Topic Title: Trouble with HD 5770 and Windows 8 (possibly)
Topic Summary: Can't fix my Graphics Card problem.
Created On: 11/29/2012 02:07 PM
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 11/29/2012 02:07 PM
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  So recently I got a new family pc for the house.  Currently the pc has an MSI MS-7778 motherboard and an onboard graphics HD 5760.  Sure this is ok but I want to use my HD 5770 for the occasional playing of games.  The operating system is Windows 8.  So if I plug the card into the pci-e slot and put the pci-e power into the card the computer gives me six beeps (which according to the motherboard manual is due to the keyboard??? Odd???) and then does nothing.  If I keep the graphics card in but unplug the pci-e power the computer boots up just fine and the graphics card also gets power it seems as the fan on the card is running no problem.  So I get into Windows  8 but the OS does not detect the card that is in the pci-e slot.  The card I know is ok since  it works in other computers.  Do I need to disable the onboard graphics?  Is there another problem?  Is more information needed for an actual response?


Any help would be great.  Thank you - Aaron

 11/29/2012 02:22 PM
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Plugging in that card is too much for the power supply, maybe...

There's usually a sticker on the side of the PSU which describes how its power is distributed.  The +12v rail is most important here.  It's hard to tell exactly how the system will behave without that power connector hooked up.  Some cards will display a message at post and refuse to do anything else, some will run but with much lower clock speeds... which is probably what yours is doing.  I wouldn't bother trying to install drivers for it yet though, until you can get that power connector hooked up and working.


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 11/30/2012 06:37 AM
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Dungeon Master

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If you can disable the onboard gpu in BIOS, that should make the 5770 the default device.

PCIe slots supply something like 75 watts which would be enough to get the fan going.

There's also a possibility you can Hybrid crossfire the onboard with the 5770 but I can't find a chart confirming it. Sorry.


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Edited: 11/30/2012 at 06:53 AM by Hardwood
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