ATI Radeon Graphics cards not being detected.

[Dmoore92]

Hello.

I've recently have tried installing 2 working graphics cards into my pc this week, and none have been able to be detected by my computer. Both have been ATI Radeon graphics cards, both fans were running, but not showing up on my computer. I've checked my bios settings, and it looks like my PCI-E 16x slot is enabled.

I have an AMD A8 -3820 APU motherboard.

Any help would be appreciated, thanks.

 

[meat_loaf]

Bios say that PCI-e x16 slot is enabled, but that does mean it is actually using it? Considering APU chips all have igpus it might still be using it rather than the dedicated cards. Check the bios again if there is an option to disable igpu, generally there will be an option like that for majority of mobos. Unless PCi-e16 enabled alternatively means igpu is disabled.

If that is the case check windows device manager. It probably still detects the onboard vga and is being forced to use that. Just right click on desktop and force it to be disabled. Alternative you can check catalyst and see what the driver is doing. If it has vga as primary output, switch it.

 

[Dmoore92]

I checked BIOS again, I didn't get an option to disable IGPU or anything related to it. BIOS was recently updated as well.

I have thought about disabling the on board video via device manager, but haven't due to the fact that i've seen people complaining about not being able to get any sort of picture after doing that. Will I be able to get picture back by disabling it via device manager if my GPU still doesn't get detected?

 

[meat_loaf]

I checked BIOS again, I didn't get an option to disable IGPU or anything related to it. BIOS was recently updated as well.

I have thought about disabling the on board video via device manager, but haven't due to the fact that i've seen people complaining about not being able to get any sort of picture after doing that. Will I be able to get picture back by disabling it via device manager if my GPU still doesn't get detected?

Are those users using safe mode? Because if they boot into normal mode of course they won't see any display. However safe mode is the place where you want to reset the settings. But what you might want to do is take that dedicated gpu and try it on another PCI-ex16 slot and see if anything comes up. Sometimes it might just be a bad PCI lane.

 

[Dmoore92]

Well this is unfortunate. My graphics card has 2 power slots that need to be plugged in, my power supply has neither of the correct power slots, and I'm pretty broke for the time being. Do i absolutely need to have these power slots plugged in via my power supply?

 

[Dmoore92]

Does anybody have an answer for me for the above question? I have an ATI Radeon HD 5870 1GB.

 

[meat_loaf]

Well this is unfortunate. My graphics card has 2 power slots that need to be plugged in, my power supply has neither of the correct power slots, and I'm pretty broke for the time being. Do i absolutely need to have these power slots plugged in via my power supply?

Dude you need a PCIe capable power supply. The 5870 requires 2 PCIe 6pins. How else is the graphics card going to get power? You need a PSU that support both PCIe-6 pin and 8-pin. You would at least get 500w or 600w for any dedicated gpu. Why don't people actually research how many power pins their card needs and knowing what PSU you should have? Its common sense to actually know if your computer can support the hardware before actually buying it.

You my friend, just wasted money on buying a graphics card and now you have no money left to buy a psu.