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Will an PCI-E 3.0 Card fit in an PCI-E 2.0 slot?

Last response: in Graphics & Displays
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November 10, 2012 8:29:50 AM

Hi all.
I currently have an old card and looking to upgrade it. I am currently looking at the ASUS 7770 and the only problem is that it is it a PCI-E 3.0 card and my current card is is a PCI-E 2.0 card.

CURRENT PC SPECS
Intel Q9400 @ 2.66 GHZ.
ATi 4650 HD
4x 4GB Kingston DDR3 memory 1333mhz.
500GB Seagate Sata disk
ASUS P5P43TD-PRO

Just wondering if this card will work with my mother board.
thanks :) 
Ps the card is AMD. AMD RADEON 7770

More about : pci card fit pci slot

a b Ĉ ASUS
November 10, 2012 8:35:07 AM

Yes, it'll fit and it'll work just fine. There'd be a sub 1% performance drop, but that's no big deal.
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November 10, 2012 8:36:45 AM

It will work. PCI-E is backward compatible.

Also, make sure that you power supply have at least 1 6-pin PCI-E power connector. Using adapter is not reccommended, unless your PSU is capable to power the card.
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November 10, 2012 8:37:13 AM

Yes PCI-E 3.0s are backwards compatible with PCI-E 2.0s
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Anonymous
a b Ĉ ASUS
November 10, 2012 8:38:30 AM

they are both physically the same size.
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November 10, 2012 8:38:33 AM

Thanks for the quick reply guys ! I will soon buy this :) 
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a b Ĉ ASUS
November 10, 2012 8:39:45 AM

Glad to help.
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November 10, 2012 8:43:25 AM

your welcome goodluck for your purchase:) 
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November 10, 2012 8:59:49 AM

Best answer selected by roobbaayy.
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November 10, 2012 9:32:19 AM

PCIE 3.0 is backward compatibility with PCI E 2.0. What is your current PSU? It should be 550 W with one pci. e power connector. Don't use lower the 550 w and it should be
a branded one.
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a b Ĉ ASUS
November 10, 2012 9:35:02 AM

It doesn't take a 550W PSU to power OP's system with a 7770 unless it's a crappy 550W. A good 430W-450W such as an Antec EarthWatts/Basiq 430W, Antec VP-450, or XFX 450W will do the job excellently.
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November 10, 2012 9:39:09 AM

blazorthon said:
It doesn't take a 550W PSU to power OP's system with a 7770 unless it's a crappy 550W. A good 430W-450W such as an Antec EarthWatts/Basiq 430W, Antec VP-450, or XFX 450W will do the job excellently.


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