Ati 4870 Running 8x in 16x slot

Do you have two cards or just one?

Download GPUZ (free download) this will tell you what your bandwidth is. As long as this is correct then its not really an issue.

Mactronix

I've had this happen a few times. It's always been a seating issue for me. I had to use compressed gas in the slot last time, before reseating my card, and it fixed my issue just fine.

Thats good to know, we get this come up quite a lot. Its good to hear an actual reason for it for once.

Mactronix

hey guys, that happened to me today, after cleaning my case from dusk and re-assemble all the components, I boot my PC and look at GPU-Z, it show that my card running at 4x instead of 16x...

All problem is gone when i re-seat the card...  

 

i have just one card gpuz still says 8x after reseat says its running at 8x but it cant run at 16x but it wont

Have you double checked it?

Bad PCI-E slot on the motherboard?

I missed it because it was in lower case and things like that are usually posted in caps. The point still stands though if the bandwidth is ok then there is no issue.
Im so glad to be in the company of someone who has never ever missed anything on the forum before  

Mactronix

Reseated it cleaned it with a can of air changed power options to high performance gpuz says it may effect results but that didnt do anything read manual on pci i do have it in right slot has all necessary power i know you dont loose much performance \but its going to bug the crap out of me