Can't connect my other Monitor to my pc

[Ashxxx]

Hello guys.
I have R9 280 for like 6 months now, I have 2 monitors ,so yesterday i was trying to connect my other monitor to my PC, it worked BUT it doesn't display my main GPU, it only displays INTEL GPU, so i was like okay, i took out my other monitor, so today, i put it back, to let my brother see it, but it's not working anymore i don't know why, when i put the monitor's cable behind the casing, you know the blue port that connect Monitor's adapter, i tried with both monitors it didn't work as my main monitor connecting to my GPU,so i tried connect my HDMI cable to my main monitor after taking the Monitor's adapter from the GPU's Adapter (DVI), the screen became black < that's the first problem now the second problem is when i take off my Monitor's adapter from the GPU's DVI and put it in the red one https://www.google.mu/search?q=R9+280x+monitor+adapter&newwindow=1&biw=960&bih=494&source=lnms&tbm=isch&sa=X&ved=0ahUKEwil2c2I9_LMAhVM0hoKHX8hDwwQ_AUIBigB#imgrc=UOilnSvOYI6_NM%3A
the screen became black, so i don't know what's happen,As I"m about to buy Dvi to vga adapter for my other monitor, do you think it'll work? Sorry for the Long essay anyways!

 

[dangus]

if i deciphered what you're saying correctly....you had one monitor hooked up to the R9 280, then tried plugging another monitor into the motherboard? if that's the case it may have cause the system to revert to the intel GPU. sorry it's really hard to figure out what you're actually saying.

what i would suggest is resetting the bios by clearing the CMOS and then directly disabling the intel GPU within the bios (may be called iGPU, onboard graphics, or integrated graphics in the bios). then plug your first monitor in, make sure it works. then plug the second one INTO THE R9 280.

 

[Ashxxx]

Sorry my bad, and yeah, that's why im about to buy a DVI to VGA adapter for my other monitor to connect to my PC,please read what i said in my original post, it has 2 problems

 

[Ashxxx]

'i was trying to connect my other monitor to my PC, it worked BUT it doesn't display my main GPU, it only displays INTEL GPU' < yeah i get that but when i tried again today, it didn't work, Right now my main monitor's adapter is connecting to the DVI to VGA's port, Even when i tried to move my main monitor's adapter to http://prntscr.com/b7y3dh , it didn't work either, so i had to plug it back to the DVI to VGA's port. That's the first problem ^

 

[Ashxxx]

'so i tried connect my HDMI cable to my main monitor after taking the Monitor's adapter from the GPU's Adapter (DVI), the screen became black' When i plug my HDMI cable to the HDMI ports, and remove the main Monitor's adapter from it's Dvi to VGA, the screen became black. So that means my HDMI cable got broke??

 

[Ashxxx]

'When i take off my Monitor's adapter from the GPU's DVI and put it in the red one https://www.google.mu/search?q=R9+280x+monitor+adapter&newwindow=1&biw=960&bih=494&source=lnms&tbm=isch&sa=X&ved=0ahUKEwil2c2I9_LMAhVM0hoKHX8hDwwQ_AUIBigB#imgrc=UOilnSvOYI6_NM%3A
the screen became black' The link says it all, So i was testing when i buy the DVI to VGA adapter for my second monitor if it's going to work, So when i put my main monitor's adapter to the Red one, the screen became black, so i'm really confuse, Like it'll be a waste of money to buy the DVI to VGA adapter for the second monitor then?

 

[ffg7]

are these the ports on your radeon card? 2x DVI, 1x HDMI, 2x mini-DisplayPort.

 

[AfterEffects]

I have almost the same prob.
When im hooking up the 2 nd monitor to my pc the 1 st screen becames black and the 2 nd remain closed.And its making more noise then ussualy.