Using a PCI-E 1x to 16x riser card for graphics card

[fireboy1]

I am probably asking a stupid question but hey you wont learn if you don't ask so here it goes.
I want to add a second graphics card to my XPS 8700 with a sapphire HD 7790 Dual-X OC graphics card but the only PCI-E slot I have left is a PCI 1x.
I have a Rif6 Pro PCI-E1x to 16X riser card. I want to know if adding a graphics card of equal or higher capabilities and using crossfire to join them would work for gaming or will it not be advisable to do so?
I would appreciate any and all help. I don't want to do something that will work or maybe even damage my system.

 

[robax91]

I don't think a 1x slot has the bandwidth to do what you're wanting. Usually getting a better single card is the better option until you get into the $400 range of cards. Crossfire isn't going to work for you, and if it does one card will be running much slower giving you more problems than it will boost the performance. If you do add it, don't enable crossfire. It could prob run in the background to mine if anything.

 

[bignastyid]

The card would still be limited to 1x bandwidth and would be massively bottlenecked. No matter what you add the motherboard won't support crossfiring two cards.

 

[darkspartenwarrior]

Does you motherboard not even have one x16 or x8 slot?

It'll be way better to take out whats currently in the x16/x8 slot if possible, your card will have to run at x1 speeds with the x1>x16 converter and will be massively bottlenecked.

If a converter is your only option go for a cheaper card like GTX750 or R9 260 series card, there wont be any performance difference because of the bottleneck.

 

[bignastyid]

Does you motherboard not even have one x16 or x8 slot?

It'll be way better to take out whats currently in the x16/x8 slot if possible, your card will have to run at x1 speeds with the x1>x16 converter and will be massively bottlenecked.

If a converter is your only option go for a cheaper card like GTX750 or R9 260 series card, there wont be any performance difference because of the bottleneck.

It has 1 16x slot and the OP currently has a 7790 installed in it. He is wanting to add a 2nd for crossfire. Did you even read the description?

 

[fireboy1]

I was afraid it wouldn't work, so i guess I will have to just settle for the one graphics card for now and upgrade a little later if this one doesn't meet my needs. I cant thank you enough bignastyid. You just saved me a lot of money that would have been wasted. That's why I come here where the experts are. I apologize for not replying sooner. I am a firefighter and have just slowed down enough to fire off a response. I hope I can return the help some time soon though not in an official capacity of course, lol.

 

[Flush Taylor]

hi am am useing dell demension 3100 with onboard graphics. but i have went and bought a pci e x1 raiser to pcie express x16 and it wont display a picture when connected with gt620/64bit/1g. i only want to use 1 gfx card being the one with the raiser. can u help me please