Asus 4A78T-E PCI-e slots not working


Have been using this motherboard for couple years, with a Single BFG GTS250 Nvidia video card...then the hard drive new harddrive, and reinstalled win7 home premium..had to use onboard video to load win7, windows would not detect the BFG card, so loaded the chipset drivers for the motherboard as well as all the other drivers on the disk from Asus..the BFG still would not work, so installed an ATI video card from a working Dell 980...still will not detect the add-on video cards in either running a Corsair 850w power supply and have been for well over a year...EVERYTHING seems to work fine in this PC except for the PCI-e slots...any ideas?? I have several years of building computers from scratch, but this one has me puzzled...i have changed the bios around several times from VGA to pci-e and back, still will not recognize the cards...HELP>>!! PC works fine as long as i'm using the on-board video...
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More about asus 4a78t slots working
  1. Hi..

    What the mobo model?

    Seems, the mobo is damaged, you change it or RMA if still under warranty

    (warranty varies from 2 to 5 years depending on brand)
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