The GTX 480 is PCIE 2.0 16X, while newegg says the IP35 only supports PCIE 16X... Is it backwards compatible?
edit: I heard that 1.1 can run 2.0 cards and is sufficient?
More aboutabit ip35
PCIE lanes are backwards compatible, so they will work perfectly with v2.0 and 1.0.
"However, PCI Express 2.0 offers twice the bandwidth of PCI Express 1.1, by doubling the throughput per lane from 250 MB/s to 500 MB/s. A x16 PCI Express link hence offers the same bandwidth as PCI Express 2.0 at x8."