A PCI Express 3.0 Video Card into a PCI-E 1.0 x16 slot

Perhaps I'm trying to push my mobo too hard, but I think I have read that PCI-e 3.0 is back compatible to previous PCI-e specifications. But 3.0 into a 1.0, is it possibly asking too much?

I'm thinking about buying an AMD Radeon HD 7750. My mobo is an Asus p5g41-m le

Solution 1:

Yes, PCIe 3.0 is backward-compatible with all prior PCIe implementations.

Reference Wikipedia: PCI Express

However, because PCIe 1.0 maxes out at 2.5 gigatransfers per second (GT/s) vs. PCIe 3.0's 8 GT/s, your video card may not perform as well as you would expect when installed in a PCIe 1.0 slot.