john_05

Distinguished
Nov 4, 2011
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I just wanna know what version of pci-e is intel g31/g33.. Is it true that pci-e 2.0 are backward compatible with 1.1/1.0 slot? Thankss.
 
Without going into too much detail: Yes, you can run a PCIe2/3 GPU or device in a PCIe1 slot, or a PCIe1 GPU in the PCIe2/3 slot, but they will always run at the slowest common speed.

Just know that running modern GPUs in the $100+ range may be bottlenecked by the CPU/RAM in such an old board, though they will run just fine.