mccoldt

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Oct 2, 2012
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Hello everyone. I am looking to upgrade my graphics card on my desktop system which is a Compaq Presario sr2125uk. Im thinking of a gentle upgrade to a radeon HD 6750. This card is a pcie 2.0. Is my motherboard compatable with this card or indeed any pcie 2.0 card, or do I have to go with a pcie x16 card? Thanks in advance for any help and advice!
Bryan
 
yes pcie 2.0 is backwards compatible. make sure to pair your power supply to the graphics meaning if you dont have any pcie 6 pin power cables on the psu you have to pick a card that doesnt need additional power
 

lt_dan_zsu

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May 3, 2012
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It looks like it would work fine, but I am pretty sure it only has 4.0 gbps speed, but that shoudn't be a problem for a 6000 series card. The 7000 would barely be bottlenecked by that.
 
Being 6000 or 7000 is irrelevant, the fact that it is a low end card means it won't use the full pcie bandwidth. Even high end cards like the 680 and 7970 only have a 2-6% decrease when running in 1.0 x16 which is only like 5fps.

If you are keeping the stock psu, it is only 300w so could only go with a 6670 or 7750. But you should not have an issue with pcie version.