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Is power supply is needed for every graphics card

Last response: in Graphics & Displays
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July 14, 2012 9:51:53 PM

Hello,
is power supply is needed for every graphics card?
a b U Graphics card
July 14, 2012 10:10:33 PM

If you're asking if you need a connector(6 pin or 8 pin) from the PSU to the graphics card, no not every card needs it. Most do and the ones that do not are generally weak but silent (idea for a HTPC)
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a b Î Nvidia
a c 152 ) Power supply
a c 287 U Graphics card
July 15, 2012 3:50:05 AM

The power supply is needed to power the +12V 75W circuit in the PCIe x16 slot itself and the external PCIe power cable(s) for larger cards. If you want a card that gets all its power from the slot and your gaming is at 1680x1050 or lower resolution look into one of these:
http://www.newegg.com/Product/ProductList.aspx?Submit=E...
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a b Î Nvidia
a c 142 ) Power supply
a c 266 U Graphics card
July 15, 2012 5:08:04 AM

If you will have multiple graphics cards, then, yes, they each need to be powered.

But typically it is done with a stronger power supply that has more leads.
Some basic graphics cards are powered only by the pci-e slot.
Others need auxiliary 6 or 8 pin pci-e power connectors.
If your psu has sufficient such connectors, then it will be strong enough to do the job.
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