New Gpu, doesn't work in my system. Works in another however. Ideas?

Del20

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Dec 30, 2013
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So, Got a brand new Visiontek R9 280x. Hooked it up to my system. Once everything was booted up I received no signal from my monitors, I used Dvi as well as a display port connection on the card and still received nothing on my monitors. I took the card out and tried booting up using just onboard graphics. My system booted just fine. So I put my old card, a 6870. And once again everything booted up just fine. So I tried unplugging all unnecessary hard drives, fans, and ram sticks. Booted system up with new gpu and still no signal from monitor.

My system uses a 630 Watt Rosewill PSU, an i5 3450, and a Gigabyte GA-Z77-D3H.

Now I also put the new card into my brothers system. I don't remember 100% all of his components, however I do know that he uses a 500 watt PSU, and normally uses a 550TI gpu.
I took out his old card, and put the R9 280x in his system and everything booted fine. I downloaded the drivers for the new card, and booted up skyrim just as a tester. Everything ran incredibly smooth.

The majority of the feedback i'm receiving indicates its my powersupply. I just want to triple-check that i'm not missing any details. I'm not the most amazing with computers just a gamer who wants to game! :p

------- edit --------
Alrighty fast-forward to now, got the card working in my system. Everything is connected and I have the drivers installed. They recognize the card as a 7900 series sometimes, other times they recognize the card as a r9 200 series. Regardless the card still doesn't seem to be working. Even with both monitors plugged into the gpu, (display-port and DVI) the system still seems to be using the on-board graphics.
When in games I'm getting about 5-10% of the frame rate that I should be for the card. I even ran 3dmarks benchmarks for giggles, My score for the last test was 3% of what the card should get. Out of curiosity I downloaded a couple temperature read programs, One of them was speedfan. All programs indicated my Graphics card was basically doing nothing, my cpu on the other-hand was running at 95-99 c.

At this point i'm assuming that its probably a bad card. But just in case I missed anything, anyone have any ideas?
 

Del20

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Dec 30, 2013
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Alright, I have everything ready to go, from what i've read however it would seem that bios flashing can be really really dangerous?? Anyone wanna like run me through the process of updating the bios on my motherboard? In simplistic form :D
 

MP5KU

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May 7, 2013
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On the CPU? Was that a typo? Anyway, Try downloading MSI afterburner and try ramping up the Fan speed.
 

Del20

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Dec 30, 2013
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No that was correct, the CPU's temperatures were spiking up to 100 c. according to speedfan at least. The GPU fans were going, not very fast however, and looking at MSI afterburner's readings, the GPU didn't really seem to be doing much, even with a game loaded.