1 of 1 people found this helpful
Based on the Dell model you listed the first thing that comes to mind is that the motherboard used in this system is too old to support current GPU's.
In the bios...have you selected the discrete graphics (RX550/PCIE) as the 'primary'?
Thanks for your suggestion. Sadly it didn't help. The BIOS gace two settings - the in-built card or auto-detect and I changed it to the latter.
Then you shouldn't see the Intel graphics at all in the Device Manager. I select 'hide update' but they show up again anyhow. I would install the other updates, reboot and check again. If it comes back with no updates available, then try a clean install again > Clean Install AMD Graphics Drivers
It is more probable that, as ray_m pointed out, your system may be too old to support it.
I tried the clean install procedure as detailed in the Clean Install AMD Graphics Drivers link. Actually, I did it twice in case I missed any step the first time. I did at least get to a point where all drivers were removed. However, after re-install the Radeon drivers were still not active.
I take on board the point about the system possibly being unable to support the Radeon
Thank you both for your helpful suggestions; it looks as though I have reached the end of the road on this one.
Actually its down to third party sellers putting their own bios in the cards to OVERCLOCK mainly ATI.
First you must find where you card came from, get GPU-Z and copy/paste (device id) settings: 4 x 4 numbers into your browser and search.
Then compare it with a bare bones setting of the card with the one above that will tell you it has been overclocked or not?
Because the bios of the overclocked card is third party it will only work with certain drivers so.
The fix is to flash the bios back to the factory original.
I have found over 800 people with the same problem.
Find bios here
VGA Bios Collection _ TechPowerUp
Flash software here
Download AMD_ATI ATIFlash _ TechPowerUp
Flash at your own risk.
if it fails ie bricks, use another card as primary and put bricked card in secondary and flash.