It's likely shutting down speeds to cover garbage collection duties and whatever the controller does in the background. Windows optimization/trim on, could you elaborate on that?Ģ40 Kingston SSD (the one I have trouble with) 120gb Integral SSD, Have tried different windows power modes also.

Really not too sure of the power settings in my bios, but they were exactly the same as when I have the good results. Also, garbage collection routines can cause differences in performance if it is active during one test run vs n windows optimize/trim on it, restart, let it idle for like a half hour, restart again and let it idle for 10 minutes before you test again and see what you get.Īlso, what’s your system specs, firmware, SATA driver version, etc? There is a possibility windows installed one of them between your runs too. Also, the latest meltdown and Spectre patches result in lower performance. Do you have power savings features enabled in your BIOS? Got windows power plan set to high performance? I usually find in balanced or low power mode and with BIOS power saving features enabled I get inconsistent scores when testing. Did this damage it?ĭrive isn’t damanged most likely. When I installed again I deleted 16mb partition and ha e to run the diskpart 'clean command on the drive to be able to reinstall again. Is it possible that I damaged my Mobo and other components too?Įdit: One more thing. I have clinical OCD and want to understand why this is happening. No firmware update, bios has been reset and Cmos'd. I assumed I damaged the Drive by turning it off and on so many times I had damaged it, but it seems unlikely. Also the second 4kib is highly temperamental, when it was even before.

I went to test disk mark again and my read speed are now always about 90-130 lower than they previously were, which is a LOT. I tested Crystal disk mark and was getting these speeds consistently (phone image, That wasn't the youtube score, I was comparing): This is one of the lower scores, it was more like 355 on the 4kīecause it wouldn't boot when removed the other SSD, and replaced with my HDD, I had to re-install windows again (and have done 4 times now) The 4kib read and write a ore are highly unstable, some times going to 150 and below and seem random. Windows decided to create the bootable portion on that drive. I received a Kingston drive and installed windows on it.

Crystal disk mark kingston a400