Disk usage hitting 100% for the duration of steam downloads - causing issues

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Jul 16, 2018
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Hey all,

Been having this issue for the last 7-8 months, where almost any time I download anything off steam, my disk usage will immediately hit 100% and sit there for the entire download. While this is happening, my game download itself starts going in bursts (downloading in tiny chunks) - this ends up leading me to having to verify the game files after every install, to reinstall missing files that were lost during the download. Also, while this is happening, my PC will have quick lock-ups that only seem to last a few seconds, but lock-ups none-the-less. I should add that this issue seemed to come out of nowhere, some time around the creators update (I believe that was the big update that happened around the same time as these issues starting to pop up). Before that I could download whatever, with zero issues. Large or small games, didn't matter, zero issues. Now, I'm lucky if any games will download smoothly.

I've been searching for solutions to this since it began, nearly every google link is now purple whenever I try to switch up my search criteria, so I'm totally lost...thus now I'm making my own thread in hopes of solving this issue, and hopefully helping anyone else who has been stuck with this issue (I've found countless threads on steam with the exact same issues, but unfortunately all of them have no responses, or solutions).

I've tried everything I can seem to find - Swapping SATA cables/ports, Checking SSD health (both show zero problems upon testing), changing power options, disabling fast boot, checking the AHCI driver, updating all drivers for the mobo along with making sure the BIOS is up-to-date, etc... I even upgraded my old setup (i5 4690k/ASUS Z97-a) to my current build, thinking I potentially had a MOBO on it's way out...which doesn't seem to be the issue, but at least I've moved my build on to more current hardware, so I guess that's a bit of silver lining to my issue. I've also done about 5 or 6 fresh windows installs within the last 2 months while trying to solve this.

PC specs:
Win10 Home 64bit
Mobo - MSI z270 SLI
CPU - i7 7700k
GPU - EVGA 1070 FTW
RAM - Hyperx 16gb (single stick)
Samsung 860 evo SSD (500gb) - C drive
Samsung 850 evo SSD (500gb) - D drive

A couple observations I've made while trying to solve this:
-Seems to be only steam causing the issue, downloads using other clients are fine (origin/uplay/oculus). Can't confirm it's 100% a steam issue, which is what I'm hoping we may be able to uncover.
-When downloading, and the disk usage spikes to 100%, the network monitor in the task manager shows network usage as "spikes" (picture below)
-Disk transfer rate is also in "spikes" during this as well (not sure if this is totally normal, or abnormal behavior for both disk and network showing as spikes)
-As the spikes are happening, both network and disk will drop to zero kbps/mbs respectively and then jump back up, then back to zero. Again, not sure if this is normal behavior, or an issue (pictured below).

My network speeds are fine - 300/down 30/up, and I've disabled AV, added permissions, etc. with no luck.

In the task manager during the 100% usage spikes, Steam and "system" are at the top - usually steam is using the most resources, however it's only using 15-40 MB/s, and sometimes dropping to less than 1 MB/s. I feel like this is way far off from being too much for these SSD's to handle...maybe I'm wrong though?

Ultimately, I'm left banging my head against the wall at this point trying to find the culprit of this 100% disk usage issue. Is it hardware? Is my MOBO faulty? (Bought/installed MOBO about 3-4 months ago). Are both of my SSD's actually faulty? Is there an issue with steam?

Apologies for the lengthy post, after reading so many threads of potential fixes, I've tried to include as much info as I can remember to add in to help anyone with potential answers have a better understanding of my issue and system. Thank you to anyone who attempts to help me solve this conundrum, I appreciate it!

I should also note, both of these screenshots were taken while trying to install a game on steam earlier today.

7WQSOnn.jpg

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Solution


Oh awesome! I'll check through that thread and see if I can get the secure erase working to further test the 850.

I didn't monitor the resource monitor (I'll have it open the next time and keep an eye on it), however I think I may be on to something.

Seems to be that if I run the...
Jul 16, 2018
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Both drives seem to have the same issue unfortunately.

 
Any time the size of your download exceeds the SSD's cache size, downloads will 'slow down' as it actually requires some time to write large files or numerous small ones...

Most SSD 'advertising number' sequential write speeds are only for donwloads that happen to meet the cache size requirement....; speeds fall off quickly after that. and, quite possibly your drive is simply slower at sustained writes than download speeds...

In short...your SSD is busy :)
 
Jul 16, 2018
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lol no worries. It's set for 25 mb/s currently. I've tried both ways and still the same issue. Although I haven't run through all of them to see if there's a certain speed that seems to do weird stuff. I'll give that a shot, and just see what happens.

As for ram, system shows 16gb total, and says 13.3gb currently available in task manager.
 
Jul 16, 2018
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This makes sense, but I'm wondering why this is happening now with my pc, whereas 2 years ago I could download the same game, or a games of similar file sizes with no issues. I initially thought it was the SSD (the 850 evo that I have) failing, so I bought the 860 evo about 2 months ago just to see if that was the issue, but it didn't seem to fix it. The 850 evo I've had in this pc since I first built it in 2016 with the old mobo/cpu/ram, and I now have it as my secondary drive.

Sadly, this is definitely is an issue that wasn't always present, and can't be a normal thing. My entire system locks up during this as well for a few seconds at a time, and will become unresponsive. I've also tested downloading the same games on an old dual-booted imac (2013 version) with a mechanical drive, and it gives zero issues, along with disk usage remaining below 40% for the duration of the download.

Just started another download and overlayed the task manger while it was going, unsure if this will be of any help or not at showing what's happening
cY8GwzV.png



 
Jul 16, 2018
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Both drives show as the latest firmware and in good condition on magician, seem to be good with crystaldisk as well. I should note that I just reformatted my D drive earlier today in hopes a fresh format may somehow be the elusive fix, but no dice.
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Z50IACX.png

 
I see the screenshots of your drives’ current status and specs, but did you run the benchmarks? Windows is reporting 100% activity at 100MB/sec., or about 1/5 of your drive’s capability. I’m wondering if, when you swapped the new 960 in for your system drive, what method you used. Maybe the C: drive is not aligned properly. Wouldn’t hurt to check the D: drive either.

https://www.disk-partition.com/windows-10/ssd-alignment-windows-10-3889.amp.html
 
Jul 16, 2018
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Appreciate the info, I've set aside 40gb on both drives (although now I have a new issue of a disappearing D: drive, screenshots below)



Went ahead and checked benchmarks on both drives, C: drive completed showing this:
edqGjdh.png

and upon benchmarking my D: drive, it failed at 82%, along with my D: drive disconnecting from the system. If I power off, and reseat the plug and boot up again it shows up again, but seems to disconnect when utilizing it. I should note as well, that I just put the D: drive (850 evo) back in my machine yesterday (I contacted Samsung about a month ago about a potential RMA - still have the option to RMA if needed, but Samsung recommended trying to test other options first before sending it in for warranty)

fYVMsOD.png

TzphO2P.png


Also checked ssd alignment and that seems to be good as well. Here's a screenshot to further verify:
Tp4rVVW.png


With the D: drive disconnecting, could that indicate a MOBO issue with the SATA controller or something? I've tried swapping cables and ports both, and it doesn't seem to make any sort of change.

Appreciate all the help so far!

 
OK, very thorough! Hmm, yeah just try the D: drive in another SATA port to see if the problem follows. If it works ok in the next port, then the other port might very well be damaged (and only that port). I don't believe you'll have a problem moving it to another port as far as drive letter and Windows functionality since it is not the boot drive with the OS on it.
 
Jul 16, 2018
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Just swapped out the D: drive SATA cable along with moving it to ports 5 and 6 (have previously tried 2 through 4). PC booted, showing the D: drive as being connected, then when running the magician benchmark again, the drive disconnected from both SATA ports and is no longer showing as a connected drive. If I unplug-replug the drive back in (with pc off) and reboot, the drive will appear again until trying to benchmark or downloading a game to it.

As for the 860 write speed, could that indicate a faulty SSD, or could that potentially be a mobo issue? Or both?

I'm assuming that since I can't successfully complete a benchmark on magician with the 850, I might as well send that one in for RMA. New cables and ports don't seem to have any difference, so all I can think is at least my 850 is faulty/failing.

Thank you for your help thus far.

Quick update. Just ran the benchmark again on my 860 and the read/write speeds are now showing 559/528
Axihkx5.png


I'll reboot and run the benchmark again to see if it stays consistent.

Update 2: Ran the magician benchmark twice since the last update. First pass showed similar results to the picture above, second pass gave these results:
k1iqBTe.png



 
Jul 16, 2018
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Sure thing, will give that a try now and will attempt another benchmark.

update
Tried to run secure erase on the D: drive, but hit an error after booting off the bootable disk.

"The selected device is in a frozen state" then gives steps to try and remedy with unplugging/replugging the drive back in, but unfortunately it wouldn't go beyond this point.
 
This is a tough one because you’re getting bad, yet different results on the two drives. Obviously the 850 is worse, but the 860 has an intermittent problem. I would not rule out your mobo as the problem because the two drives are affected even if in their own way, but you need to test them on another mobo if you can, so you are able to find out for sure.

Also, I thought maybe you could use Resource Monitor in task manager’s Performance tab to monitor the process(es) floating to the top of the CPU usage column the moment you see the drive slow down, as well as the process(es) floating up in the Disk write column (don't forget to click these columns to sort them in descending order). Both are in the Overview tab of the Resource Monitor. I suggest you download HDTune because during a test it plots speed vs time graphically. Get the free trial of the Pro version, because the free version only does read tests and your problem seems to be with writes. https://www.hdtune.com/download.html

This might help, too. See Reply #4 in this thread. Although it is for an M.2 drive, maybe your problem can be fixed with a BIOS setting.

https://forum-en.msi.com/index.php?topic=279572.0

EDIT: WAIT, the boot drive doesn't work now? :-(
 
Jul 16, 2018
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Boot drive is fine thankfully! Well, as good as it can be right now, haha. D: drive isn't happy about attempting a secure erase, and just seems to be dead at this point. Should have clarified when I said bootable disk, meaning the bootable thumb drive that magician creates during the secure erase process. 100% going to just RMA the 850 (D: drive) though. The C: drive is still operating, but still has the fluctuations in write speeds, same as before. I'll try out the stuff you listed and report back! Thanks!

update:
Disabled XMP, ran 2 more magician benchmarks. First resulted in normal speeds, second test - write speed tanked to 50.

I'll download HDTune shortly, and see what that reveals.

 
OK, don't forget to watch the Resource Monitor during the HDTune test. You want to observe processes and if HDTune is using up all the SSD's bandwidth (it should) or whether something else is stepping on its toes.

BTW, "frozen state" error is not unusual when attempting Secure Erase and looks like it is supposed to happen that way for security. See this thread here: http://www.tomshardware.com/answers/id-2310591/ssd-frozen-state-repair.html
 
Jul 16, 2018
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Oh awesome! I'll check through that thread and see if I can get the secure erase working to further test the 850.

I didn't monitor the resource monitor (I'll have it open the next time and keep an eye on it), however I think I may be on to something.

Seems to be that if I run the magician benchmark immediately after a restart, I get the speeds I'm supposed to be getting. Then by the time that benchmark is done, if I run a second benchmark, the write speed tanks, almost as if something software related is causing issues - or at least that's how it seems to me (with my very limited knowledge lol).

I do have some screenshots of hdtune's disk monitor while running the magician benchmark for reference, hopefully that might shine some light on something?

First test after restart:
aKYGknN.png

osZvs53.png


second test after restart:
yJX8sEq.png

75ST3Pi.png


As for HDTune itself, I'll run that right now and see what happens!

 
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