Topic Title: HD7990 Crossfire weird gpu load balance
Topic Summary: Catalyst 13.12, gpu 2,3,4 heavy load browsing web after gaming
Created On: 04/20/2014 07:32 AM
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 04/20/2014 07:32 AM
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Joined: 04/20/2014

Hi All,

I've a weird scenario on my dual HD7990 setup.

Here are the steps I done:

1. Boot up PC with Crossfire X enable.

2. Ensure you have some monitoring tools, e.g. MSI Afterburner/GPU-Z (Catalyst will be a bit hard to read data per GPU but will get you same result).

3. Get into any games, with Crossfire X profile, e.g. Anno 2070, Diablo 3.

4. Play the game for some times then quit.

5. On the clean desktop, monitor of each GPU load, it should be pretty nice like this:

GPU 1 - 0-10%, GPU 2-4: 0%

6. Wait for a while, then start any web browser and browse website.

7. Monitor the GPU load, GPU 1, 0%, GPU 2-4: 60% then keep load up till 99%.


If you did not noticed and keep browsing web, yea, you will get a pretty loud fan noise for both the cards.

Because god damn it, this 2 cards are running weird behavior for reading AMD support forum.

Things I wanna know, are there any hotfix for this weird behavior?


I7-3820K|Asrock X79 Extreme 11|2x8G Crucial 1600Mhz|2x Sapphire HD7990|Zalman 1250W PSU|2x WD 320G BLUE RAID0|LianLi X2000

 04/20/2014 12:54 PM
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Case Modder

Posts: 841
Joined: 01/05/2013

Provide substantially better cooling and have a fire extinguisher nearby.




Non-noob components.

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