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Ryzen 7 1700 stuck at 1.5GHz on default settings

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ryzen_from_the_dead View Drop Down
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    Posted: 18 Sep 2017 at 4:58pm
Hi,

I recently built a new AMD Ryzen 7 1700 machine with the ASRock AB350M Pro4 MicroATX motherboard.
No matter what I do the clock multiplier is stuck at 15.5 (reported by CPU-Z) and the frequency is around 1546MHz. The processor under-performs in all benchmarks by a factor of 2-3 compared to other same configurations.
I'm using the Cooler Master Hyper 212 EVO as a CPU cooler and the temperatures stay always below 35°C, so I don't think it's related to thermal throttling.

I've tried almost all the combinations of:
  • Installing the motherboard drivers
  • Installing Ryzen drivers and enabling the Ryzen power state
  • Using the high performance power state
  • Enabling/disabling AMD quiet&cool
  • Enabling/disabling AMD C6 state
  • Using automatic CPU clock settings
  • Setting manual overclock of 3.0, 3.2 and 3.7GHz
  • Updating the bios to the latest version P3.10
  • Resetting the BIOS CMOS with jumper and removing the battery
  • Note: The CMOS reset works and clears the BIOS settings
  • Installing/uninstalling Ryzen Master
Nothing I have tried has got any progress and even after multiple resets the CPU is still stuck at around 1.5GHz. I don't even need to overclock the processor necessarily: I would be happy with the base of 3GHz for now!

While troubleshooting I found that many other people share this kind of issue, but only when overclocking. For me the problem persist even when I disable all overclocking related settings and use the UEFI defaults.

Relevant specs:
  • CPU: AMD Ryzen 7 1700
  • Motherboard: ASRock AB350M Pro4 MicroATX
  • PSU: EVGA SuperNOVA 750 G3
  • Operating System & Version: Windows 10 Pro
Thanks!
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wardog View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote wardog Quote  Post ReplyReply Direct Link To This Post Posted: 18 Sep 2017 at 5:16pm
http://forum.asrock.com/search_results_posts.asp?SearchID=20170918170937&KW=stuck+1%2E5
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ryzen_from_the_dead View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ryzen_from_the_dead Quote  Post ReplyReply Direct Link To This Post Posted: 18 Sep 2017 at 5:51pm
As I mentioned in the first post, I know other people had the same kind of problem when overclocking. I also have tried to apply the relevant troubleshooting steps described in the threads here with no use.
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datonyb View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote datonyb Quote  Post ReplyReply Direct Link To This Post Posted: 18 Sep 2017 at 11:00pm
right it seems listed problems and solutions are

thermal throttling (you should be ok)
buggy bios in relation to voltages and ryzen crapping itself

solution for you ?
try either bios version 3 or bios version 2.5

please remember to reset all bios back to stock/default first
and perform the flash in bios NOT windows
[url=https://valid.x86.fr/jpg250][/url]

3800X, powercolor reddevil vega64, gskill tridentz3866, taichix370, evga750watt gold
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ryzen_from_the_dead View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ryzen_from_the_dead Quote  Post ReplyReply Direct Link To This Post Posted: 19 Sep 2017 at 2:28am
I tried to downgrade the bios to 2.5 and same problem...

Next up: Reinstalling windows and then changing the motherboard!
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Xaltar View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Xaltar Quote  Post ReplyReply Direct Link To This Post Posted: 19 Sep 2017 at 2:52am
Check the CPU for bent pins, it looks like you have largely ruled out software/drivers/UEFI. It sounds to me like either the CPU isn't properly seated or there a is a bent pin (or more). Check carefully for any missing/bent pins, missing pins can be hard to spot. 

If the pins are fine then reseat the CPU and make sure it is properly secured. Also check for any thermal paste overflow that could be shorting components on the board/CPU (if the thermal paste is conductive or capacitive).

Let us know how it goes.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote datonyb Quote  Post ReplyReply Direct Link To This Post Posted: 19 Sep 2017 at 3:41am
could it be a dodgy temp sender on cpu or board

causing thermal throttle when theres no need ?
[url=https://valid.x86.fr/jpg250][/url]

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Xaltar Quote  Post ReplyReply Direct Link To This Post Posted: 19 Sep 2017 at 4:58am
It could be something like a loose VRM heatsink but 1500mhz is very specific. Thermal throttling wouldn't likely be stuck to a set frequency unless the sensor was stuck at a specific value (possible I guess). My money is on either bent pin/s, thermal compound spill or a faulty socket. 

On most (all?) CPUs you can usually pin mod to change a wide variety of things ranging from voltage, dual channel memory (force single channel) to BCLK and multiplier. A bent pin or otherwise poor connection could easily account for a fixed 15x multiplier. 

It is definitely worth checking the VRM heatsinks to make sure they are properly fitted and making proper contact with the VRMs. I don't think that is the cause but worth checking none the less. 
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datonyb View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote datonyb Quote  Post ReplyReply Direct Link To This Post Posted: 19 Sep 2017 at 7:09am
im guessing here as much as anyone

because its a strange fault

but the internet has one option for this stuck speed being thermal throttle

it seems this 1550mhz is ryzens 'pullback' speed hence why i suggested it might be something to do with this mate
[url=https://valid.x86.fr/jpg250][/url]

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Post Options Post Options   Thanks (0) Thanks(0)   Quote ryzen_from_the_dead Quote  Post ReplyReply Direct Link To This Post Posted: 20 Sep 2017 at 3:22am
Thanks everyone for the help!

I haven't been online since I tore down the computer to try to fix it. I grabbed the fastest to get Micro-ATX AM4 motherboard I could find (ASUS PRIME B350M-A) and switched to that. There was also a tiny bit of thermal paste spillage potentially reaching one pin, but I guess it's more likely that the ASRock motherboard was faulty.

Anyway after getting the build running again it reached 3.0GHz and the benchmarks match the baseline!

CPU-Z benchmark at reference
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