SeaSonic S12II 520 and the gigabtye r9 270x will they work with my pc

clutchc

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I don't see any reason the PSU wouldn't. The HP uses a standard ATX PSU.

The gfx card is possibly a little more problematic. If that wasn't an HP, I'd say, no prob. But HP has been known to 'lock' their MB BIOS to prevent users from installing too big of a card for the system's stock PSU (and to get you to buy the cards they sell). It might not recognize the card. Ask around the HP forum to see how others have done.
 

clutchc

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Sorry we can't be more specific. But this forum (and others) is filled with HP desktop owners that can't get their retail card to work in their machine. It is a common thread. Some get theirs to work, some don't. It appears to be an HP-specific issue.
Here's a related thread that may help: https://www.sapphireforum.com/showthread.php?32410-Help-with-install-of-HD-7870
 

weeman8888

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May 27, 2014
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so it looks like il have to disable sucure boot in the bios menu. and reinstall new drivers.
 

weeman8888

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so would that gigabyte gpu have a uefi?
 


No. It's legacy BIOS.

UEFI BIOS supports Secure Boot. Graphics cards that have a UEFI BIOS will say so in their marketing material. An example of such a card (i.e. you shouldn't need to disable Secure Boot in the motherboard's BIOS when using this card.):

SAPPHIRE VAPOR-X R9 270X 2GB GDDR5 OC WITH BOOST (UEFI)

Sapphire_Dual_BIOS.jpg