Psu wattage help please

[Nicconicnic]

Good day all,

 

I have just finished building a new rig however I think that the psu is either faulty or underpowered. 

 

The screen was loosing signal in windows about 2 to 10 minutes after logging in. I had to turn the power off at the psu unit and unplug the power cord every time this occurred. Power and reset buttons did nothing. All fans and case leds etc remained on.

 

I changed all of the sleep settings and reseated the vga card and all ram modules.. didn't change anything.. i also flashed the mb and updated to the newest bios and drivers.. didnt work.

 

I then changed the vga card psu output  slot from vga1 to vga2 and the system ran fine for about 30 minutes until i had to shut down to go to bed.

 

Question is whether my psu is too low rated or if it sounds like it's faulty.  

 

My system is:

 

Psu - evga 750w g2 supernova 

Cpu - amd ryzen 7 1700x

Mb- asus rog strix b350f

Ram- 4x 8gb 2400mhz ddr4 kingston hyperx c15

Vga - zotac 1060 mini 6gb

Wifi ad adapter -ASUS PCE-AC68 802.11ac Dual-band Wireless-AC1900 PCI-E Adapter

Cooler - thermaltake water 3.0 extreme s 240mm

Storage - adata xpg sx8000 128gb for system and os, 256gb wd blue 3d nand ssd and 1tb wd black hdd.

 

I run 4x coolermaster 120mm jetflow fans as well.

 

I run a temp monitor and all my temps are below 40°c when the monitor looses signal and cpu gpu loads are 0-3%.

 

I tried 2x monitors.

 

I tried the mb hdmi port and it didnt register - with or without the vga card in.. maybe an onboard graphics disable setting that i didnt change first?

 

 

Any ideas would be much appreciated. 

 

Monitor never looses signal in bios, memtest (ran with 0 faults found) or any form of start up.

 

Its only once ive logged into windows and start clicking on folders or control panels etc that it looses monitor signal.

 

Thank you very much in advance.. i know i wrote quite a bit..

 

 

 

[tomoki]

I don't think your PSU is too low power. 750W is enough to power anything these days unless you go full on water cooling + 2 graphics cards and some really power hungry chip. 

 

It sounds more like a cpu problem to me. Whenever my computer shut down, it was because my overclock wasn't stable. I'm not sure if you overclocked or not but if you haven't, you may want to attempt underclocking it. 

[Nicconicnic]

Thank you.. nothing has been overclocked at all on this build 

[Nicconicnic]

The computer doesn't actually shut down as such.

 

The monitor just looses signal and i have to switch the psu power switch off to turn the computer off.

 

The power and reset buttons wont do anything when the monitor has lost power.

 

I changed the vga output connection point on the psu from vga1 to vga2 and the computer didn't loose connection to the monitor for the next 30 mins.

[mariushm]

Your system uses less than 200-250 watts when gaming, so the power supply should be fine.

 

Ryzen 7 1700x... up to 100-120 watts , the GTX 1060 maybe 100-120 watts , the rest up to 50w or something like that.

 

Change the HDMI cables. I've had random disconnects and reconnects on these modern cards when using old HDMI cables (some i had for 5+ years when non-led backlight LCD monitors were common). Had to buy better HDMI 1.4 cables with my RX 570 cards.

 

The video connectors on the motherboard only work if the processor has integrated graphics .. your Ryzen 7 doesn't have integrated graphics.

 

If the system is like it turns off, then it could be power supply. If only the monitor turns off but the computer is functional - for example, put something on a network share and try to access that from another computer when the monitor turns off, or leave some music playing and if it continues to play while monitor is turned off then your system doesn't freeze, psu works fine, it's video card or monitor related (or video cables)

 

Go to control panel , power options and play with the settings and turn off the feature to turn off the monitor after x minutes of inactivity. Maybe for some reason the system doesn't turn on the monitor or incorrectly thinks you've been away from computer for so many minutes and turns off the monitor.

 

If the system turns off completely, then while computer is running use HwInfo or Aida64 and check the temperatures in your computer, make sure the processor doesn't overheat.

Maybe you didn't install the cooler correctly .. make sure the fan spins, make sure you didn't leave some sticker on the cooler if there was any... if the system turns off then right after that happens maybe try touching the heatsinks on the motherboard and see if there's one of them that's super hot ... that could point to some failing component.

 

 

26 minutes ago, Nicconicnic said:

Good day all,

 

I have just finished building a new rig however I think that the psu is either faulty or underpowered. 

 

The screen was loosing signal in windows about 2 to 10 minutes after logging in. I had to turn the power off at the psu unit and unplug the power cord every time this occurred. Power and reset buttons did nothing. All fans and case leds etc remained on.

 

I changed all of the sleep settings and reseated the vga card and all ram modules.. didn't change anything.. i also flashed the mb and updated to the newest bios and drivers.. didnt work.

 

I then changed the vga card psu output  slot from vga1 to vga2 and the system ran fine for about 30 minutes until i had to shut down to go to bed.

 

Question is whether my psu is too low rated or if it sounds like it's faulty.  

 

My system is:

 

 

[ ... ]

 

I tried the mb hdmi port and it didnt register - with or without the vga card in.. maybe an onboard graphics disable setting that i didnt change first?

 

 

Any ideas would be much appreciated. 

 

Monitor never looses signal in bios, memtest (ran with 0 faults found) or any form of start up.

 

Its only once ive logged into windows and start clicking on folders or control panels etc that it looses monitor signal.

 

Thank you very much in advance.. i know i wrote quite a bit..

 

 

 

 

[Nicconicnic]

Thank you. 

 

None of the temps go above 40°c .

 

I have turned all of the sleep options in control panel. 

 

It's not like a full shut down when it happens. Its like the psu is tripping and cuts power to the vga card? 

 

I'll try another hdmi cable today too. That might be useful.

 

I'll pick up another psu too to see if the psu is at fault.. i switched the vga power cable on the current psu from vga1 to vga2 and the monitor stayed connected. 

 

Is it possible for 1 vga port to cut power on a psu and another to work fine?

[STRMfrmXMN]

That PSU is really good and 750W is plenty. Your problem probably lies elsewhere.

[Nicconicnic]

43 minutes ago, STRMfrmXMN said:

That PSU is really good and 750W is plenty. Your problem probably lies elsewhere.

Thank you.  So its not possible for the psu to be faulty in this case?

[STRMfrmXMN]

57 minutes ago, Nicconicnic said:

Thank you.  So its not possible for the psu to be faulty in this case?

Is it possible, but I doubt it's your problem.

[Nicconicnic]

10 hours ago, STRMfrmXMN said:

Is it possible, but I doubt it's your problem.

Thank you.. i did try a different psu and didnt work...

 

I reset cmos and didnt work.

 

Changed the vga card pcie port on my mb and still looses signal.

 

Cpu seems fine with no temps over 30°c today and no pins bent etc (checked that carefully too).

 

Does this sound more a motherboard issue or a grapics card issue?

 

I have tried a brand new hdmi cable as well with no success.

[STRMfrmXMN]

9 hours ago, Nicconicnic said:

Thank you.. i did try a different psu and didnt work...

 

I reset cmos and didnt work.

 

Changed the vga card pcie port on my mb and still looses signal.

 

Cpu seems fine with no temps over 30°c today and no pins bent etc (checked that carefully too).

 

Does this sound more a motherboard issue or a grapics card issue?

 

I have tried a brand new hdmi cable as well with no success.

At this point I'd make a new Troubleshooting topic as this is really weird, my friend. I'm not really sure.

 

I'd probably rule out the motherboard first? That's not exactly an easy component to just swap in though.