hi, I recently posted a question on these fourums and had a flurry of posters trying to help (and they did) but i now have one more problem! Ill start from the begining!
I rently upgraded my 4870x2 to a 5870 and decided to sell the old one on e bay as it was only 5-6 months old and worked 100% fine! anyway i ran benchmarks, games etc to test the card was working fine. When i sold it and sent it to the buyer he sent me a message and said this.
Dear adam-knox,
Hi! your card arrived yesterday and i have started installation and I can't make it run at two GPUs.Card run ok in 2D but is not working on 3D (screen freezes).I have instaled latest catalyst driver 9.12(I have tried from 8.10 and up and still the same).I have got windows 7 ,64 bit,750W thermaltake psu,phenome 9850,4 GB memory,gigabyte MA790X-DS4.I 've instaled 4 new games and I couldnt run them.Before I was useing one card 4870 Toxic 512mb and everything was working fine.
Any ideas why your card is not working?Please let me know.I know that you are good seller,so I don't believe think that card is faulty.
I am waiting for a quick answer
Kind rgars"
Now i didnt get it right away then he sent this...
"Hello!
As I can see You have no time to anser me ...I just want to let you know that card is faulty(i can see you did try to open it or fix it,because there are big signs of screw driver on the screws).I have checked on three computers which are compatibile with that card and it is working only on one core.So in is not in a full working order.I am realy dissapointed.
Please let me know how would you like to resolve that problem.I am waiting for an anser till saturday.
Regards
Janusz
" anyway i messaged him back when i got the messages (and told him i had NOT opended the card!!
) and would give him a full refund if he sent it back. Anyway ive got it back today and its the same card etc but before i give him back the refund i want to test it to make sure theres nothing wrong with it! (which i dont belive there is!) How is the best way to test it/program to use to make sure that his problem was due to his machine and give him a refund and sell it on? thank you for ANY help you can give this poor little noob! 
sorry if this is in the wrong forum ><i was decided to put it in tech help of this one! i decided on this one as i just want to know if both gpu's are working and thought some one might be able to point me in the right direction... im starting to think i posted in the wrong forum sorry
I rently upgraded my 4870x2 to a 5870 and decided to sell the old one on e bay as it was only 5-6 months old and worked 100% fine! anyway i ran benchmarks, games etc to test the card was working fine. When i sold it and sent it to the buyer he sent me a message and said this.
Dear adam-knox,
Hi! your card arrived yesterday and i have started installation and I can't make it run at two GPUs.Card run ok in 2D but is not working on 3D (screen freezes).I have instaled latest catalyst driver 9.12(I have tried from 8.10 and up and still the same).I have got windows 7 ,64 bit,750W thermaltake psu,phenome 9850,4 GB memory,gigabyte MA790X-DS4.I 've instaled 4 new games and I couldnt run them.Before I was useing one card 4870 Toxic 512mb and everything was working fine.
Any ideas why your card is not working?Please let me know.I know that you are good seller,so I don't believe think that card is faulty.
I am waiting for a quick answer
Kind rgars"
Now i didnt get it right away then he sent this...
"Hello!
As I can see You have no time to anser me ...I just want to let you know that card is faulty(i can see you did try to open it or fix it,because there are big signs of screw driver on the screws).I have checked on three computers which are compatibile with that card and it is working only on one core.So in is not in a full working order.I am realy dissapointed.
Please let me know how would you like to resolve that problem.I am waiting for an anser till saturday.
Regards
Janusz
" anyway i messaged him back when i got the messages (and told him i had NOT opended the card!!


sorry if this is in the wrong forum ><i was decided to put it in tech help of this one! i decided on this one as i just want to know if both gpu's are working and thought some one might be able to point me in the right direction... im starting to think i posted in the wrong forum sorry
