Computer posts buty nothing shows on the Screen

[The Walking Bread]

im helping a buddy upgrade the rig i built him 2 years ago, its was decent enough but needed a new graphics card, so he decided to get a xfx r9 290, this meant he needed a new power supply, so he got a corsair 750 watt, also he got a new hard drive because he was running out of storage space.

All the new parts were installed and using a dvi duallink he hooked it up to his monitor, pressed power, and no picture. so i went on trouble shooting, his computer was giving one regular beep, the sign of a good post. so i had him clear cmos, reseat his ram and graphics card and try to power it on again, no dice. then i had him put back in his old graphics card, powered on perfectly.
ok so the graphics card is bad then correct? im assuiming it is since everything else works just fine.

Here is a list of his parts
ASUS M5A78L-M LX PLUS http://www.newegg.com/Product/Product.aspx?Item=N82E16813131795&cm_re=M5A78L-M_LX_PLUS-_-13-131-795-_-Product

8 gigs ram

corsair 750 watt psu http://www.newegg.com/Product/Product.aspx?Item=N82E16817139040&cm_re=corsair_750-_-17-139-040-_-Product

XFX r9 290 http://www.newegg.com/Product/Product.aspx?Item=N82E16814150697&cm_re=xfx_r9_290-_-14-150-697-_-Product

Fx-4100 CPU

twin 1 tb 7200 rpm drives

is it that we just got a bad graphics card? or is something else at play here

 

[TStahler]

If the old card worked in the system just fine then I am going ti assume that the new card either doesn't have a 6 or 8 pin connector connected to it correctly from the power supply, it might not be seated right into the PCI Express slot, or if all of that fails, the new card is DOA and needs to be RMA'd.

Cheers!

 

[FreeRunEggs]

im helping a buddy upgrade the rig i built him 2 years ago, its was decent enough but needed a new graphics card, so he decided to get a xfx r9 290, this meant he needed a new power supply, so he got a corsair 750 watt, also he got a new hard drive because he was running out of storage space.

All the new parts were installed and using a dvi duallink he hooked it up to his monitor, pressed power, and no picture. so i went on trouble shooting, his computer was giving one regular beep, the sign of a good post. so i had him clear cmos, reseat his ram and graphics card and try to power it on again, no dice. then i had him put back in his old graphics card, powered on perfectly.
ok so the graphics card is bad then correct? im assuiming it is since everything else works just fine.

Here is a list of his parts
ASUS M5A78L-M LX PLUS http://www.newegg.com/Product/Product.aspx?Item=N82E16813131795&cm_re=M5A78L-M_LX_PLUS-_-13-131-795-_-Product

8 gigs ram

corsair 750 watt psu http://www.newegg.com/Product/Product.aspx?Item=N82E16817139040&cm_re=corsair_750-_-17-139-040-_-Product

XFX r9 290 http://www.newegg.com/Product/Product.aspx?Item=N82E16814150697&cm_re=xfx_r9_290-_-14-150-697-_-Product

Fx-4100 CPU

twin 1 tb 7200 rpm drives

is it that we just got a bad graphics card? or is something else at play here

I was having tons of problems with a new video card in a recent upgrade I did as well. Updating my motherboard's BIOS fixed my issue. I'd give that a shot before you RMA.

 

[The Walking Bread]

Great solutions, ill give them a shot, just realized that it has a 6 pin and a 8 pin on the gpu, doubt he plugged the 8 pin in, or m,ade it a 6 pin only, will try all and post a result, thanks all for your help

 

[The Walking Bread]

so he got it to work with the new graphics card, he cleared cmos, but the computer seems to be running really slow. he uninstalled and reinstalled the drivers and the pc goes back to a black screen. he reformatted his entire pc, still slow, and he still cant update his graphics driver without it going to a black screen.

 

[FreeRunEggs]

Do you try a BIOS update on the motherboard?