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Sapphire HD 7770 not working in PCIe 3.0 slot

Last response: in Graphics & Displays
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December 27, 2013 8:43:39 AM

Hi All, I just got a new Sapphire HD 7770 for my computer, but it is not displaying anything when it is in the the PCIe 3.0 slot. However, It works fine in the lower PCIe 2.0 slot... I can put my old 5770 back in the 3.0 slot and it'll work.

I've updated the BIOS on my board, and have poked around the BIOS settings to see If I've missed something, but I can't seem to figure it out.

Here is a link to the board I have: http://www.newegg.com/Product/Product.aspx?Item=N82E168...

And this is the Card: http://www.newegg.com/Product/Product.aspx?Item=N82E168...

I'm pretty puzzled. Any thoughts of what I'm missing?
December 27, 2013 9:18:50 AM

Did you connect the 6 pin power connector from PSU to GPU ?
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December 27, 2013 9:27:46 AM

i'd be tempted to do things one tiny step at a time. with old card in, uninstall all drivers, shut down, remove card, and either (a) boot up using onboard graphics to make sure it's clean or (b) boot up with new card and hope it shows up. i'd be more inclined to go with (a) first, maybe even go as far as rebooting a few times, and then move onto (b)
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December 28, 2013 9:17:32 AM

giantbucket said:
i'd be tempted to do things one tiny step at a time. with old card in, uninstall all drivers, shut down, remove card, and either (a) boot up using onboard graphics to make sure it's clean or (b) boot up with new card and hope it shows up. i'd be more inclined to go with (a) first, maybe even go as far as rebooting a few times, and then move onto (b)


Thought I'd give this a go. I put the old one back in again, and it's doing the same thing now. So, I'm thinking it's a bad slot. I'm not sure how I messed it up pulling out the old one, but I guess I did.

Thank's for all the help.
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