COLGeek :
You could certainly have a defective GPU. The Dell Diagnostic is a rudimentary test at best. When you tried Driver Fusion, what components were not removed? Also, you can do a full uninstall with the Catalyst installer as well.
Here is the list of remaining components after uninstalling using the Catalyst installer, followed by the Catalyst clean uninstall utility, followed by Driver Fusion (with restarts in between):
True AMD Display Registry key HKEY_LOCAL_MACHINE\System\CurrentControlSet\Enum\Root\LEGACY_AMDKMDAG\
True AMD Display Registry key HKEY_LOCAL_MACHINE\System\ControlSet001\Enum\Root\LEGACY_AMDKMDAG\
True AMD Display Registry key HKEY_LOCAL_MACHINE\System\ControlSet002\Enum\Root\LEGACY_AMDKMDAG\
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\DRIVERS\atikmdag.sys
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\DRIVERS\ati2erec.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\DRIVERS\atikmpag.sys
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\amdpcom64.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atiadlxx.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atiapfxx.blb
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atiapfxx.exe
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atibtmon.exe
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\aticalcl64.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\aticaldd64.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\aticalrt64.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\aticfx64.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\ATIDEMGX.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atidxx64.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atieclxx.exe
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atiedu64.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atiesrxx.exe
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atig6pxx.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atig6txx.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atiglpxx.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atiicdxx.dat
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atimpc64.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atimuixx.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atio6axx.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\ATIODCLI.exe
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\ATIODE.exe
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atipblag.dat
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atipdl64.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atitmm64.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atiu9p64.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atiumd64.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atiumd6a.cap
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atiumd6a.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atiuxp64.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\atiogl.xml
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\SysWOW64\amdpcom32.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\SysWOW64\ati2edxx.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\SysWOW64\atiadlxy.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\SysWOW64\aticalcl.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\SysWOW64\aticaldd.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\SysWOW64\aticalrt.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\SysWOW64\aticfx32.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\SysWOW64\atidxx32.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\SysWOW64\atigktxx.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\SysWOW64\atiglpxx.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\SysWOW64\atimpc32.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\SysWOW64\atioglxx.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\SysWOW64\atipblag.dat
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\SysWOW64\atipdlxx.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\SysWOW64\atiu9pag.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\SysWOW64\atiumdag.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\SysWOW64\atiumdva.cap
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\SysWOW64\atiumdva.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\SysWOW64\atiuxpag.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\DRIVERS\atikmdag.sys
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\DRIVERS\ati2erec.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\DRIVERS\atikmpag.sys
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\amdpcom64.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atiadlxx.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atiapfxx.blb
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atiapfxx.exe
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atibtmon.exe
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\aticalcl64.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\aticaldd64.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\aticalrt64.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\aticfx64.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\ATIDEMGX.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atidxx64.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atieclxx.exe
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atiedu64.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atiesrxx.exe
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atig6pxx.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atig6txx.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atiglpxx.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atiicdxx.dat
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atimpc64.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atimuixx.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atio6axx.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\ATIODCLI.exe
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\ATIODE.exe
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atipblag.dat
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atipdl64.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atitmm64.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atiu9p64.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atiumd64.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atiumd6a.cap
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atiumd6a.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\system32\atiuxp64.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\atiogl.xml
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\SysWOW64\amdpcom32.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\SysWOW64\ati2edxx.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\SysWOW64\atiadlxy.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\SysWOW64\aticalcl.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\SysWOW64\aticaldd.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\SysWOW64\aticalrt.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\SysWOW64\aticfx32.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\SysWOW64\atidxx32.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\SysWOW64\atigktxx.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\SysWOW64\atiglpxx.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\SysWOW64\atimpc32.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\SysWOW64\atioglxx.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\SysWOW64\atipblag.dat
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\SysWOW64\atipdlxx.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\SysWOW64\atiu9pag.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\SysWOW64\atiumdag.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\SysWOW64\atiumdva.cap
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\SysWOW64\atiumdva.dll
True AMD Display Registry value HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Setup\PnpLockdownFiles\%SystemPath%\SysWOW64\atiuxpag.dll