Just bought a new PC, installed everything and using onboard graphics, everything is OK. If I plug in the graphic card, the computer doesn't start. The display don't turn on, the keyboard / mouse lights neither. The Fans are working (even the graphic card fans). I unplugged and replugged everything, reseted BIOS, disabled onboard graphics, but with the graphic card nothing works.
I have no chance to test the graphic card on other PC, or other graphics on my pc.
Any help ?
Thanks for your time!
XFX Core Edition PSU PRO 550W
Gigabyte Ati HD7870 OC Version 2GB DDR5 PCI-E
Intel Core i5-3470 3.2GHz (3.6GHz Turbo) 6MB BOX
Corsair Vengeance LP 2x4096MB DDR3 1600Mhz
Samsung 840 SSD 2.5 SATA III 120GB
A lot of video cards suck up a HUGE amount of power, that many systems' PSU (Power Supply Unit) is incapable of handling - often over 100 watts. You need to verify that your system's power supply can handle the additional load.
I tried to plug the screen on both, motherboard (DVI and HDMI) and graphics card (HDMI and DVI). The simple fact having the graphics cards plugged, nothing works, just the power supply and the fans :).
I've seen people with very similar systems and less powerfull PSUs (450W). I could understand that if after some gamming with graphics on max load the system reboots, but it's on startup, graphics cards isn't doing much yet :)
No more peripherals, only the keyboard and the display.
I tried on both available PCIEX-16 and PCIEX-4.
Maybe I didn't follow all the ESD precautions.. but i think i allways touched the case when plugging the graphics card.
First of all, that's a feaking good look'n video card (I only have an OEM Nvidia GT420!) but judging buy some pictures i saw on newegg, you may have to plug in external power cable from the power supply... However if you have done this already, and it fails to power on even to bios, it may be you power supply, it may not have enough ommph to supply the computer..
If possible, try to use the video card in another working computer (make sure it has the correct PCI port on the motherboard)
I tried the graphics card on another older computer with an 650W and it works perfectly ! So I think the problem is some BIOS config or a problem with PSU since i tried 2 PCIE slots, what do you think?
PS: I have no chance to try the other PSU on my comp
the older computer has an extra 100 watts which could be the difference here... or, the mobo doesn't support that video card, but that seems unlikely though...
anyway yu can get a bigger psu in the computer? That seems like the last thing to try, because you know that the video card works...