Do Dual PCIe Express Extenders Work for 2 gpu's from 1 PCIe express slot?

Toggle sidebar Toggle sidebar
E

Elf_Knight

Honorable
Nov 9, 2013
650
1
11,015
Hello!

I am trying to convert my gaming rig into a small form factor. I was looking at PCIe express extenders and saw one on Amazon that allows to have two gpu's or 1 gpu and 1 wifi card, for example, from only 1 native expansion slot on the motherboard. There are no reviews of the product and it is not very expensive. I was wondering if that is safe to use since I am wanting to get a mini itx board which does not have space for a wifi card. However I already have a WiFi card so then I could still use it and not worry about selling it or re-homing it and getting a USB Wifi stick. Those are not very good for gaming, etc. What do you folks think about dual PCIe extenders? Do they actually work is the brand trustworthy? I probably WON'T use it and will just use a single PCIe cable riser but I would like to use my WiFi card if possible. Many thanks in advance! Here is the link:

http://www.amazon.co.uk/Sintech-PCI-E-Express-Riser-Extender/dp/B00KZHDSLQ/ref=sr_1_1?ie=UTF8&qid=1458221633&sr=8-1&keywords=dual+pcie+express+extender

P.S. I did not see the reviews at first but they seem positive, lol. However I am still wary. Any thoughts on the product?
 
Solution
InvalidError

Not that one, unless you want to use a PCI-based graphics adapter but GPUs moved from PCI to AGP over 15 years ago.

While PCI and PCIe sound similar (the PCIe slot looks like a backwards PCI slot) and reuse the same bus protocol structure, they are electrically completely different critters: PCI is 32bits half-duplex parallel at up to 66MHz (up to about 250MB/s) while PCIe is serial at up to 8Gbps per double-simplex lane and up to 16 lanes wide per port. (up to 16GB/s, 32GB/s if you count RX+TX aggregate.)
Sort by date Sort by votes
Quixit

Quixit

Reputable
Dec 22, 2014
1,359
0
5,960
The motherboard has to specifically support PCI-E bifurcation, very few do and you might need to contact the board manufacturer to see if it does.

Also, that is not the correct riser for what you want. You'd want a PCI-E 16x to 2x PCI-E 8x riser. That is one that uses a chip to convert from one PCI-E 1x slot to 2x PCI (not express) slots.
 
Upvote 0 Downvote
E

Elf_Knight

Honorable
Nov 9, 2013
650
1
11,015
Sorry guys! I got confused with the terminology of the slots. I basically want to use a graphics card and wifi card from the same slot in a mini motherboard. Is that possible? Could someone post a link to a good expansion slot riser/splitter? Many thanks in advance! :)
 
Upvote 0 Downvote
InvalidError

InvalidError

Titan
Moderator
May 18, 2007
23,815
5,265
108,890

Not that one, unless you want to use a PCI-based graphics adapter but GPUs moved from PCI to AGP over 15 years ago.

While PCI and PCIe sound similar (the PCIe slot looks like a backwards PCI slot) and reuse the same bus protocol structure, they are electrically completely different critters: PCI is 32bits half-duplex parallel at up to 66MHz (up to about 250MB/s) while PCIe is serial at up to 8Gbps per double-simplex lane and up to 16 lanes wide per port. (up to 16GB/s, 32GB/s if you count RX+TX aggregate.)
 
Upvote 0 Downvote
Solution
You must log in or register to reply here.

TRENDING THREADS

Latest posts

Moderators online

Share this page

COMPANY
RESOURCES
FOLLOW
Top Bottom