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4870 Video Display

Last response: in Graphics & Displays
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April 19, 2009 2:00:56 AM

I just bought a Radeon 4870 512mb and when I put it into my computer and boot the computer, no video displays. Basically, I just upgraded from a 7900GS... and its not working.
Other graphic cards work on my computer, and the onboard vga output also works.
I have tried many thing but it doesnt work.

My system spec:
ECS - G31T-M
e8400
4gb ram ddr2 pc4200

I used multiple DVI cables
reset the bios and cmos
change the initial boot device to pcie
tried different moniters...


When I boot the computer, the graphic card runs and everything. However I also noticed that of the four led lights, 1,3,4 blink twice at the same time.. and thats it

Is my graphic card dead... or can my motherboard not support it.. cause its pretty small and crappy

More about : 4870 video display

April 19, 2009 8:43:44 AM

Those LEDs usually indicate a power problem. Have you connected the necessary PCI-E power cables? 4870's require one 6-pin and one 8-pin PCI-E power cable.

What power supply is in your machine?
April 19, 2009 3:46:30 PM

RazberyBandit said:
Those LEDs usually indicate a power problem. Have you connected the necessary PCI-E power cables? 4870's require one 6-pin and one 8-pin PCI-E power cable.

What power supply is in your machine?



I have a 550W power supply.
I checked the requirements for the 4870, and it says 2 6pin pci-e slots
Also, on my 4870, there are only a total of 12 pins, or 2 6-pin pci-e slots
And, my power supply provides the graphic card with those two pci-e power slots
April 19, 2009 6:03:07 PM

Exactly which PSU do you have? 550W is only what the maker claims it can output and such claims can be somewhat optomistic.
The 4870 only needs 2x6 pin so that`s O.K. but the LEDs seem to be wrong:

http://forums.amd.com/game/messageview.cfm?catid=260&th...

sounds like a bad card, can you plug it into another machine?
!