Sapphire RX 480 nitro, posting issues

[DivineHorizon67]

I recently purchased a sapphire rx 480 nitro, I have had a bit of a Frankenstein PC for the last few weeks as parts have been slow to arrive. I had my memory, AMD APU, MOBO, PSU, Case and Stock Cooler. The PSU is at 500 watts, as it is the recommended wattage for the GPU. Before the GPU was installed, I was able to  get the system to post successfully, but once I installed a GPU, a HDD and some new case fans it would no longer post. When I took out the 8 pin power connector, it was able to post again. I don't have an OS at the moment, as I am waiting for the SSD to arrive.

 

Any ideas on how to fix this problem?

[newbornsoul]

Probable reason: very bad psu (not all 500w psus are enough for a needy graphics card... you should allways buy a reasonably good brand and with 80plus certification)

but we need specs to be helpfull... brands and models preferably

[DivineHorizon67]

it is an aerocool intergrator 500w, and is 80 plus bronze certified. All the reviews say that it is high quality and i can@t find any body else with this problem. The website recommended that i get a 500w psu for my pc

[Funtron5000]

Try setting the graphics output to auto if you can in the BIOS. And make sure you're plugging in your video output cable only to the RX 480 after making that change.

[DivineHorizon67]

thanks, I'll give that a go

[DivineHorizon67]

16 minutes ago, Funtron5000 said:

Try setting the graphics output to auto if you can in the BIOS. And make sure you're plugging in your video output cable only to the RX 480 after making that change.

I tried that but it still didn't post. the fans are turning on but nothing will show on the screen, even if i use the MOBO's HDMI port

[Cracklingice]

And it works without the rx480 installed?

[DivineHorizon67]

 

4 minutes ago, Cracklingice said:

And it works without the rx480 installed?

if i leave it installed, but take out the 8 pin power connector it posts

[Cracklingice]

Ok.  What motherboard/CPU? what slot is the GPU installed in?  Have you tried updating the BIOS yet?

[DivineHorizon67]

I have the A10-7890k and the MOBO is the Gigabyte F2A68HM-HD2, the gpu is installed in the top slot, and i can't update the bios as i don't have an os

[Cracklingice]

6 minutes ago, DivineHorizon67 said:

I have the A10-7890k and the MOBO is the Gigabyte F2A68HM-HD2, the gpu is installed in the top slot, and i can't update the bios as i don't have an os

Do you not have another computer?  Bios updates do not require OS, just need a usb thumb drive for most boards now that floppy drives are dead.