Spikes of 100% disk usage, 0 read/write speed on a new SSD and clean Windows 10 installation

H

Hufsahh

This problem is apparently very common, but no solution I've found over the past several days has worked.


This past week I put together a new PC and installed Windows 10 on a Kingston A400 SSD. During normal use, I found that the disk usage reported in Task manager (seemingly) randomly increased to 100%, stayed there for 5-50 seconds, then dropped down to 0-1% again. This causes any process running to freeze completely, only to be continued when the disk usage goes down.


The obvious next step: What process is using the disk? None. No process, neither in Task manager nor Resource monitor, is using the disk to anywhere near its full capacity during these spikes. Also, read/write speeds are reported as 0 MB/s during the spikes, see image below.

The next obivous step: Find a solution on google. Haven't had any luck here, and I've found a lot of solutions. Disabling Superfetch (which does not exist on my system?), prefetch, Windows search, file indexing on the drive, Message Signaled Interrupt (MSI) mode (supposedly not relevant since my disk doesn't use the StorAHCI.sys driver), etc. There are a lot of solutions on the internet. I've probably tried all of them at this point. Please hit me up with one I haven't tried yet, if you know of one.


Other relevant info: There are no events in the system event log that appear to be at all relevant. No disk controller reset events or anything. I've tried updating and rolling back drivers, uninstalling programs, re-installing Windows. The SSD has got no firmware update available.

Currently the system has a completely clean installation of Windows (through a bootable USB), with no third-party drivers installed. Not even the motherboard's LAN driver is installed, so I'm sure Windows hasn't sneakily installed any drivers from the internet. The problem still exists. There's probably more I should mention, but it's getting hard to keep track of everything I've tried.

System info:

ASUS Prime Z390-a mobo

i5 9600K (not OC'd)

ASUS Dual GTX 1070 (in case that would be at all relevant)

Kingston A400 480 GB SSD


At this point I just want it to be a hardware issue, so I can send it back and get a new one, that works.


I would be extremely grateful for any sort of guidance, thanks

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EDIT:

More relevant info: the disk is healthy according to Windows disk error checking and Kingston's own software. System memory is also healthy according to Window's Memory diagnostic.

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