Some weird display problem with my PC

[And009]

Hi,

i have a R9 285 on a ASUS mx5a99fx mobo.

The problem is my display goes off randomly.. I'm not sure whether my pc has crashed in the background or not.
Sometimes the sound keeps on playing, but none of the multimedia keys or shortcuts work. but when it started, nothing worked (no sound) except a forced restart.

Now it doesn't start up even after a forced reset. It magically works sometimes, getting rarer with time.

So what do you think is the issue, is it the board or card?

* There are usually no motherboard beeps.. but once i got the message of overclock failure, so reset the clock and also got video card error, only once. Nothing since...
* I tried switching PCIe slot, didn't help (i have 4)
* the card's fan etc keep spinning, no change/sounds or weird behavior inside the cabinet
* the display says no input
* the time for the PC to shut down after i press the power key is about 6-7 seconds (which is the usual shutdown time)
* sometimes the power key doesnt work, and sometimes the PC turns back on ASAP
* I recently got the mobo back from RMA due to the ram slot not working.

I'll add more points if i remember, but my troubleshooting has left me confused

 

[hang-the-9]

Need to know power supply brand and model, from the issue with the power not working properly it's a power supply issue. If anything is overclocked, set it to stock, reset the BIOS to defaults.

 

[And009]

Need to know power supply brand and model | reset the BIOS to defaults.

Really sorry, about the late reply,
The PC is still not working, the PSU is a Corsair VS 550 (550W).

All the fans LEDs are working even with no display signal
Might be the PSU, but I did hear a sound coming from the cabinet once, sounded like the Hard Disk, but my primary drive is an SSD (disconnecting other conventional drives has no effect on boot).

I get the splash screen - windows loading - Black screen, it looks like corrupted OS at this point of time, but the initial symptoms say otherwise

I'll update if i find anything more. The motherboard beeps are still silent except a single beep at power on.

EDIT: I have reset all overclocks, then set everything to default in BIOS which seems to be working fine now

 

[hang-the-9]

The VS power supply is a low end one from Corsair, would be a good thing to replace at some point.

 

[And009]

The VS power supply is a low end one from Corsair, would be a good thing to replace at some point.

Really? I thought my pc can hardly push that limit, but it was working well for over a year. So lack of power hasn't affected me much I guess, but I wouldn't know for sure.

I got the stupid motherboard back from RMA, they fixed the ram slot. I fear that's the culprit gone rogue again.

Do you have any suggestions or test that I can try to narrow down the issue?

 

[hang-the-9]

The wattage does not matter, the VS is just a lower quality unit. http://www.corsair.com/en-us/power-supply-units The VS is their lowest model.

If turning off overclocking fixed the issue, just run it that way.

 

[And009]

The wattage does not matter, the VS is just a lower quality unit. http://www.corsair.com/en-us/power-supply-units The VS is their lowest model.

If turning off overclocking fixed the issue, just run it that way.

Still not working, it crashes randomly, I don't mind not having overclock but need to find the issue so that I can send that part for replacement

 

[hang-the-9]

You said in the edit that it was working, if it's not and you got a replacement motherboard, that may be it, or it may be the video card or PSU. Test the card in another system, maybe try another PSU in yours, or contact the motherboard vendor and see what they say.

 

[And009]

You said in the edit that it was working, if it's not and you got a replacement motherboard, that may be it, or it may be the video card or PSU. Test the card in another system, maybe try another PSU in yours, or contact the motherboard vendor and see what they say.

I meant the BIOS, it wasn't working earlier.. Thanks for the help though.. I think i'll have to send more than 1 part for replacement