Počasen SSD Crucial MX100 256GB

Zivijo,
PC (ASUS h81c-m, Najnovejši firmware na MB, g3258k, 16GB RAM, SSD Crucial MX100 256GB, Windows 64bit Enterprise, ) se je upočasnil in postal občasno neodziven. Prilagam teste iz AS-SSD CrystalDiskInfo. Predvsem random pisanje 4k je zelo počasno. Malwarebytes, Avast boot scan brez virusov in Malawara. Kaj bi lahko bil vzrok?

Za pomoč hvala v naprej!

AS SSD Benchmark 1.9.5986.35387
------------------------------
Name: Crucial_CT256MX100SSD1
Firmware: MU02
Controller: iaStorA
Offset: 359424 K - OK
Size: 238,47 GB
Date: 28.3.2017 7:50:21
------------------------------
Sequential:
------------------------------
Read: 478,09 MB/s
Write: 234,54 MB/s
------------------------------
4K:
------------------------------
Read: 4,44 MB/s
Write: 3,81 MB/s
------------------------------
4K-64Threads:
------------------------------
Read: 309,08 MB/s
Write: 46,74 MB/s
------------------------------
Access Times:
------------------------------
Read: 0,632 ms
Write: 0,967 ms
------------------------------
Score:
------------------------------
Read: 361
Write: 74
Total: 606
------------------------------



AS SSD Copy-Benchmark 1.9.5986.35387
------------------------------
Name: Crucial_CT256MX100SSD1
Firmware: MU02
Interface: iaStorA
Size: 238,47 GB
Date: 28.3.2017 7:54:00



----------------------------------------------------------------------------
CrystalDiskInfo 6.3.0 (C) 2008-2015 hiyohiyo
Crystal Dew World : http://crystalmark.info/
----------------------------------------------------------------------------

OS : Windows 8.1 Enterprise [6.3 Build 9600] (x64)
Date : 2017/03/28 15:14:42

-- Controller Map ----------------------------------------------------------
+ Intel(R) 8 Series/C220 Chipset Family SATA AHCI Controller [ATA]
- Crucial_CT256MX100SSD1
- HL-DT-ST DVDRAM GH22NS90
- Microsoft Storage Spaces Controller [SCSI]
- Microsoft VHD Loopback Controller [SCSI]

-- Disk List ---------------------------------------------------------------
(1) Crucial_CT256MX100SSD1 : 256,0 GB [0/0/0, pd1] - mi

----------------------------------------------------------------------------
(1) Crucial_CT256MX100SSD1
----------------------------------------------------------------------------
Model : Crucial_CT256MX100SSD1
Firmware : MU02
Serial Number : ************
Disk Size : 256,0 GB (8,4/137,4/256,0/256,0)
Buffer Size : Neznano
Queue Depth : 32
# of Sectors : 500118192
Rotation Rate : ---- (SSD)
Interface : Serial ATA
Major Version : ACS-2
Minor Version : ATA8-ACS version 6
Transfer Mode : SATA/600 | SATA/600
Power On Hours : 1699 ur
Power On Count : 117 zag.
Host Writes : 6450 GB
Wear Level Count : 89
Temperature : 29 C (84 F)
Health Status : Dobro (98 %)
Features : S.M.A.R.T., APM, 48bit LBA, NCQ, TRIM, DevSleep
APM Level : 00FEh [ON]
AAM Level : ----

-- S.M.A.R.T. --------------------------------------------------------------
ID Cur Wor Thr RawValues(6) Attribute Name
01 100 100 __0 000000000000 Raw Read Error Rate
05 100 100 __0 000000000000 Reallocated Sectors Count
09 100 100 __0 0000000006A3 Power-On Hours
0C 100 100 __0 000000000075 Power Cycle Count
AB 100 100 __0 000000000000 Program Fail Count
AC 100 100 __0 000000000000 Erase Fail Count
AD _98 _98 __0 000000000059 Average Block-Erase Count
AE 100 100 __0 00000000003D Unexpected Power Loss Count
B4 __0 __0 __0 00000000086F Unused Reserve NAND Blocks
B7 100 100 __0 000000000000 SATA Interface Downshift
B8 100 100 __0 000000000000 Error Correction Count
BB 100 100 __0 000000000000 Reported Uncorrectable Errors
C2 _71 _53 __0 002F0012001D Temperature
C4 100 100 __0 000000000000 Reallocation Event Count
C5 100 100 __0 000000000000 Current Pending Sector Count
C6 100 100 __0 000000000000 Smart Off-line Scan Uncorrectable Error Count
C7 100 100 __0 000000000000 Ultra DMA CRC Error Rate
CA _98 _98 __0 000000000002 Percent Lifetime Used
CE 100 100 __0 000000000000 Write Error Rate
D2 100 100 __0 000000000000 Successful RAIN Recovery Count
F6 100 100 __0 000326524216 Total Host Sector Writes
F7 100 100 __0 000019A8E32B Host Program Page Count
F8 100 100 __0 000040C25118 FTL Program Page Count

Firmware je M02, to je najnovejši. Backup je narejen. Kabel zamenjan. Restore backupa pri 4k pisanju 5MB/s bo trajal 11 ur...

Kaj pričakuješ od secure erase?
Kaj naj gledam pri SATA konfiguraciji v Biosu?

Hvala

AHCI je nastavljen. Disk je še v garanciji, vendar bi rabil potrjrno diagnozo, da je res disk in ne kaj drugega, recimo driverji, ali pa umirajoča matična plošča.

Good Health, newest Firmware installed, druge diagnostike razen SMART ne vidim

Disk testiral kot nesistemski disk v drugem računalniku in tam ni bilo tezav s pocasnimi 4K Random pisanji/branji.

Kje naj iscem, da najdem napako?

Clean Install Windowsov je odpravil napako, PC je spet odziven in hiter, hiter je tudi SSD MX100.