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New Graphics Card Causes PC not to POST

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April 19, 2013 10:55:02 PM

So I recently bought a Corsair TX 650W and a Gigabyte Radeon 7870 to upgrade my old computer. When I finished wiring the new power supply, the computer boots up with my old graphics card (Radeon 7770).

However, when I switched to the 7870, the computer powers up, fans spinning (including the fans on the 7870), lights on, etc, but the computer does not POST. No signal on the monitor and pushing power again turns off the computer right away.

I am currently on my computer running the 7770 with no issues. Could this be a compatibility problem on the motherboard, because I don't think I messed up the wiring. Or do I need to do something before installing a new graphics? I'm relatively new to computers so I apologize.

For more info, refer to my older post before I upgraded my PSU.
http://www.tomshardware.com/answers/id-1646414/graphics...

Note: I plugged the new graphics into the same PCI slot as my old graphics. (PCIEX16)

My current system:
Operating System: Windows 7 Home Premium 64-bit (6.1, Build 7601) Service Pack
Processor: Intel(R) Core(TM) i7-3770K CPU @ 3.50GHz (8 CPUs), ~3.9GHz
Memory: 8192MB RAM
DirectX Version: DirectX 11
Card name: AMD Radeon HD 7700 Series
PSU: Corsair TX 650W
Case: Corsair Carbide 300R
Motherboard: Gigabyte B75M-D3H
Manufactured by CyberPowerPC

More about : graphics card post

a b U Graphics card
April 19, 2013 11:12:06 PM

Should POST. However, just in case, boot into Safe mode as you are, and uninstall the 7770 driver. Power off, swap cards and try again...
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a c 133 U Graphics card
April 19, 2013 11:22:16 PM

Sounds like a DOA card to me. Just to verify could you test the card in another system maybe a friends?
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April 19, 2013 11:23:33 PM

dodger46 said:
Should POST. However, just in case, boot into Safe mode as you are, and uninstall the 7770 driver. Power off, swap cards and try again...


Before I uninstall 7770 driver, will it still display without the drivers? Just in case it doesnt work, I dont think I have integrated graphics.
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April 19, 2013 11:25:00 PM

bignastyid said:
Sounds like a DOA card to me. Just to verify could you test the card in another system maybe a friends?


But the card fans seem to be running. I dont have a friend with a good enough system to run it. I didnt know a DOA card will stop a system from POSTing.
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a c 133 U Graphics card
April 19, 2013 11:28:15 PM

You do have an integrated card the HD 4000 is part of the i7 3770 and the motherboard has the VGA and DVI port for it. However I highly doubt a driver is causing the system to not post.
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April 19, 2013 11:59:49 PM

bignastyid said:
You do have an integrated card the HD 4000 is part of the i7 3770 and the motherboard has the VGA and DVI port for it. However I highly doubt a driver is causing the system to not post.


Thanks for your reply, is there anyway I can test the video card besides installing it into another PC?
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a b U Graphics card
April 20, 2013 12:28:35 AM

Hoboeater said:
dodger46 said:
Should POST. However, just in case, boot into Safe mode as you are, and uninstall the 7770 driver. Power off, swap cards and try again...


Before I uninstall 7770 driver, will it still display without the drivers? Just in case it doesnt work, I dont think I have integrated graphics.

Any GPU should POST with basic VGA drivers, but with these new UEFIs I'm uncertain where the line is drawn between BIOS and Operating System these days! As bignastyid says, it sounds like a dead Card, but removing the 7770 drivers will do no harm, it will still run on VGA/M'soft drivers to allow you to re-install the correct one if necessary...

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a c 133 U Graphics card
April 20, 2013 8:52:35 AM

You have donre all you can without trying the card in another system. I would RMA the card either with the manufacture or the store you bought it from.
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