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Started by Xenexo | | 15 answers
Trying to install HD 7950 w/ 600W PSU on a IPISB-CU motherboard. Anyway to Mod the MOBO to allow the compatibility of the GPU?
Hello everyone,

I have a problem where if I install the default graphics card (GT540) it works. However when I want to upgrade to a Radeon HD 7950, it powers on but with no display. When I go to shut off the power it instantly shuts down. To me, this means it hasn't past the boot screen. The only way I can get it to boot with the card in the computer is either;
A) Unplug one of the 6-pin adapters from the GPU
B) Disable the PCI security
Other then that I am not able to use the new GPU. It works with all my other machines except this one.

My model number is HP Pavillion HPE h8-1120.

And yes I've updated all the drivers to everything.

Does anyone know of a bios mod that would help in this situation? I believe it's just a compatibility issue that HP doesn't want people to use different graphics cards besides the ones they supply pre-built.

Thanks,
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October 16, 2014 9:04:15 PM

Trying to find a document with all of your BIOS options in it. HP doesn't make that easy.
October 16, 2014 8:54:45 PM

Yeah I updated the BIOS to 7.16. The latest.
October 16, 2014 8:52:02 PM

Understood. Did some more research. Seems that motherboard has issues with PCIe v3.0 GPUs. Many users just replaced the HP motherboard to get around the issue.

Do you have the la test BIOS version installed?
October 16, 2014 8:41:04 PM

The primary video is set to PCI express. Not integrated graphics.
October 16, 2014 8:40:07 PM

NVM on the primary device. I missed it earlier. Need to think about this more.
October 16, 2014 8:38:13 PM

And the primary video device is set to what? BTW I assume you have the Retail Plus PST installed. It should power this GPU, but it is not a quality product from what little info is available on it.
October 16, 2014 8:29:02 PM

It's not supported
October 16, 2014 8:28:30 PM

While checking your bios, is Lucid Virtu enabled (if supported)?
October 16, 2014 8:24:17 PM

Also, in your BIOS, what is configured as your primary video device?

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