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The hardest stutter to troubleshoot
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mpw90 View Drop Down
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Points: 60 		Post Options Post Options   Thanks (0) Thanks(0)   Quote mpw90 Quote  Post ReplyReply Direct Link To This Post Posted: 05 Sep 2018 at 5:47am
Okay, as much as it pains me to say, I don't think it's the ASRock AB350m Pro4. Though, thankfully it's not. After 4 RMA's!

I tried the Gigabyte AB350M-DS3H and the stutters were still occurring. 

New motherboard frametime spikes 1 - https://i.imgur.com/WLzCW2z.png
New motherboard frametime spieks 2 - https://i.imgur.com/1zkMAHI.png

So, I am beginning to think this *is* the CPU.

So, I am at a loss still.. This CPU was manufactured in Malysia week 42 of 2017. 

If indeed this is an AMD issue, I would actually be kind of furious. This has been 6 months of struggling to find the cause. Whilst I would be relieved to discover it is indeed the cause (what else can it be at this point), it would be my second CPU, 4th motherboard, 3rd lot of RAM, 2nd GPU, 2nd SSD, and 4 or 5 installation of Windows, and maybe 3rd installation of Linux. 

Not to mention all the time consumed updating drivers, BIOS, disabling services, plugging and unplugging cables, and using the screw driver, and thermal paste, etc.
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mpw90 View Drop Down
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As per this thread: https://forums.evga.com/The-hardest-stutter-to-troubleshoot-m2850576-p2.aspx#2852897 ; -- I have attempted to run the kill ryzen script to detect hardware faults. I do not know if there are false positives with this, but I do get the error.



C:\Users\mpw90\Desktop\Stutter Solving\kill-ryzen-win-master>bin\x64\Release\kill-ryzen-win || exit /b

bzip2.c

bzip2.c

bzip2.c

bzip2.c

bzip2.c

bzip2.c

bzip2.c

bzip2.c

bzip2.c

bzip2.c

bzip2.c

bzip2.c

bzip2.c

bzip2.c

bzip2.c

bzip2.c

bzip2.c

bzip2.c

bzip2.c

bzip2.c

bzip2.c

bzip2.c

bzip2.c

bzip2.c

Unhandled Exception: System.AggregateException: One or more errors occurred. ---> System.Exception: FAIL

at kill_ryzen_win.Program.<>c__DisplayClass0_0.<Main>b__0(Int32 x) in C:\Users\mpw90\Desktop\Stutter Solving\kill-ryzen-win-master\Program.cs:line 43

at System.Threading.Tasks.Parallel.<>c__DisplayClass17_0`1.<ForWorker>b__1()

at System.Threading.Tasks.Task.InnerInvokeWithArg(Task childTask)

at System.Threading.Tasks.Task.<>c__DisplayClass176_0.<ExecuteSelfReplicating>b__0(Object )

--- End of inner exception stack trace ---

at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)

at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)

at System.Threading.Tasks.Parallel.ForWorker[TLocal](Int32 fromInclusive, Int32 toExclusive, ParallelOptions parallelOptions, Action`1 body, Action`2 bodyWithState, Func`4 bodyWithLocal, Func`1 localInit, Action`1 localFinally)

at System.Threading.Tasks.Parallel.For(Int32 fromInclusive, Int32 toExclusive, Action`1 body)

at kill_ryzen_win.Program.Main(String[] args) in C:\Users\mpw90\Desktop\Stutter Solving\kill-ryzen-win-master\Program.cs:line 51
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mpw90 View Drop Down
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As can be seen here: https://i.imgur.com/G3QbAsq.png -- the spikes are still happening, but to a lesser degree. This is after a new SSD and new RAM.
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mpw90 View Drop Down
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Changed RAM, changed SSD. Same motherboard. Far more stable, less stuttering, but it still exists. I cloned the SSD (so, it's not entirely foolproof plan).

I plan to next test the motherboard. If it is not the motherboard, then it is either the PSU or the CPU.
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UPDATE

I secured the GPU in PCIe Gen 2 slot x16. Not the main PCIe Gen 3 slot. I loaded CS:GO and at splash screen, I noticed an increase of 120 fps (yes, I am not joking, what the hell?) I was hitting around 550-580 fps, when usually it is the low 400s. Even when I loaded the game, it reduced, but significantly higher in FPS.


YET, the stutters occured, and then I had a huge sequence of them and the system hard locked. This is exactly the same symptom I had with this board previously but with the PCIe Gen 3 slot. Previously, the Gen 2 slot was the only slot that would work.


Now, I am pretty convinced it is still the board. I have seen so many other horror stories about this board, and this is my 4th board after 3 RMA's in 6 months. Even after them asking me to change CPU (which I did), changing my GPU 3 times (1 time due to EVGA confirming a fault, and another testing an AMD GPU), and trying single sticks of RAM, etc.


Is it best to use Occam's Razor here and return this board for a final time, and change manufacturer? There is a chance it is the CPU. 
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mpw90 View Drop Down
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Originally posted by datonyb datonyb wrote:

well ever since dinosaurs roamed the earth ,and i started out with pc's

mis-matched ram has always caused some form of issue...............

id suggest going forward

get a matched pair of ram ,run the ram calculator and report back

Here is a screenshot of the spikes (bottom graph, frametime ms). Every time there is a spike, the frametime shoots up. Please note: this happens with or without the monitoring software. Also when it is not installed.


https://i.imgur.com/nkuvFy7.png 



Edited by mpw90 - 30 Aug 2018 at 5:49am
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mpw90 View Drop Down
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Originally posted by datonyb datonyb wrote:

well ever since dinosaurs roamed the earth ,and i started out with pc's

mis-matched ram has always caused some form of issue...............

id suggest going forward

get a matched pair of ram ,run the ram calculator and report back

I just pulled one stick of RAM and it still did it, though. So I don't really know if it is RAM that will be the problem here (as in unmatched pair).
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datonyb View Drop Down
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Points: 3139 		Post Options Post Options   Thanks (0) Thanks(0)   Quote datonyb Quote  Post ReplyReply Direct Link To This Post Posted: 30 Aug 2018 at 12:36am
well ever since dinosaurs roamed the earth ,and i started out with pc's

mis-matched ram has always caused some form of issue...............

id suggest going forward

get a matched pair of ram ,run the ram calculator and report back
[url=https://valid.x86.fr/jpg250][/url]

3800X, powercolor reddevil vega64, gskill tridentz3866, taichix370, evga750watt gold
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mpw90 View Drop Down
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Amazon have been great. They've just agreed to a return, so I will try some new memory. I will of course try this first.
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Originally posted by datonyb datonyb wrote:

heres the calc. and a video instruction how to use it and to run thiaphoon first


Interesting! I believed I had a matched pair but apparently not. Two different die manufacturers. I suspect something odd has gone on at Amazon. Should I return this memory?

Either way, I'd like to note that this problem existed before I had two sticks. I initially had a spare stick from a friend, that was a 3000Mhz Vengeance LPX -- I liked it (as much as you can like RAM) so I bought a 'matched pair', but obviously the prices shot up.

Should I proceed?
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