Huge FPS drops. AMD FX8350 + R9 290

shdx · Feb 16, 2014

Hello, I have this problem with my new PC. My FPS drops from 65-70 to 15-20 for few seconds and then back to normal. This his happening every minute or so. I have tried pretty much everything and nothing helps.

Specs:

CPU: AMD FX 8350
GPU:Shappire R9 290 tri-x
Motherboard: ASRock 970 Extreme4 (last BIOS)
RAM: 8Gb 2x4Gb G.Skill Ripjaws X DRR3
OS: Windows 7 64bits

Screen of the iusse happening:
http://i.imgur.com/SpzrlRl.jpg

GPU-Z sensors. I pointed out the GPU Core Clock drop of when it happend.
http://i.imgur.com/kqIYk6S.jpg

All kind of programs, seconds after it happend.
http://i.imgur.com/Z0VwtNW.jpg

It is also happening at Crysis 3 and others games. I dont know what it could be. Someone can help me with this?
Thanks in advanced.

rolli59 · Feb 16, 2014

Looks like CPU thermal throttling, what cooler do you have?

shdx · Feb 16, 2014

Noctua NH-U12P SE2

barto · Feb 16, 2014

You have a Noctua cooler with CPU temps in the upper 60s. Something isn't right. You haven't overclocked (default Vcore and freq). Do you have proper air flow in your case? Did you apply thermal paste on the CPU when installing the cooler?

rolli59 · Feb 16, 2014

Well looking at your CPU temp 68°C is high for FX8350 especially with that cooler. Either the cooler install is not correct or the software is reading wrong. Your issues point to the software being somewhat right.

md1032 · Feb 16, 2014

I'd guess something is wrong with your power supply or motherboard. Look at the min/max voltages. Your CPU Vcore is dropping from its maximum value by almost 40%. I'm surprised your computer isn't shutting down or randomly restarting because if that's what's really happening, I don't even know how your CPU is staying operational. If you have dynamic voltage enabled right now, disable it and try running at a known good fixed voltage.

edit: Also, as others have mentioned, try running with the side removed from the case and aim a fan at the motherboard.

rolli59 · Feb 16, 2014

The drop in Vcore is normal for CPU throttle.

shdx · Feb 16, 2014

I did not changed any CPU settings.

CPU conf at BIOS:
http://i.imgur.com/rAJ1dMW.jpg

PSU: Corsair CX750M 750W 80 Plus Bronce

pic of the case. (air direcction):
http://i.imgur.com/xiygXiI.jpg

rolli59 · Feb 16, 2014

Multiplier Voltage change auto basically when the rig throttles it will drop the vcore voltage because of the lower multiplier! In any case it would be a board issue not PSU since the voltage regulation is on the board!
You need to be looking at your cooling since it is the issue based on the temp!

Just looked at the picture and can you turn the cooler the other way (90°) since right now you are trying to cool the CPU with the hot air coming from the hottest GPU on the market!

barto · Feb 16, 2014

I was going to say the same thing as rolli. Turn the cooler so it is exhausting out the back of the case not out the top. I did the same thing with my old Q9550 build and temps were always higher from sucking heat off my 460 GTX.

shdx · Feb 16, 2014

both cooler fans are working. Should I change the CPU's thermal paste?
I cannot turn it down 90º due to a rectangular backplate of AM3 motherboards(its not a square just have one position)

rolli59 · Feb 16, 2014

As a test turn the fans or just the the top fan and take the other one of and if you have a top fan stop it and see if it affects temps.

AnEwG · Feb 16, 2014

It could be a VRM issue.
This Asrock motherboard supports CPUs with TDP up to 125. Although the 8350 is advertised as a 125 TDP processor, it is actually a 140w TDP processor.
There is also a note on your motherboard's supported CPU page, that "For cooling the FX-8150 and its surrounding components, please install a CPU cooler with a top-down blowing design." (The FX-8350 is not on the supported CPUs list)

shdx · Feb 16, 2014

I switched the fan's direction to a top-down and is still happening.

Also ordered this http://www.noctua.at/main.php?show=productview&products_id=36&lng=en

I thought that motherboard was fine with FX 8350. Should I change it?

AnEwG · Feb 16, 2014

According to this, it is not on the motherboard support list:

http://www.asrock.com/mb/AMD/970%20Extreme4/?cat=CPU

My guess is that this mobo doesn't support any cpu with tdp higher than 125w.
Edit: It does actually support a Phenom II X4 140w TDP processor, but not the FX-8350. Maybe you should contact their customer service and ask them about that.

This could be related to your problem although it is an MSI board:
http://forums.anandtech.com/showpost.php?p=34588633&postcount=24

barto · Feb 16, 2014

AnEwG :

I've seen this recently in a couple builds. The fact that the CPU isn't on the supported list could definitely be the issue. People assume since the 8300 is on the list, that all 83XX CPUs are supported, thus taking it as a generalization. But that isn't true. The 8300 is an actual processor that's typically unavailable in the US unless it's an OEM.

Just for an inquiry with another thread, I emailed ASRock Tech Support just to see if it was a typo or something. Their response was if it's not listed, it's not supported.

Good catch.

rolli59 · Feb 16, 2014

https://docs.google.com/spreadsheet/pub?key=0AgN1D79Joo7tdE9xMUFlMEVWeFhuckJEVF9aMmtpUFE&chrome=false&gid=2 still does not explain the high CPU temp.

AnEwG · Feb 16, 2014

The MSI board in the link I posted reported CPU temperature way beyond the actual CPU tempreture to throttle CPU speed to avoid overheating the VRM.

rolli59 · Feb 16, 2014

AnEwG :

yes they report 225°C or 255° which is obviously wrong not 68°C

AnEwG · Feb 16, 2014

Still, reporting a temperature over the max temperature of the CPU would cause the voltage throttling, regardless how much the temperature is, or at least that is what I think. What is certain though is that this board doesn't have a bios that supports the FX-8350.

rolli59 · Feb 16, 2014

AnEwG :

Well here is the funny thing from notes for release of BIOS 2.30 for the exact board "2. Improve AM3+ FX-8350 and FX-8150 CPU compatibility."
Looks like Asrock tech support replied with a standard safe answer when they do not know!

AnEwG · Feb 16, 2014

But why didn't they add it to the supported cpus list then? It seems like every FX cpu on the list is supported since the release of a certain bios upgrade. The initial version of bios only supports AM3 socket processors.

rolli59 · Feb 16, 2014

AnEwG :

Good question maybe for the same reason MSI does not either in many cases and their US site support is different list to Taiwan list. That is lack of interest as an example Asrock has 2 EXTREME 3 versions and ver2 starts with Vishera support and has FX8350 the other one has the FX8300 only although it appears to be the same board.
MSI Has FXA990FX GD80 in ver 1 and 2 with the only difference being that ver2 had Vishera support out of the box and currently they only post BIOS updates on the first board and ver 2.0 has not seen a BIOS update for a long time even though it has its own webpage. They both use the same BIOS's since it is the same board.

bystander · Feb 16, 2014

What does that AUXTIN reading mean. It is maxing out at 128C. That can't be good.

AnEwG · Feb 16, 2014

I have a fxa990-gd65 with a B2 stepping which I had to upgrade to C0 bios just in case.
Most people report similar AUXTIN temperatures so it is nothing to worry about.

Huge FPS drops. AMD FX8350 + R9 290

Reputable

Titan

Reputable

Expert

Titan

Distinguished

Titan

Reputable

Titan

Expert

Reputable

Titan

Honorable

Reputable

Honorable

Expert

Titan

Honorable

Titan

Honorable

Titan

Honorable

Titan

Champion

Honorable

Share this page