Reviews:
 ·Clearwire Wireless
 ·Comcast
| Can USB 3.0 run with out the IDE power cord plug in it? I installed 3 USB 3.0 cards in the PCI-E x1 slots of my computer. It looks like they require a separate IDE power cord for each of them. the devices I'm going to be using will have there own AC power source. Now as long as the devices have there own AC power source can I get away without having to plug in an IDE power cord on each of the 3 USB 3.0 cards??? |
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 JahntassaWhat, I can have feathersPremium
join:2006-04-14
Conway, SC
kudos:4 | More than likely that is only there to provide the extra power needed by the ports for devices that don't have their own power supplies.
What do the books / manuals / pamphlets that came with the cards say? |
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Reviews:
·Clearwire Wireless
·Comcast
| Jahntassa Who ever is the manufacturer is just making copies of a master disc on the tiny 225MB blank discs. The disc ain't even labeled. All that's on it is the driver/software. No manual what so ever. the whole thing came in the mail in a blank cardboard box. |
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 DarkLogixPremium
join:2008-10-23
Baytown, TX
kudos:3 | Why not just connect the 4pin molex power connectors? maybe use 2x y-splitters |
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| reply to floydb1982
I believe it is there because the power available to the card from the PCI-E bus is less then what the USB3.0 spec supports. Sort of the same issue with graphics cards. The bus has power, for low current devices (network cards, soundcards) but cannot support high current devices.
You could try it, it probably will work fine with 2.0 devices, however sooner or later you will upgrade to a power hungry USB3.0 device, forgetting you never plugged in the supplementary power and the outcome could blow the card, or the motherboard. For the cost of a tiny little cable, why not just install it. |
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| reply to floydb1982
I'd like to know the answer to that as well. I have a USB 3.0 card I'm about to put into a production server so can't really do any testing with it. All devices will have their own power and I'd rather not use the power connection if it's not needed but not at the expense of maybe losing the 3.0 speed which is needed.
The manual that came with the card didn't say anything besides giving instructions on how to use the Y molex cable that came with the card if you need to.
I guess I could test it on the bench and do speed tests with and without and compare it to a plain USB 2 connection. |
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Reviews:
·Comcast
 ·AT&T Midwest
| reply to floydb1982
Don't forget to test your backup program.... The Acronis (Home 2010) I'm using doesn't see anything connected to the USBV3 card.
I hear that 2012 does, but I don't have that yet...
There was nothing in instructions for the card I have either (For 4 pin power). I connected it just to be safe. Last thing I want is a laptop drive in a non-powered chassis sitting-staring back at me when I plug it in....
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Looking for 1939 Indian Motocycle |
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