Downclocking issue when playing Games SOLVED

[Flaffino]

When playing Games my CPU and GPU clock goes down like 50% every 20 to 30 seconds.
Temps are lookng fine though, cpu max temp is usually 52° at 50% fan speed and gpu max 75° on stock cooler. CPU is being overclocked to 3.9 Ghz which has never been an issue.

FX 8150
R9 390 Strix 8GB OC
Asus M5A87
12GB DDR3

 

[huvik]

What PSU do you have?

 

[Flaffino]

What PSU do you have?

Some Rhombo tech 700w PSU Update: 800w

 

[huvik]

never heard of that brand.

FYI

http://www.tomshardware.com/forum/id-2972533/8350-390-draws-close-800-watts.html

 

[Flaffino]

never heard of that brand.

FYI

http://www.tomshardware.com/forum/id-2972533/8350-390-draws-close-800-watts.html

Thanks for your reply, I tried again with stock clock speeds which made a difference however after about 1 hour of playing clock speeds started dropping again for a few seconds. The temperature in my room was 32° at that time maybe that could influence the power delivery. Is there a way I can measure power usage of my system?

http://outervision.com/b/QQtVQh. Regardless of your results I think the PSU (https://www.amazon.de/RHOMBUTECH-Adapter-Efficiently-Bearing-Mounted/dp/B00O1Y4ODU/ref=sr_1_14?ie=UTF8&qid=1472768743&sr=8-14&keywords=psu) is not the problem because I haven't had the clockspeed drops issue until very recently.

Would you recommend trying underclocking to get stable clockspeeds?

-Update: I found the PSU packaging and its actually a 800w.

 

[huvik]

Its more about the quality of the PSU than the number they print on the box.

YOu can buy a watt meter that plugs in the wall then your PC plugs into it.

 

[burgessanthony]

Psu is garbage and likely culprit. You need a quality 650w unit as you have a hungry CPU and gpu (400w tdp between them alone).

Psu has 4 12v rails and high amps on the 3 volt showing it to be an old desing. Also, 200w per rail is going to be an issue. New psu time.

 

[Flaffino]

Psu is garbage and likely culprit. You need a quality 650w unit as you have a hungry CPU and gpu (400w tdp between them alone).

Psu has 4 12v rails and high amps on the 3 volt showing it to be an old desing. Also, 200w per rail is going to be an issue. New psu time.

Its more about the quality of the PSU than the number they print on the box.

YOu can buy a watt meter that plugs in the wall then your PC plugs into it.

The PSU is fairly new but I will get a higher quality one then. Thanks for your help!

 

[Flaffino]

The Problem was insufficent vrm cooling because I was using a Nepton 240m (Watercooling).
I put custom heatsinks on the mb vrms which helped but didn't solve the issue, its just not meant for OC (amd turbo core technology).