5830 doesn't respond when mining...

[Chick]

So this only happens with I mine with the first card in the rig, the monitor freezes and Catalyst attempts to reset the card because it isn't responding, but sometimes it isn't successful so I have to restart the whole system.

The other 3 cards work perfectly fine when I start mining with them, the problem only lies in the 1st card.

I set the core to 1000mhz and the memory to 385mhz.

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[hennessy]

1000mhz is quiet high... maybe you have reached the cards limits. Every card is different, some can do 1050, some only 900. One of mine only does 950.
Try with normal memory clocks and see if that helps. You can check for artifacts with OCCT or any other tool (They may give different results). If you get any artifact, thats probably the card's limit.
You could also try moving the problem card to the best-vented slot to get it cooler. This also has the advantage that it's not the primary display and crashes may recover easier.

[Chick]

1000mhz is quiet high... maybe you have reached the cards limits. Every card is different, some can do 1050, some only 900. One of mine only does 950.
Try with normal memory clocks and see if that helps. You can check for artifacts with OCCT or any other tool (They may give different results). If you get any artifact, thats probably the card's limit.
You could also try moving the problem card to the best-vented slot to get it cooler. This also has the advantage that it's not the primary display and crashes may recover easier.

You're right, I put it to 980 and it does quite well.

[pandemic]

1000mhz is quiet high... maybe you have reached the cards limits. Every card is different, some can do 1050, some only 900. One of mine only does 950.
Try with normal memory clocks and see if that helps. You can check for artifacts with OCCT or any other tool (They may give different results). If you get any artifact, thats probably the card's limit.
You could also try moving the problem card to the best-vented slot to get it cooler. This also has the advantage that it's not the primary display and crashes may recover easier.

You may be able to do 1000 if you bump the voltage up a bit. Of course, do so at your own risk.
You're right, I put it to 980 and it does quite well.