6900k

MB: Asus Strix x99 latest stable bios (non beta)

PSU: EVGA SuperNOVA 1300 G2

RAM: Corsair DDR4 64 GB

NVME: Samsung 960 Pro 1 TB

Videocards (all): AMD Radeon RX VEGA 64 LC (100-438284)

In radeon settings no option crossfire, in other rig with 2x Vega 64 LC (same videocards, pcie 3.0 x8-x8) this option exist and work normal.

All videocards placed in full PCIe 3.0 (x8 - x16 - x8), manual set in bios pcie 3.0 for all slots.

DDU all drivers and trying different version (18.3.4, 18.4.1, 18.2.1) - no luck.

In compute tasks all three videoards works without problems (windows and linux).

Thank you in advance.

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1 Solution

May be,

Ryzen 5 5600x, B550 aorus pro ac, Hyper 212 black, 2 x 16gb F4-3600c16dgtzn kit, Aorus gen4 1tb, Nitro+RX6900XT, RM850, Win.10 Pro., LC27G55T..

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4 Replies

May be,

Ryzen 5 5600x, B550 aorus pro ac, Hyper 212 black, 2 x 16gb F4-3600c16dgtzn kit, Aorus gen4 1tb, Nitro+RX6900XT, RM850, Win.10 Pro., LC27G55T..

Ok, tnx.

Interesting, can i switch off (disable) third gpu without pulling out video card from mb for CrossFire/mGPU activation?

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amdmatt​ may be able to help with that ?

Ryzen 5 5600x, B550 aorus pro ac, Hyper 212 black, 2 x 16gb F4-3600c16dgtzn kit, Aorus gen4 1tb, Nitro+RX6900XT, RM850, Win.10 Pro., LC27G55T..
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No.