R9 270X Usage drops drastically and so do FPS

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Tobias Kuess

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Hello everybody,

as the title says, I'm having a huge problem which occures in every game. My FPS drop every 2 - 3 minutes for 10 seconds, but they drtop to 5 - 10 FPS ! Usually they go from around 50 - 60 (depending on the game) to ~8, every game behaves like that.

I monitored the CCC while testing out where the problem comes from and I found out that the 'Activity' drops for example from 65% to 15%, stays there for a few seconds and goes up again, back to normal. That is exactly at the same time the FPS are dropping.

My GPU is at 50° Celcius max, CPU is under 50 all the time.

I am using a FX8320 and 8GB of RAM. Has anybody an idea what might be causing the problem?
 
Solution
A
Get a good PSU, the only thing I can find about that PSU you use is from 2009 and even in 2009 it was considered trash, says a lot.

I think that's the biggest problem for you.
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TomTom111

TomTom111

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To properly take care of the problem, it's best to know what's causing it.
There could be a number of things causing it.
If this only occurs during online gaming, it may be that you are experiencing packet loss.
If this occurs all the time, the card may be dirty or something physically defective with the card.
This can also be caused by a virus.

Another thing you can try is to overclock the memory modules on the card.
The reason for this is it may be experiencing some kind of bottleneck on the card.
Check the HDD activity in the resource monitor.
If the HDD activity is high, this may also be causing your issue.
Also, you can try to reinstall CCC.
 
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Tobias Kuess

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This doesn't occur on multiplayer games only, I am having a good and a stable 100mbit/s upstream connection just used by this PC and nothing else. Console and Smartphones, Notebook and TV are in a completely other connection which has nothing to do with this one.
This occurs during every game from ArmA 3 till GTA IV and even strategy games which are not that demanding to the GPU..

I will try to overclock it, what is a good value to set there?
 
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Tobias Kuess

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Asus M5A78L LE is my motherboard.
Have the latest driver for my graphicscard since I bought it few weeks ago and had to update. I flashed my BIOS as I inserted the FX8320 to the newest version.

Which software could else be updated in this matter?
 
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Tobias Kuess

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I removed CCC and did a fresh install, picked the beta driver this time just to take another version. Sadly I still have the same problem.

Tried out with Age of Wonders 3, GTA IV and DayZ. Every game pushes the GPU Usage to 50% - 60%. It stays there, and while it does the games run smooth just as they should with on this hardware.
Then, out of the blue, the usage drops down to 15% and so do the FPS.

I tested things out with FurMark. Most of the time the Usage stayed over 98%, it dropped to 64% one time..
 
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Tobias Kuess

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I tried my HD 6850 earlier today which was suffering the same issue. That's why i think it cant be the card itself. Or am I wrong?
The HD6850 was working fine, then i upgraded my CPU and the GPU along with a new HDD and a monitor..
 
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TomTom111

TomTom111

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No problem!

500 is a bit close for me.
You won't have any problems as long as you don't overclock.
But i am an advocate of headroom when it comes to PSUs.
 
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Tobias Kuess

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Ok good, so I will buy a 600W.

Does it matter if I use the adapter from 2x 4-pin to a 6-pin connector which was delivered whith the graphiccard or use one of the 6-pin cables which come out of the PSU directly? Is there any difference?

Cause the R9 270X needs two plugs beside the power that comes from the PCIe. I plugged one of them directly to a 6-pin coming out of the PSU. For the other one I used one of the two adapters which came with the r9. Is it somehow recommended/necessary to use the adapters?
An I am struggling with the tables printed on PSUs, I don't know how to read them or how to compare the informations in these tables just like in these pictures:

http://portal.cdn.erodov.net/reviews/other/costly-psu/3.png
 
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Tobias Kuess

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Update: I found out that the same is happening to the CPU. The CPU clock drops from 3.751.68 MHz (Standard for this CPU) to 1.405.93MHz at the exact same moment when the GPU Usage drops and the FPS do. Is there a way to make the CPU clock stable at 3.6GHz and preventing it from going down somehow?

Also i tried to load my CPU and pushed it to 100% usage, then I started FurMark, so GPU and CPU were running at the limit without any drop, system was stable too, so I don't think it has something to do with the PSU ?

NEW UPDATE:
The Core Voltage of my CPU is going up and down all the time causing the CPU clock to go up and down too. it jumps between 1.080V and 1.372V - could that be the issue?
 
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