PC Fails to Boot When New GPU is Inserted

xDJKingx · Jan 21, 2014

PC Specs:
AMD A6-3650 Quad-Core APU 2.6 GHz
Pegatron AAHD2-HY Motherboard
Enermax NAXN 450W PSU
HIS iPower IceQ X² Turbo Radeon R9 270 2GB GDDR5 PCI 3.0 GPU
8GB DDR3 RAM
Windows 7 Home Premium (64-bit)

I've recently purchased the HIS Radeon R9 270 2 GB GDDR5 GPU as a necessary upgrade to my PC, I've deleted my old GPU drivers via Driver Sweeper, Ran the Installation Disc that came alongside the GPU, and shut down my computer. I proceed to remove my old GPU and installed the new one. When I powered it up. . . nothing. Monitors receives no signal, yet the GPU fans spin, along with the CPU and PSU fans. I proceed to follow the series of procedures to determine the issue:

- Removing the new GPU and setting BIOS to disable on-board graphics
- Removing both SDRAM chips from the Motherboard to check for POST beeps
- Unplugging all unnecessary components (USB cables, DVD-ROM, etc.) to check if PSU is under load
- GPU reseating and plugging into both PCIe 6-pin and 6+2 pin PSU connectors
- CMOS restarting / CMOS Battery removal and reseating
- Using included DVI-I Adaptor on old GPU to see if I get a signal
- Testing output ports of the GPU (DVI, HDMI, etc.)
- Checking for any new revisions for MOBO on manufacturer's site
- Tested on secondary PC, in short: GPU is not DOA. Repeat, GPU is NOT DOA

The tests yield no changes to the situation. I currently have a few possible issues
- Faulty DVI to VGA Adaptor
- Incompatible MOBO

Any possible solutions, oversights, incompatibilities, or errors please report.

rolli59 · Jan 21, 2014

Connected power from the PSU to the card?
Could be a faulty card.

faalin · Jan 21, 2014

did you try plugging the monitor cable into the motherboard? I see that you turned the onboard gpu off but sometimes the bios can be stupid. just a thought. also does the psu have enough power to run the new gpu, even though it turns the gpu fan on it might not have enough power to fully run the gpu.

brarboy · Jan 21, 2014

i think its your psu limiting power of your whole system. Try atleast 500 watts psu and tell the results.

rolli59 · Jan 21, 2014

450watts with a single 6pin PCIe card power is all that is needed for a system with a single 270 http://www.realhardtechx.com/index_archivos/Page362.htm

xDJKingx · Jan 21, 2014

faalin :

- I completely removed the GPU from the PC when changing my BIOS settings.
- I'm pretty sure 450 Watts is enough to power at least one 270.

rolli59 · Jan 21, 2014

xDJKingx :

faalin :

- I completely removed the GPU from the PC when changing my BIOS settings.
- I'm pretty sure 450 Watts is enough to power at least one 270.

Did you connect the 6pin PCIe power?

xDJKingx · Jan 21, 2014

It was one of the procedures I performed above.

- GPU reseating and plugging into both PCIe 6-pin and 6+2 pin sockets

rolli59 · Jan 21, 2014

So you have the 270X with two power connectors? In any case if you can try the card in another computer we would know if it is the card?

xDJKingx · Jan 21, 2014

rolli59 :

I have the single-connector 270, it only needs one 6-pin PCIe connector. my PSU has a 6-pin and 6+2-pin connector

There are no other compatible PCs in my household, so I cannot test with another computer.

brarboy · Jan 21, 2014

a power supply will slowly lose some of its initial wattage capacity with time. This ain't new build+neither a 80plus certified product so you never know how much yours could have decreased. Just suggesting, rest it's up to you

rolli59 · Jan 21, 2014

That is the problem then we can chance it and say the card is broken, biggest chance since everything works without iit, the PSU is big enough and the card should work fine on your motherboard!

xDJKingx · Jan 21, 2014

brarboy :

Both the GPU and PSU are very recent straight from-the-box installations, with the PSU being a week newer. Not many changes could be made in such a short period of time.

xDJKingx · Jan 21, 2014

rolli59 :

I would've RMA'd it by now if it wasn't for still looming variables, such as the DVI-I to VGA adapter not giving signals period or the MOBO's last revision being of early 2012.

rolli59 · Jan 21, 2014

That is it, without trying the card in another computer we do not know. The only other thing it could be to me is incompatibility with the motherboard but do not expect BIOS updates from HP. I have never seen a bad adapter but seen them plugged into a DVI-D port without the contacts for VGA.

xDJKingx · Jan 21, 2014

rolli59 :

Just tested it on my secondary computer. . .runs with no problems.
Display works, installing drivers, in short: GPU is not dead.

rolli59 · Jan 21, 2014

Most likely motherboard then, some boards need BIOS upgrade for 3.0 cards, but to make sure can you try the PSU in there as well?

xDJKingx · Jan 21, 2014

rolli59 :

Possible MOBO incompatibility, but my secondary is running all stock with a 250 Watt PSU connected via SATA-to-PCIe connector, so it's definitely not the PSU.

xDJKingx · Jan 21, 2014

Any more solutions?

PC Fails to Boot When New GPU is Inserted

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