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Processor throttling down issue

1K views 35 replies 11 participants last post by  iinversion 
#1 ·
I have the AMD FX-9590 and it's been running at 4.03 GHz according to windows and CPUID. I was wondering what could be throttling down the CPU. I naturally thought it could have been any kind of power saving feature of the BIOS, but they are all off. I could manually tweak the BIOS and get it up to the 4.7 or 5.0, but should I have to? I want to know if anyone has any idea of what could be throttling my system.

I also had it working in the past when I used Gigabyte's Easy Tune, and left it on default (not overclocked). However I think I updated it because the simple auto overclock window isn't available, only "easy" and "advanced" manual tuning. Now without touching the settings, or even when I uninstall the thing, it stays throttled. My setup is in my signature.
 
#2 ·
APM is turned off and it's still throttling? You should have cool n' quiet and C3 turned on, but APM should be turned off to keep the CPU throttling.

What are the temps on your CPU? The h60 is pretty good, but I don't know if it's enough to tame the beast that is the the fx-9xxx series.

Do you have good cooling in your case? You might want to have direct cooling on the VRMs of your motherboard.

You may also want to see this

https://teksyndicate.com/forum/motherboards/gigabyte-ga-990fxa-ud3-rev-30-stay-away/139832
 
#3 ·
ah sorry, I thought if I went straight to "product match" it would change all the components for me. That was my old build, it should have the proper hardware now.

I put the Antec cooling system under the component, but it's the clone that came with the 9590 bundle on New Egg. It runs quite hot, but just barely at what I'm aware is the limit of 60C. It runs at 100% up to about 55-56C and doesn't seem to go higher. At start up it's only about 18C, so I don't see why it would want to throttle for that.

You should see the other case now, that one came fully equipped with 6 fans already, one I had to take out just to make room for the radiator and it's fan. I don't have room for more fans if I wanted to install them (I really do though).

I turned it all off, as I didn't know I should leave the others on. I'll switch those on and see if there's any results.
 
#5 ·
Here's what I got while using IntelBurn



It seemed to be switching between 1.328V and 1.472V, not sure how normal that is. It's the same voltage when not under 100% load as well.

I turned on Cool n quiet, and C3 with no change, though I didn't really expect it to do much.

EDIT:
Actually found an option under PC health of the BIOS that throttles the voltage and ratio when temperature is too high. I turned it off, but to my surprise it did nothing. I was sure that was going to be the problem heh
 
#6 ·
Quote:
Originally Posted by AdmiralAwesome View Post

Here's what I got while using IntelBurn



It seemed to be switching between 1.328V and 1.472V, not sure how normal that is. It's the same voltage when not under 100% load as well.

I turned on Cool n quiet, and C3 with no change, though I didn't really expect it to do much.

EDIT:
Actually found an option under PC health of the BIOS that throttles the voltage and ratio when temperature is too high. I turned it off, but to my surprise it did nothing. I was sure that was going to be the problem heh
I would try manually setting the voltage to something else. Perhaps try 1.4v @ 4.7 and go from there. 1.47V is a lot for a FX chip and probably consumes close to 300W, which is a lot for any motherboard to handle.
 
#7 ·
hello,
which revision of mobo are you using please?
only revision 4 does support that cpu.
 
#8 ·
I'd be willing to bet you are throttling due to your VRMs getting too hot.

Download hwinfo64 and post your results here.
 
#10 ·
Quote:
Originally Posted by sulc View Post

Looks like RAM problem.Did you check it which speed it supports ?
well spotted, native ram speed is 1866.
 
#13 ·
There's a lot of info on that HWinfo program, so here's the main screen that came up.


I have revision 3, but it was able to get to the speed, so I don't think that has too much to do with it. "Support" usually means "We aren't sure if it'll work and so don't want anything to do with it if you have any questions" but not necessarily that it won't work.

speed what supports? The Motherboard?... what does that have to do with CPU?
 
#14 ·
Quote:
Originally Posted by AdmiralAwesome View Post

There's a lot of info on that HWinfo program, so here's the main screen that came up.


I have revision 3, but it was able to get to the speed, so I don't think that has too much to do with it. "Support" usually means "We aren't sure if it'll work and so don't want anything to do with it if you have any questions" but not necessarily that it won't work.

speed what supports? The Motherboard?... what does that have to do with CPU?
The RAM has nothing to do with the issue you are having.

Your issue is because your VRM's are throttling your CPU when the load is too great on them/they get too hot. This is pretty common with AMD CPU's. Pretty much any 81xx, 83xx, 95xx and even the previous generation X6's. You have always needed high end boards to properly deliver power on huge overclocks with those CPU's because they draw so much. Is what you should do is,

Start seeing what voltage is the lowest possible you can get stable at 4.7GHz. Lower voltage = lower power consumption = lower stress on VRM's.

Putting a fan over the top of the VRM heatsinks may also help alleviate some of the heat.

EDIT:

...unless your issue is happening at idle/low usage.
 
#15 ·
As said above or APM is still enabled which trys to keep the CPU under 120TPD.
 
#16 ·
It's definitely happening during idle time, the computer simply boots and computer properties and CPUID is already stating that it is 4.0 GHZ. So I don't think it's a problem caused by overheating at full load. As for cooling, 2 of the 7 fans in my pc are sitting at the top, right where the VRM on this board is.

I think the overheating issue has nothing to do with this. Like the original post, it's booting up already throttled. The PC is sitting at an easy 20C when booting, I've had all my other processors reach into the 50's easily without this problem. My previous FX-6100 was overclocked from 3.3 to 4.5 GHz in a less cooled case. I really don't want to manually overclock it, I just want it to reach it's normal output, but I guess I'll have to if I can't figure out why it's being throttled.
 
#17 ·
Ouch man hate to tell you this but my UD3 revision 3 couldn't even handle a stock 8350 without a loud fan hovering over the VRMs. Replace the motherboard.

This is a known issue. Just google "UD3 Throttling" or something similar and see how many threads pop up.
 
#18 ·
Quote:
Originally Posted by AdmiralAwesome View Post

It's definitely happening during idle time, the computer simply boots and computer properties and CPUID is already stating that it is 4.0 GHZ. So I don't think it's a problem caused by overheating at full load. As for cooling, 2 of the 7 fans in my pc are sitting at the top, right where the VRM on this board is.

I think the overheating issue has nothing to do with this. Like the original post, it's booting up already throttled. The PC is sitting at an easy 20C when booting, I've had all my other processors reach into the 50's easily without this problem. My previous FX-6100 was overclocked from 3.3 to 4.5 GHz in a less cooled case. I really don't want to manually overclock it, I just want it to reach it's normal output, but I guess I'll have to if I can't figure out why it's being throttled.
Well if it's happening during idle then it'd have to be a bios setting or bios set wrong. Can't really be anything else since your CPU isn't even being stressed. You should manually set everything in the bios like your CPU clock and voltage and make sure APM is disabled. Cool N' quiet/C1E don't really matter. You can also try updating your bios if it isn't already on the latest.

But you are wrong. VRM's overheating has very little to do with PC temperature or that you overclocked your FX 6100 to 4.5GHz in a less cooled case. It doesn't have anything to do with the actual CPU temperature either. They don't overheat because your case isn't cool enough or your CPU is hot. They overheat because in cases where they throttle the CPU, they are not designed to handle the kind of wattage the FX 83xx series draws when under load and overclocked, so when they reach a certain threshold they underclock the CPU to prevent motherboard failure.
 
#19 ·
Quote:
Originally Posted by iinversion View Post

Well if it's happening during idle then it'd have to be a bios setting or bios set wrong. Can't really be anything else since your CPU isn't even being stressed. You should manually set everything in the bios like your CPU clock and voltage and make sure APM is disabled. Cool N' quiet/C1E don't really matter. You can also try updating your bios if it isn't already on the latest.

But you are wrong. VRM's overheating has very little to do with PC temperature or that you overclocked your FX 6100 to 4.5GHz in a less cooled case. It doesn't have anything to do with the actual CPU temperature either. They don't overheat because your case isn't cool enough or your CPU is hot. They overheat because in cases where they throttle the CPU, they are not designed to handle the kind of wattage the FX 83xx series draws when under load and overclocked, so when they reach a certain threshold they underclock the CPU to prevent motherboard failure.
Is there another name for APM? Because I don't see that actual setting in the BIOS. Other than that you still suggest to go 1.4V at 4.7Ghz?
 
#20 ·
On the 990FX-UD3 BIOS, APM is in the advanced CPU Core Features menu.
 
#21 ·
I wasn't updated apparently, my @bios wasn't detecting any newer revisions from server so I just went to the website, now I have the APM option. I thought updating would solve it, and I even now tried the F10e beta update and still throttling after I turn APM off. No luck though. I guess at this point I'm going to have to manually get it to 4.7Ghz
 
#22 ·
Just a word of warning, I'd expect it to still throttle on that board/revision from what I heard. Maybe if you slap a fan ontop of the VRM area you might be able to contain it.. but 4.7ghz is pretty real power draw/heat. (keep in mind it's a factory OC of FX 83xx silicon)
 
#23 ·
Quote:
Originally Posted by AdmiralAwesome View Post

I wasn't updated apparently, my @bios wasn't detecting any newer revisions from server so I just went to the website, now I have the APM option. I thought updating would solve it, and I even now tried the F10e beta update and still throttling after I turn APM off. No luck though. I guess at this point I'm going to have to manually get it to 4.7Ghz
If you want a stable, optimized overclock, you aren't going to get it using EasyTune.
 
#24 ·
I never said I use easy tune to overclock, I only said I was able to get it to 4.7 by itself when I tell EasyTune to go to default (no overclock).

Also I already said 2 of my 7 fans are at the top of the case... which is where the VRM is. I'm not sure how I'd get one any closer to them.
 
#25 ·
Quote:
Originally Posted by AdmiralAwesome View Post

I never said I use easy tune to overclock, I only said I was able to get it to 4.7 by itself when I tell EasyTune to go to default (no overclock).

Also I already said 2 of my 7 fans are at the top of the case... which is where the VRM is. I'm not sure how I'd get one any closer to them.
You'd literally put one on top of them.

But since it's doing this at idle that can't be your problem. You should be working on a 100% manual overclock to anything that is higher than what it is throttling to just for a starting point.
 
#26 ·
Quote:
Originally Posted by iinversion View Post

You'd literally put one on top of them.

But since it's doing this at idle that can't be your problem. You should be working on a 100% manual overclock to anything that is higher than what it is throttling to just for a starting point.
There is a setting in the bios that is probably causing it to throttle at idle.

BUT
even the slightest load will make that board throttle the chip. It is the most poorly designed piece of junk I have ever owned.
 
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