Problem with ATi 4870x2

hi guys,

I am having problems with my PC since the moment I've bought it. It has never done what I've expected it to do, it is slow and useless (in gaming). I don't know why, but ALL games I play lag (even on low spec.).. I've just found in GPU-Z that the card is running in PCI-E x8 (the second chip is even in x1 mode) all the time, even if I play games or try any render test. My motherboard does support PCI-E 2.0 x16, so why it is running like a piece of ..? sorry but I'm really upset of this. Or can it be a problem with any other component ? I have latest CCC and drivers for all of them. Also, no overclocking has ever been done. here are my PC specs :

CPU : Intel C2Q Q9400 @ 2.66GHz
GPU : ATi 4870x2
PSU : Fortron 1000W
RAM : Kingston 4GB (2x2GB) DDR2 @ 800MHz
HDD : Seagate 1TB SATA
OS : Win7 x64

pics from GPU-Z :
card (chip) 1

card (chip) 2

thank you for any effort.
2 answers Last reply
More about problem 4870x2
  1. Did you install the card in the board's PCIe 2.0x16 slot? It is usually the LONG slot closest to the CPU..
  2. of course I did
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