Plugging in 5850 crashes rig for no reason - LTC

[seamusmcaffrey]

built my first rig recently using two 7950's and a 6970, works like a charm. recently bought a 5850 used since I have an extra PCIe slot... but I plug it in and it crashes cgminer. It isn't a power problem, it does it even if I only start up the 5850. Also does it if I try to start the other cards mining just with the 5850 plugged in (not mining).
Anyone have any idea why that would happen/how to fix? Other three cards work like a charm...

[cannonfodder]

recently bought a 5850 used

Are you sure the card even works?

[pekv2]

^

Also, with all cards plugged in, can you run cgminer using

Code:

cgminer -n

And reply with the results, with your cgminer config.

[seamusmcaffrey]

my friend got it working after reinstalling windows. i'd really rather not have to do that. but if i have to....

@ pekv will try within a few hours when i'm home from work. tonight is the night to fix this..

[seamusmcaffrey]

@pekv i got home and realized I dont actually know what that means. i assume that means to run it via command line but I don't actually know how to do that; i've always just used guiminer with this rig. if you want to provide guidance there i can try...?

far as settings, that means standard guiminer settings for a 5850:

thread concurrency: 6144
vectors: 1
GPU threads: 1
worksize: 256
intensity: 18

[pekv2]

oic, my misunderstanding, I assumed you were using cgminer. You can disregard my post above.

[seamusmcaffrey]

so anyways i broke down and reinstalled windows. the card initially worked, would mine and such with no problems. so i plugged in my other cards... and it no longer would work. neither would the other cards. and even after the 5850 was unplugged the other ones still wouldn't work.

so at this point i'm at a loss, but i'm probably just going to sell the card on. furmark tests on it check out and it works fine as a graphics card for display and such, but something is up with mining it.

now to reinstall windows yet again to get the original working cards, working again. yay.

[perhan007]

so anyways i broke down and reinstalled windows. the card initially worked, would mine and such with no problems. so i plugged in my other cards... and it no longer would work. neither would the other cards. and even after the 5850 was unplugged the other ones still wouldn't work.

so at this point i'm at a loss, but i'm probably just going to sell the card on. furmark tests on it check out and it works fine as a graphics card for display and such, but something is up with mining it.

now to reinstall windows yet again to get the original working cards, working again. yay.

I know its not such a big help but I had the same problem when I tried to combine a 4870 with 2 6970... it didnt work... the 4870 worked alone and the 6970 together but not all three at the same time. I couldnt solve the problem.

[seamusmcaffrey]

helpful at least to know i'm not alone

i'll just sell off the card and buy another 7950 haha, no worries