GPU broken? Can't get a picture, doesn't show up in BIOS, fans are running

[Shlx94]

Hi,

My monitor broke last week, so I went and ordered a new one (BenQ GL2450) off of Amazon. At first, everything was running fine. I just plugged my HDMI Cable into the new monitor and everything worked.

The next day however, I couldn't seem to get a picture at all. After trying different cables (VGA, a different HDMI) and turning everything off and on again a few times, I went and plugged the HDMI Cable directly into the motherboard because I still couldn't get a picture. Afterwards, I had a picture again and was able to check up on my GPU.

After not being able to find it in the device manager, I restarted and checked the BIOS. Sure enough, my graphics card (Gigabyte Radeon 7950) didn't show up, so I thought my GPU was broken as well (weird coincidence, right after getting a new monitor, literally over night?). Earlier today, it took me two attempts (restarted my pc once) to get a picture, but I didn't think much of it.

I decided to open up my pc to check on my GPU and the fans were in fact running. After shutting down my pc, I took out the power cables and plugged them back in and also reseated the whole graphics card thinking that it might fix it. However, now I can't get a picture at all, even though the HDMI cable is still plugged into my motherboard. Tried different cables, restarted everything a few times - nothing. The monitor just shows a "no signal" type of message.

So what's going on? Is my GPU really broken? Is something wrong with my motherboard (ASRock B75 Pro3)? Is it maybe just the monitor? Something else altogether? My pc is about four years old, except for the PSU which I got two months ago because the other one broke.

Cheers, thanks for any help. Getting replacement parts is no problem, I just can't be sure what's broken exactly.

Edit: Just hooked the monitor up to another pc and everything works fine. Seems like it's my motherboard then?

 

[Barty1884]

Can you post your full spec?

Onboard graphics *shouldn't* work (sometimes do) when a GPU is installed - so I would suspect your GPU wasn't being detected for the onboard to work.

Is there any sign of life to the GPU? Fans spinning, LEDs (if any, but it's a little older, probably not).

What PSU did you put in there? And what did it replace? Again, full specs would be helpful.

 

[Shlx94]

Can you post your full spec?

Onboard graphics *shouldn't* work (sometimes do) when a GPU is installed - so I would suspect your GPU wasn't being detected for the onboard to work.

Is there any sign of life to the GPU? Fans spinning, LEDs (if any, but it's a little older, probably not).

What PSU did you put in there? And what did it replace? Again, full specs would be helpful.

Sure:

Motherboard: ASRock B75 Pro3 Intel B75 So.1155 Dual Channel DDR3 ATX Retail
RAM: 8GB (2x 4096MB) G.Skill NT Series DDR3-1333 DIMM CL9-9-9-24 Dual Kit
GPU: 3GB Gigabyte Radeon HD 7950 Windforce 3X Aktiv PCIe 3.0 x16 1xDVI/1xHDMI/2xminiDP (Retail)
Processor: Intel Core i5 3470 4x 3.20GHz So.1155 BOX
Old PSU: 530 Watt be quiet! Pure Power L7 Non-Modular 80+
New PSU: Thermaltake Hamburg 530W 80Plus Bronze
SSD: Samsung MZ-7PC128B/WW 128GB SSD
HDD: Seagate Desktop ST2000DM001 HDD 2 TB

Yes, the fans are spinning.

I haven't opened up or moved my pc at all after installing the new PSU ~2 months ago (and everything was running fine until a few days ago).

 

[Barty1884]

Can you remove your GPU (not just disconnect power to it, fully remove it from the PCIe slot) and attempt to boot up with the onboard HDMI?

 

[Shlx94]

Can you remove your GPU (not just disconnect power to it, fully remove it from the PCIe slot) and attempt to boot up with the onboard HDMI?

Alright.

By the way, just tried both the HDMI socket on the GPU and on the mainboard again, no picture.

Edit: Got a picture again after taking out the GPU. What does that mean?

 

[Barty1884]

Wit h the GPU fully removed from the motherboard??

 

[Shlx94]

Wit h the GPU fully removed from the motherboard??

Yep. Guess the GPU is gone? Anything else I could try?

 

[Barty1884]

Not necessarily. Try reinstalling the GPU now. Clear the CMOS (either the jumper o nthe board, or remove the little silver battery for 10 mins then reinstall).

It could be the PSU...

 

[KStream]

Can you post your full spec?

Onboard graphics *shouldn't* work (sometimes do) when a GPU is installed - so I would suspect your GPU wasn't being detected for the onboard to work.

Is there any sign of life to the GPU? Fans spinning, LEDs (if any, but it's a little older, probably not).

What PSU did you put in there? And what did it replace? Again, full specs would be helpful.

Sure:

Motherboard: ASRock B75 Pro3 Intel B75 So.1155 Dual Channel DDR3 ATX Retail
RAM: 8GB (2x 4096MB) G.Skill NT Series DDR3-1333 DIMM CL9-9-9-24 Dual Kit
GPU: 3GB Gigabyte Radeon HD 7950 Windforce 3X Aktiv PCIe 3.0 x16 1xDVI/1xHDMI/2xminiDP (Retail)
Processor: Intel Core i5 3470 4x 3.20GHz So.1155 BOX
Old PSU: 530 Watt be quiet! Pure Power L7 Non-Modular 80+
New PSU: Thermaltake Hamburg 530W 80Plus Bronze
SSD: Samsung MZ-7PC128B/WW 128GB SSD
HDD: Seagate Desktop ST2000DM001 HDD 2 TB

Yes, the fans are spinning.

I haven't opened up or moved my pc at all after installing the new PSU ~2 months ago (and everything was running fine until a few days ago).

 

[KStream]

Did you fugure it out? I am in the same situation no picture at all

 

[Shlx94]

Did you fugure it out? I am in the same situation no picture at all

Hi, haven't tried much else, I assume it's indeed dead. Haven't tried clearing the CMOS (what Barty1884 suggested) - it's too much of a hassle, especially since I was going to get a new GPU soon anyway. Good luck to you anyways!