Yes this will work,
however keep in mind that PCI-e 1.0 has a data rate limit of 250MB/s ,
and PCI-e 2.0 has a data rate limit of 500MB/s,
So using a 2.1 card in a 1.0 bus limit it's data rate,
and will not utilise the card to the fullest of it's capabilities.
New cards that support PCIe 2.0 are backward compatible with PCIe 1.1, thus you can install latest PCIe 2.0 cards on x16 PCIe slot of current or older motherboards. Latest PCIe 2.0 standards offer double the bandwidth of current PCIe 1.1 standards. The majority of single graphics cards are yet fast enough to fully take advantage of the wider bandwidth of PCIe 2.0. It is the multi-GPU or the multi-card set up that benefit most from PCIe 2.0. PCIe 2.0 and PCIe 1.1 use the x16 PCIe slot format but the PCIe 2.0 slot is capable of sustaining 150 watts while the PCIe 1.1 slot is only capable of 75 watts max. PCIe 3.0 is electrically compatible with previous generations but uses a different encoding scheme to increase the throughput.
Only graphics cards are inserted into a PCIe x16 expansion slot.
Most likely for dual graphics cards.
Yes. PCI Graphics Cards are backwards compatible.
PCI or PCI Express
The expansion slot that uses inbound and outbound data channels called lanes are PCIe. The expansion slot that has replaced the Accelerated Graphics Port on all new motherboards are PCIe.
Unless it's a very old computer, your graphics card will be either PCIe (PCI Express) or AGP, and if it was bought within the last... Say, four and a half years, it will definitely be a PCIe setup for graphics with your other component cards running on a PCI bus. If it was a gaming computer sold post-2003ish it will also have a PCIe bus.
computer full form
As of right now, the fastest expansion bus found in a standard PC is a PCI-E or often seen as PCIe (PCI-E or PCIe stands for Peripheral Component Interconnect Express)Installing a PCIe card into your PC may be done only if the motherboards expansion slot will fit it. PCIe cards can fit into larger slots, but not smaller slots (obviously).
I presume that you mean to ask whether a PCIe 3.0 card can be used in a PCIe 2.0 slot on your motherboard. The answer to that question is yes. PCIe standards are all backward-compatible, so do not sweat that. For best performance, however, you would prefer to put a PCIe 3.0 card in the same type of slot.
The expansion cards will not function properly without the right amount of power and the motherboard can only give so much power though the PCIe slots. Some expansion cards such as graphics cards require a lot of power so it is easier to get that power directly from the PSU.
A PCIe x16 graphics card will not work in a normal PCI slot. PCIe or PCI Express is a new standard in expansion interfaces. PCIe is physically and electronically incompatible with PCI slots.