750w is not enough?

[Nightridder1221]

hello all,

 

I'm currently under the impression that my 750w psu is not enough for my system.  Here is the build I'm working with,

 

FX 8350 at 4.5 ghz with no power increase

Corsair H100i v2, pump is locked at max and the fans when gaming are locked at 85%

RX 480 8gig over clocked to 1350 MHz and 2250 on the ram,  no power increase

GTX 745 4gig,  stock and only used for hardware encoding 

Asus Sabertooth 990FX R2.0

Sandisk 120gig SSD

WD blue 4 TB 

4 WD 500gig in raid 0

Logitech G510s keyboard 

Logitech G402

6 no name case fans 

Corsair Vengence C70 

Corsair CX 750M

 

From that list i dont see anything that would super demanding on power.  However I recently started streaming and wante that 1080 60 goodness.  First I tried using the software encoder with obs but the 8350 just couldn't handle it.  That's were the GTX 745 comes in,  Using the RX to run the game and the GTX to handle the hardware encoding.  At first everything seemed to be working just fine.  Now at about an hour in to streaming the computer will just shut off and then restart on its own. First I though it was a crashing from my over clocks or something like that.  Set everything back to stock and tried it again,  same result.  If i try and stream at 720 60 with the hardware encoding, everything works perfectly with near 0 frame drops in game.  The psu is only about 2 years old and gets cleaned regularly along with the hole system.  After running several test it became consistent that the system would shut down and reboot if i tried to go all out.  DId a clean install of windows 10 and keeping an eye on temps while under full load,  CPU at 45c and the RX at 65c GTX at 55c.  There doesnt seem to ba a heat issues causing it so its got to be the power supply.  Not sure if just starting to fail or if its truely is not enough for my build.

 

Any suggestions for test to run or theory's as to why it would be doing this if the psu does infact have enough power to keep everything running would be greatly appreciated.  

 

Thanks all o7 

[dizmo]

It's enough.

[Mattias Edeslatt]

To try to rule out temp problems, try to see if it behaves the same with the case open.

 

If you runt synthetic benchmark and stress test with something like Prime95 or aida64, does it behave the same? 

[STRMfrmXMN]

Quote

FX 8350 at 4.5 ghz with no power increase

Your board compensates by adding voltage, I promise you that much. An 8350 cannot do 4.5 GHz on whatever voltage the CPU runs at out of the box, so perhaps look at what HWInfo64 says your load voltage is and see if you can manually set it a bit lower. You said you've already run the CPU at stock though, so that's probably not the issue.

 

Anyways, 750W is plenty, but your PSU might need an RMA. However, I sort of doubt this. You have an Asus motherboard. Their boards are notorious for over-reacting with the "ASUS ANTI-SURGE HAS SHUT YOUR PC OFF TO PROTECT IT" message when you have little electrical issues in your house and stuff like that. Your board would definitely be telling you if your PSU were failing. I'm inclined to believe it's not the issue.

 

Does your motherboard have any bent pins?

[Stefan Payne]

 Now at about an hour in to streaming the computer will just shut off and then restart on its own.

That happens when you overclock!

You can't just increase clocks and it will magically work. It doesn't as you can see.

 

So you should test it without any overclocking!

 

 

 

 

9 hours ago, Nightridder1221 said:

hello all,

 

I'm currently under the impression that my 750w psu is not enough for my system.  Here is the build I'm working with,

 

 

750W is enough, the PSU might be bad or not good enough for that system.

 

9 hours ago, Nightridder1221 said:

4 WD 500gig in raid 0

 

that's just bullshit.

Because if one connector is bad, all the Data of that 2TB Array are gone.

 

And if you want the Performance, get an SSD because Transfer Rate isn't a problem at all, Access Time is.