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HP dc7800 won't recognize Radeon HD 5550 Graphics Card


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8 replies to this topic

#1 BazookaSamurai

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Posted 19 December 2014 - 11:48 PM

Hello and thank you for checking out my post!

 

I was recently given an old HP dc7800 Desktop and a VisionTek Radeon HD5550. The person who gave these to me said that he used the combonation of PC and GPU before and it wasn't currently installed because he had upgraded his GPU a while ago before moving on to a new PC.

 

I installed the Radeon HD 5550 into the only PCI-E Slot on the MoBo, booted up the PC and used Display Driver Uninstaller to remove the old drivers and rebooted. I tried to install brand new AMD Drivers (14.12) but the installation failed saying that it couldn't detect any hardware. 

 

I double checked to make sure that the GPU is seated properly, checked the Device Manager, but nothing is there. I've tried using DVI, VGA and HDMI but my monitors didn't receive any signals. 

 

How can I make this desktop recognize and use the graphics card?

 

Thanks in advance.

 

Edit: To not Two


Edited by BazookaSamurai, 20 December 2014 - 05:18 PM.


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#2 dicke

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Posted 20 December 2014 - 03:58 PM

Have you reset the CMOS?

Shut down -> remove the power cord -> either put a jumper on the shorting pins or remove the CMOS battery for about 15 seconds.

Put everything back in order and power up

Keep us posted

 

Dick


Stay well and surf safe [stay protected]

Dick E


#3 hamluis

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Posted 20 December 2014 - 04:04 PM

Try the drivers at https://www.visiontek.com/download-drivers.html .

 

Louis



#4 BazookaSamurai

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Posted 20 December 2014 - 08:24 PM

Have you reset the CMOS?

 

 

 

Thank you both for responding. I followed both of your advice.

 

Dick, I reset the CMOS by removing the battery for 15 seconds and re-installed it.

 

Louis, I downloaded the drivers, but it still wasn't able to find the GPU. 

 

The Installation error reads thus:

 

Existing packages Microsoft Visual C++ 2008 SP1 Redistributable Packages for install
AMD Catalyst Install Manager Final Status: Fail Version of Item: 8.0.915.0 Size: 20 Mbytes HydraVision Final Status: Success Version of Item: 4.2.252.0 Size: 6 Mbytes
Other detected devices
Error messages Application Install: install package failure!


Edited by hamluis, 25 December 2014 - 11:57 AM.


#5 JohnC_21

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Posted 20 December 2014 - 08:49 PM

Is there a BIOS setting to disable the onboard graphics and use a PCIe graphics card? There may be a specific setting in BIOS to use the PCIe slot for a graphics card.



#6 BazookaSamurai

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Posted 23 December 2014 - 04:00 AM

Is there a BIOS setting to disable the onboard graphics and use a PCIe graphics card? There may be a specific setting in BIOS to use the PCIe slot for a graphics card.

 

Not that I can find.



#7 dicke

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Posted 23 December 2014 - 08:24 AM

Can you screen shot the BIOS setup screen?


Stay well and surf safe [stay protected]

Dick E


#8 JohnC_21

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Posted 23 December 2014 - 04:30 PM

According to this HP thread the dc7800 is supposed to automatically detect the graphics card but it was advised that the drivers for the integrated graphics be removed first. See this HP thread also. OP did not uninstall all integrated drivers. Also reset BIOS back to defaults and was finally able to get the card to work.



#9 BazookaSamurai

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Posted 09 January 2015 - 05:07 PM

According to this HP thread the dc7800 is supposed to automatically detect the graphics card but it was advised that the drivers for the integrated graphics be removed first. See this HP thread also. OP did not uninstall all integrated drivers. Also reset BIOS back to defaults and was finally able to get the card to work.

Thanks for linking this. I may just try to reformat the HDD, re-install the OS (Win 7) and see if anything changes. 






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