Installing a 780 on an old mainboard

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SammyAl7

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Jul 1, 2013
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Hi everyone,

So i've been looking for a new GPU now, upgrading from a 6870, and I have decided on the Asus DC2OC 780 model. I am wondering if I will have any trouble installing on my motherboard since it is a bit outdated. First of all, the card says it requires PCIE 3.0, whilst my motherboard (P7H55-M LX) has the following slots:

1 x PCIe 2.0 x16
1 x PCIe 2.0 x4
2 x PCI

Is there a compatibility issue between PCIE 2.0 and 3.0?

My second issue which concerns me the most is the following note on the ASUS page:

"ASUS GTX780-DC2OC-3GD5 extends the fansink to 2 slots."

Will my motherboard be able to hold it?

Any help will be appreciated!
 
Solution
Wolfshadw


No. It just means that the shroud, covering the cooling fans, extends over the next slot down.

-Wolf sends
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JOHNN93

JOHNN93

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Oct 3, 2013
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pci express 3.0 has twice the bandwidth than 2.0 although the difference you will see is minimal in real life gaming.
the 780 should not have less than 90% performance at the max in a 2.0 slot.
https://www.asus.com/Graphics_Cards/GTX780DC2OC3GD5/#gallery
as you can see on the backplate under the asus direct cu2 asus has included as most of the time a pcb strengthening bracket where it is connected to the chassis.
so you will have no problem at all.even if you upgrade your rest of your system the gpu will last some time until it needs a upgrade.
 
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SammyAl7

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Jul 1, 2013
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And John that is very true, i'm glad for the 780 price drop, I'll be upgrading the rest of my system in the summer but I thought i'd pick up the GPU now to have some fun and separate the cost from now until then.
 
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