my desktop configurations are ASrock Z170 Pro 4 motherboard, one XFX R9 380 4GBs and another Sapphire R9 380 4GBs Nitro. Can I enable Crossfire on this config? If so, how can I enable it and what driver should I download?
If you have a crossfire bridge, and your motherboard is crossfire compatible (check your user manual) then yes. Just download the latest drivers. Windows Notification will prompt you to tell you to set it up.
No, I don't have a crossfire bridge because I thought the 300 series communicate with each other through PCIE, instead of the bridge for the older version graphics. My mother is crossfire compatible as well. Last night, I have just successfully enabled the crossfire configuration on the Catalyst Control Center; however, the second graphics card fan is not spinning. I do not know the reason for that. My power supply is a Corsair 750 W and I think it would be enough power for the second graphics card. Could you help me?
Sorry, your correct. I thought it was mobo specific.
The fan on the second card, when is it not spinning? It should turn off when not in use using AMDs ZeroCore tech, it uses something like 0.01w/h when in that mode. Keep your case open and run a crossfire enabled game, it should spin up then. Let us know the outcome.
Yes, the second graphics card spinned up when starting the game Call of Duty: Black Ops 3; but when I stay station in the game when nothing in the game is happening it will stop. Despite that, it will only spin when in the UEFI mode, in which my PCIE link speed is Auto (because it is not forced gen 3, I thought that is the case). If this is the normal case, the amd dual graphics did not improve much in Black Ops 3. Should it be this way?
My setup is older 7990&7950. But I use HWiNFO and RTSS so in game I can see whats doing what...
And it depends on the game, I'm not sure about COD (Battlefield man) but if the game isn't too intensive it wont use both. But if you ran a benchmark like 3DMark it will use all of the power you have. You also need to think about your CPU, your mobo in general, and your power supply but yours should be fine.
I cant remember the tool I used back when I first started with Crossfire, but this program will tell you as it runs what cards are working, how much etc. A general rule with Crossfire is if it can use it it will.
PCIe bus speed, depends on your mobo, what is it? AMD ones wont until Zen is out, ist gen2 atm. Intel have for a while.
UEFI mode, my GPUs aren't. As far as I know that's only for fast boot, but again your Crossfire arrangement is new to me.
Hope this kinda helps.
Thank you so much for the software recommendation. I think that helps a lot. My PCIE bus speed should be 3.0 *16 according to UEFI. I will test my graphics card to see if how effective it is in gaming.
Sorry, I didn't see your mobo in your opening post. Yep should be working at PCIe3 x16 like you said. May be worth checking with that HWiNFO, it will say what bus is doing what. I'm sure it is.
Remember to click "helpful" on posts that have if you can, if all is well that is.
disable windows ulps in registry , and as far as scaling go , it depends on the game , some scale excellent , others actually get worse fps with cf then without , also what cpu are you using
ULPS: How to disable
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