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Explanation of the PCIe switch?

I've been reading into old tomshardware motherboard reviews on the ivy bridge architecture, and I've been wondering what they mean by how some boards benefit by having a PCIe switch and others don't. Of course the most important part, what is the application or instant benefit as a user.
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  1. tlgriffith said:
    I've been reading into old tomshardware motherboard reviews on the ivy bridge architecture, and I've been wondering what they mean by how some boards benefit by having a PCIe switch and others don't. Of course the most important part, what is the application or instant benefit as a user.


    could you give a link to where you read this?
  2. ryan27968 said:
    tlgriffith said:
    I've been reading into old tomshardware motherboard reviews on the ivy bridge architecture, and I've been wondering what they mean by how some boards benefit by having a PCIe switch and others don't. Of course the most important part, what is the application or instant benefit as a user.


    could you give a link to where you read this?


    http://www.tomshardware.com/reviews/z77x-up5-th-z77a-gd80-z77-oc-formula,3305-25.html
  3. it is a device that allows more than one pcie bus to run at the same time.
  4. Yeah I kind of figured that. What I'm asking is, what are the benefits/consequences of having the switch on vs. off.
  5. Best answer
    tlgriffith said:
    Yeah I kind of figured that. What I'm asking is, what are the benefits/consequences of having the switch on vs. off.


    if you do not have a switch, you could not use all of your pcie slots at the same time at full speed.
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