New video card old PC, BSOD PLEASE HELP ME!!!

Hello there!

I just bought a Radeon HD 7790 tried installing it into my Inspiron 530 and I'm having some bad issues as a result, PLEASE HELP ME!!

Initially after inserting the new card the computer would start up, but it would only display a modified boot screen with no Dell logo and just the options F2 and F12 as well as some info about bios. After that it would only display a black screen, I could hear the Windows welcoming sound but no visual output coming from the computer.
Tried using my phone utilizing an app called Pocket Could, that aloud me to see what was happening with the computer and as expected it seam perfectly fine except that it would not display anything to my monitor. I thought I should installed the video card drivers so I did.
I restarted the computer but to my disappointment the same initial response with the modified boot screen reappeared, and to add to my frustration after a minute or two a blue screen of death came after that.
The computer restarted and continued to repeat the same actions over and over until I would have to shut it down manually.

my specs

OS Name Microsoft Windows 7 Professional
System Type x64-based PC
Processor Intel(R) Core(TM)2 Duo CPU E4500 @ 2.20GHz, 2200 Mhz, 2 Core(s), 2 Logical Processor(s)
BIOS Version/Date Dell Inc. 1.0.3, 12/07/2007
RAM 3.00 GB
PSU vx550W Corsair

The Blue screen

Attempt to reset the display driver and recover from time out failed.
Technical information:
***STOP: 0X00000116 (0XFFFFFA8004CF6010, 0XFFFFF88003A47D7C, 0X000000000000000, X0000000000000002)

*** atikmpag.sys - address FFFFF88003A47D7C base at FFFFF88003A3C000, DateStam 527021be


POST:
The monitor is plugged to the new 7790, an the computer runs fine when I pull out the video card and run it from the m/b.

ATTEMPTS:
So I tried plugin the monitor to the m/b output but there is no signal, I disconnected the 7790 and then I got it. went to bios but there is no options similar to auto or discrete, I only have under Advanced Chipset Features:
Init Display first, video memory size, dvmt mode and dvmt/fixed memory size.

Also I noticed that when I connect the monitor to the video card it gives me the BSOD but if I leave the monitor disconnected it runs normally and I can access the computer via my phone, I got the latest drivers from AMD but it still crashes.


Yeap, the card is firmly seated in the pci ex. I cant get a signal from m/b wile the card is in there, the computer runs, but the bios I guess ignores the the internal system as long there is something in the pic ex. I'm starting to think that it might be that my bios is to old or my motherboard is to old.
So I uninstall the amd drivers with the card still installed, restarted the computer but no output from the the two dvi ports of the card, the computer runs normally ,but again just a black screen appears this time no blue screen of death. I'll try reinstall the drivers using my phone.

  couldit be that the drivers just don't work with my mother board or something, because it seams that the card starts up and kinda gives me a a signal ( displaying the bios and wh not), indicating that that it just docent know to transmit information to the card, maybe??