Two Motherboard Questions re USB & Video

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bobbo123

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I'm researching what "should be" about my final computer build: for Virtual Reality.

1. Anyway to tell if/when the onboard video will be disabled if/when installing a video card? This info almost never appears in the posted specs. Must I call the manufacturer?

2. About the same with USB ports. I use a lot of them. Just found out that some/many of the usb connectors on a motherboard actually share the same bandwidth/hub. When a motherboard states "6" usb connectors, how can I tell how many are full bandwidth?

Of interest re VR==most systems show expensive MB's...but it seems to me all one needs is a board that supports the cpu and the video card (about half the price!). Most MB these days tout the Three Active Video Ports...but if they get disabled with the video card...who needs them?
 
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you can either use onboard video OR the dedicated PCI-E video card. You can not use them simultaneously, hope that helps

You must be talking about having 3xPCI-e slots for video cards. Those are not for onboard graphics cards. You can only use a dedicated card in a PCI slot. Your onboard card will be on-die of your CPU.

Get a good MB for overclocking so you can push your system, also make your RAM run faster. You will need a high spec system pushed and OC'ed for a good experience on VR
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engineer5261

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you can either use onboard video OR the dedicated PCI-E video card. You can not use them simultaneously, hope that helps

You must be talking about having 3xPCI-e slots for video cards. Those are not for onboard graphics cards. You can only use a dedicated card in a PCI slot. Your onboard card will be on-die of your CPU.

Get a good MB for overclocking so you can push your system, also make your RAM run faster. You will need a high spec system pushed and OC'ed for a good experience on VR
 
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bobbo123

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Thanks Engineer. Thats been my experience with the 5 or so motherboards I have used....I was hoping the newer boards would make more sense? You just saved me about one hundred bucks as entry boards for the 1151 socket will skimp on the video connectors...but with the video card...thats irrelevant.

How about the USB's? I'm thinking of using a hub even with the conflict issues to make cable management neater. I could see two small hubs each connected to a full bandwidth connection on the motherboard. Just wondering how much hype is hidden with the MB descriptions.
 
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bobbo123

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Thanks Scout: yes, I plan to get one such card to run lights and such. Probably a combo card to run some extra Sata as well to go with the cages I plan to use.

Made me remember: when running external hard drives off a usb hub...I assume a "powered hub" is not needed at all as each hard drive has its own power? Can you confirm?
 
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bobbo123

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Thanks Scout==yes, I have about 10 of those external hard drives. Now...I'd like to run two groups of four each off two separate usb hubs. Because these external HD's have their own separate power....I "assume" the usb hub does not need to be powered? IE--the power draw for the data cables is well within the unpowered hub capabilities (especially a 3.0 hub).

Can you or anyone else confirm this? What I've found so far is that these external drives cannot draw sufficient power from a powered hub...a close but different question.
 
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bobbo123

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Thanks Scout: that confirms my best hope. I've seen some models with on/off switches with led activity lights AND a 3 foot usb cable. That last item might be most important in order to remove the tangle of usb cords in back of my computer.

I suppose "any" usb splitter could be used and just add usb extension cable to get that extra length...but I hate making more connections than possible. That always seems to introduce other problems. And while they are all supposed to be built to a standard, I always wonder about adding length to a usb cable and the issue of send/receive latency causing problems.

thanks for your multiple help.
 
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