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CPU Throttling down, VID drop, Core use 100%....please help!

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January 26, 2014 5:02:59 AM

Hi,

In need of some help here!!

I've just built my own gaming rig for the first time, and it works fine....apart from intermittent FPS droop.
In Prepar3D it will go from 33fps (limited to 33) to 5fps, then back up to 33 and be rock steady for a short period...then back to 5fps...etc.

I've done a lot of soul as well as web searching and tried quite a few things.
Updated the RAM, played with the bios (turning off cool and quiet as well as other suggestions from web searches) etc. Nothing helps.

My specs are:
CoolerMaster HAF XM Mid-Tower ATX Gaming Computer Case
Seidon 120M CPU Water Cooling Kit
CX Series CX750 750 Watt ATX 12V Power Supply
FX 9590 Black Edition 4.7GHz Eight-Core Socket AM3+ Boxed Processor
970 Extreme4 Socket AM3+ 970 ATX AMD Motherboard
ThermalFusion 400 Thermal Compound
2x 03G-P4-2783-KR NVIDIA GeForce GTX 780 Superclocked 3072MB GDDR5 PCIe 3.0 x16 Video Card SLI.
Ballistix Elite 16GB DDR3-1866 (PC3-15000) CL9 Desktop Memory Kit (Two 8GB Memory Modules)

Did I screw up the specs? Or will this jumble of components work well together?


I ran diagnostics using HWinfo64, and it came up with this.

Running Smooth.
Core VID 1.513 (All 8 are the same...)
NB VID 1.125
Core Clock 4690
NB Clock 2195


Running Slow.
Core VID 0.875
NB VID 1.125
Core Clock 1397
NB Clock 2195


Core Usage:
Before some of the slowdowns they all go to 100...but not always.

38.4 100 69.2 100 53.8 100 38.4 84.6 Normal
25 100 75 87.5 75 81.2 75 75 Slow
0 100 100 50 0 50 0 100
57.1 100 100 100 71.4 100 100 100
8.3 100 58.3 83.3 50 50 83.3 41.6 Back to normal

Total CPU usage:

73 Normal
74.2 Slow
50
91.1
59.4 Back to normal


CPU 0 Temps:

47.3 Normal
43.4 Slow
36.3
29.3
46.4 Back to normal

CPU Temps

54 Normal
54 Slow
52.5
50
49.5 Back to normal.


Motherboard C steady at 33.



The only thing I think might have had an effect was active core control.
I set it to one core, and it seemed to run P3D smoother, if somewhat slower.

Since I don't really know what active core control is, I turned it back to all.

I hope someone smarter than myself will take the time to help me out here!!

Thanks a lot
Ken








a b à CPUs
January 26, 2014 5:09:51 AM

The problem is the motherboard.
That board can barely handle the 8xx0 cpu's let alone the 9xx0 cpu's (speaking from experience).
You are going to need a good 990FX board to run that cpu.

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a b à CPUs
January 26, 2014 5:11:28 AM
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Its simply over heating, IMO that cpu is terrible; just a lazy build from AMD.

SO yeah you need at least something like a Corsair H80 to cool it.
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January 26, 2014 5:24:04 AM

Thanks guys!

Never thought the motherboard might be the culprit, but it makes sense.
Would it be overheating? Even leaving the game on for a long time it never goes above the high 50s?

So, bottom line...changing the motherboard and the cooler "should" fix this?

Ken
a b à CPUs
January 26, 2014 5:25:28 AM

KenRian said:
Thanks guys!

Never thought the motherboard might be the culprit, but it makes sense.
Would it be overheating? Even leaving the game on for a long time it never goes above the high 50s?

So, bottom line...changing the motherboard and the cooler "should" fix this?

Ken


Upgrade the mobo first and see what its like but with that CPU i would strongly recommend getting better cooling.
January 26, 2014 5:29:54 AM

Ok, will do.

would "ASRock 990FX Extreme9 AM3/AM3+ ATX AMD" be a good 990FX board?
Sorry, but as you probably already understand I'm slightly north of clueless!!

Ken
a b à CPUs
January 26, 2014 5:34:39 AM

KenRian said:
Ok, will do.

would "ASRock 990FX Extreme9 AM3/AM3+ ATX AMD" be a good 990FX board?
Sorry, but as you probably already understand I'm slightly north of clueless!!

Ken


Yes, that motherboard is very good and will last you at least 5 years of high performance.
!