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CPU Drops to 13mhz????

post #1 of 5
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Can anyone explain to me why hwinfo64 reports random drops to 13.2mhz on all core clocks? At the same time I can see the voltage went up slightly and then back to where it belongs. In the picture below you can see the blip in voltage and the complete drop in CPU usage.

Should I be concerned what is this?


Edited by chiznitz - 11/7/13 at 9:27am
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post #2 of 5
Throttling is normal but 13MHz??? Holy throttling Batman! That is going extremely low.
You may want to bring over some of the information that you shared in the thread you were already on like this:

BTW to other posters, this is from a separate thread. Quote from M5A99FX Thread (Click to show)
Quote:
Originally Posted by chiznitz View Post

Currently working on stable 4700, confirmed a stable 4620mhz with a 7 hour prime run overnight, max socket temp was 52C...it was cold outside (below 32F so the air being intaked was awesome smile.gif)


Speed: 204*23=4692
Memory: 1364mhz 9 9 9 25 34
CPU Voltage 1.41875
CPU/NB: 1.15625 (just bumped this up one tick and went from 7 minutes fail in blend to 22 minutes without error so far)
DRAM: 1.490
VDDA: bumped to 2.53750
Defaults Everything else
LLC: Ultra High
Cpu/NB: Regular
CPU Capability: 130%
CPU/NB Capability: 130%
CPU Power phase: optimized
CPU/CPU/NB Response: Regular
CPU Power Thermal Control: 130C
T.Probe

I tested my power supply voltages with a mutlimeter last night and i didn't see any huge flucuations or anything alarming.

I do get lockups if I move voltage above 1.48 but that may be do to heat on the VRMs if that is my Actual issue.

I have a post in the AMD CPU forums about the throttling I'm receiving...is that the correct place? Appreciate the help, this has been super frustrating. I bought the water cooling because with rebate it was only $20 more and all the benchmarks i've seen show this thing as one of the top AIO water coolers, and it really is doing its job, my core temperatures are never anything to worry about. It's always socket or maybe VRM.

Wonder if radio shack stocks a thermal heat tester I could grab

Also, this is some help I received from a fellow OCN'r on my build. It may help you in your runs. thumb.gif
Neurotix Quote (Click to show)
Quote:
Originally Posted by neurotix View Post

Getting a good, stable overclock on these chips with low heat requires massive cooling as they run hot as hell and a board with good loadline calibration.

My Crosshair has DIGI+ VRMs that are heatsinked. I looked up your board and it says it has DIGI+ Power Phase design. So, you might have some of the options I do for power phase adjustment. It looks like your board has heatsinked VRMs so you should be good with these settings. Some of them might be missing, just mimic it as much as you can. Getting these settings right made the difference between having a 5ghz system and a 4.7ghz system.

I got these settings from Krusher33 who used to fold for Dark Predators on a 5ghz 8350 on custom water.

Mine are set thusly:

CPU Loadline Calibration: High (Don't set these any higher than high. You will have some vdroop under load with these settings but that's normal for these chips. If you set them to extreme you will get more voltage on the CPU under load than what you set for CPU VID. This will make the chip run much hotter.)
CPU/NB Loadline Calibration: High
CPU Overcurrent Protection: Disabled (We disable this because sometimes overclocking makes the temp sensors on the chip a little screwy. Sometimes they will read insane values over 90C for a split second when stress testing. This is erroneous. However, if you're running Prime on an overclocked chip and your system shuts off completely, make sure this is disabled and it will fix it.)
CPU/NB Overcurrent Protection: 130%
CPU PWM Phase Control: Extreme
VRM Fixed Frequency Mode: 550khz
*snip*

It looks like you've pretty much got all of those settings the same. (Some of his settings didn't exist in my BIOS btw and I had to find them under different names.)
Edited by Terrere - 11/7/13 at 11:20am
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post #3 of 5
Thread Starter 
I've been through every settings configuration so many times.

I really have no idea why its throttling, maybe its the VRms, that throttle takes me to a 7x multiplier and only happens when when my socket temperatures approach 60C

My hwinfo64 is currently reading 8.1mhz as the minimum clock seen on all cores, what the.hell would cause that is the question. I can see the voltage drop ever so slightly as show in the image above, but 8.1mhz? I'm really frustrated, worst part is I already cut the UPC out for the motherboard rebate :'(
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post #4 of 5
Quote:
Originally Posted by chiznitz View Post

I've been through every settings configuration so many times.

I really have no idea why its throttling, maybe its the VRms, that throttle takes me to a 7x multiplier and only happens when when my socket temperatures approach 60C

My hwinfo64 is currently reading 8.1mhz as the minimum clock seen on all cores, what the.hell would cause that is the question. I can see the voltage drop ever so slightly as show in the image above, but 8.1mhz? I'm really frustrated, worst part is I already cut the UPC out for the motherboard rebate :'(

When I'm able, I'll try to upload some screens of my settings. I don't have the throttling issue, though I am on the FX Pro. There shouldn't be a large difference between the two other than the SB chipset and number of PCIe slots.
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post #5 of 5
It's most likely a misread probe as well. Occasionally when there are multiple programs probing the same data source at the same time they can return errant readings/results. If it's a one off read I wouldn't think much of it and not be concerned as I too get them with other things (HWInfo32, RivaTuner, RainMeter, etc). If it occurs for multiple concurrent reads then I would be concerned otherwise it's just a failure to read the probe at that moment and interpolating whatever it got (thus influencing your 'minimum reading').

I know Martin (the HW Author) had added a few checks regarding it for the ATI GFX card probes for example as it's a common issue overall with any program. The only difference between programs is how a bad read is interpreted (skipped, interpolated, etc). From my experience with HWInfo32 as well, when the system is being completely taxed to the point of causing a small bit of interferance with system functions (driver handling, etc) there can be delays in reading the probes as well which also causes the data to not only timeout but be misread. If anything try setting the HWInfo threads to realtime and see if it helps in your case while testing.

I myself am not unaccustomed to seeing the occasional fan speed misread in the league of 160k or -5k or something or some other oddball min/max during tests.

Edited by Chozo4 - 11/7/13 at 6:57pm
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