Q: the graphics card i wanna get x16 interface my pci-e bus width is 32 bit what does that mean? is it the same thing? will the graphics card work on a 32-bit pci-e?
A: hi mate there are no 32 bit pci-express interfaces,the interface you are mentioning is the pci-bus,these are the standard 32bit pci slots used for soundcards,nics(network interface cards) and wireless pci cards pci-express cards have a maximum bandwidth of x16,and when used in a sli configuration with the maximum x16 bandwidth per card then the two cards equate to a total of x32 bandwidth,however older sli motherboards cheated the user by halfing the pci-express x16 bandwidth to x8 when used in sli,but most modern and boards manufactuered within the last 12 months use the full x16 bandwidth per card/slot to discover the pci-express interface you have download and run(no need to install) the utility "gpu-z" from http://www.techpowerup.com/gpuz/ look under the "bus interface" entry and you will see the type of graphic interface you have in your p.c,plus loads of other information any problems let me know good luck mate !