Which part to replace

[PCWeeb]

So I have been running a GTX 770 (was unaware of the 600W min for the card, was given to me) with Ryzen 5 2600, 16GB 3200 in an MSI gaming carbon pro on my corsair cx550.

 

It started with some game crashes, screen flickering and freezing. Then I'd lose all video but audio continued to play. Today after freezing HDMI was gone completely but DVI still worked to get to the splat screen, but then after a flicker all video cuts off, but PC continues to run.

 

Now at first I thought it was a fault in the PCIe slot which in turn choked the GPU out,  so I already made plans to replace both mobo and graphics card.

It was until i was informed of the 770's 600W requirement that I realized I could need a new power supply. 

Would the machine still turn on and function normally, aside from loss of video, if the PSU was failing?

 

I'm probably still going to get a new mobo and GPU, I'm looking at a B450 and a GTX 1660 super, but how likely is it that I'll need a new power supply as well.

 

Thank you,

First time poster.

 

[amdorintel]

this is the power draw for the 770 gpu

https://www.tomshardware.com/reviews/geforce-gtx-770-gk104-review,3519-25.html

 

your 550 psu should be fine

 

at what point does it crash in games?

[Streetguru]

5 minutes ago, PCWeeb said:

 

That GPU doesn't really need a 600W PSU. That system isn't going to draw more than 300-350W during a gaming load.

 

Try running the power limit at -50% so there's no real stress on the PSU or GPU.

No real reason to replace your motherboard unless it's actually broken.

 

If you're only gaming at 1080p 60fps an RX 470/480/570/580 will be fine and is $80-100 on ebay.

 

Otherwise the RX 5500 is coming out any day now.

Did you already try reinstalling windows?

Are you running with XMP enabled and no other tweaks? Does it still crash running the memory at stock speeds like 2133mhz or 2400mhz?

[PCWeeb]

It would usually crash about halfway thru gaming. I attempted to reinstall windows and that's when I lost all display completely, so I'm unable to complete the OS install, the card isnt being recognized at all on boot up.

[Juular]

The reason why it has 600W PSU requirement while it draws twice less on average is because this is pretty powerful GPU and it draws very high transient power\currents. So if your PSU isn't enough it may either trip or introduce too much ripple which will affect other components longevity, including the GPU (especially it's VRM). But i don't see how it can lead to the loss of signal, although i'm no electrical engineer so someone can come with explanation for this. What i can suggest is to try to run this GPU on other machine with powerful enough PSU to exclude both your PSU and motherboard from the equation.

[Streetguru]

1 minute ago, PCWeeb said:

It would usually crash about halfway thru gaming. I attempted to reinstall windows and that's when I lost all display completely, so I'm unable to complete the OS install, the card isnt being recognized at all on boot up.

Would need another system to try the GPU with to see if it's the issue.

 

Otherwise maybe replace the PSU and get one of the GPUs mentioned above, if the PSU is old anyways.

 

 

[PCWeeb]

Forgot to mention, prior to losing all video output, I was receiving an error 43 I believe it was, on the 770, when checking the card on device manager.

[191x7]

Dead GPU, nothing more nothing less.

[Otto_iii]

i think you wrote your own answer, get a new GPU, even if its cheap rx470 or 1050 ezpz wadda badda bing bang