I just upgrade to a DX58SO mainboard with an i7-920, Nvidia GTX470, 6gb kingston hyperX and x25-m 80gb.
If the gtx470 runs at pciE x16 after 10min the system freeze and after the reboot it runs stable at pciE x4.
If I plug-out and plug-in the videocard, the speed is x16 again until the freeze (I think this is the time it switches to x4).
I tested this in both pciEx16 ports.
It looks like there is a problem to get a permanent x16 speed.
I tried the aux pwr connectors, but no difference.
The bios shows me regardless of x4 or x16 "Speed: 2.5GT/s " Does that mean both speeds are equal in speed?
Is this a known problem?
Is this a mainboard or videocard failure?
How can I fix it?
Thanks in advance!
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