The Unknown_Attributes in your SMART report make it a little difficult to understand.
Here are your SMART data:
Code:
Device Model: TOSHIBA THNSFC128GBSJ
Serial Number: 828S105NTH2Z
Firmware Version: CJFA0203
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x000a 099 099 000 Old_age Always - 0
2 Throughput_Performance 0x0005 100 100 050 Pre-fail Offline - 0
3 Spin_Up_Time 0x0007 100 100 050 Pre-fail Always - 0
5 Reallocated_Sector_Ct 0x0013 100 100 050 Pre-fail Always - 0
7 Unknown_SSD_Attribute 0x000b 100 100 050 Pre-fail Always - 0
8 Unknown_SSD_Attribute 0x0005 100 100 050 Pre-fail Offline - 0
9 Power_On_Hours 0x0012 100 100 000 Old_age Always - 4741
10 Unknown_SSD_Attribute 0x0013 100 100 050 Pre-fail Always - 0
12 Power_Cycle_Count 0x0012 100 100 000 Old_age Always - 1323
167 Unknown_Attribute 0x0022 100 100 000 Old_age Always - 0
168 Unknown_Attribute 0x0012 100 100 000 Old_age Always - 10760
169 Unknown_Attribute 0x0013 100 100 010 Pre-fail Always - 631455221034
170 Unknown_Attribute 0x0013 100 100 010 Pre-fail Always - 111685664850
173 Unknown_Attribute 0x0012 187 187 000 Old_age Always - 0
175 Program_Fail_Count_Chip 0x0013 100 100 010 Pre-fail Always - 0
192 Power-Off_Retract_Count 0x0012 100 100 000 Old_age Always - 73
194 Temperature_Celsius 0x0023 059 036 030 Pre-fail Always - 41 (Min/Max 14/64)
197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always - 0
240 Unknown_SSD_Attribute 0x0013 100 100 050 Pre-fail Always - 0
ATA Error Count: 10590Here is another example that I found via Google:
http://nerdanswer.com/answer.php?q=291408Code:
Device Model: TOSHIBA THNSFC128GBSJ
Serial Number: 41GY2019Y15K
Firmware Version: CJFA0203
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x000a 099 099 000 Old_age Always - 0
2 Throughput_Performance 0x0005 100 100 050 Pre-fail Offline - 0
3 Spin_Up_Time 0x0007 100 100 050 Pre-fail Always - 0
5 Reallocated_Sector_Ct 0x0013 100 100 050 Pre-fail Always - 0
7 Seek_Error_Rate 0x000b 100 100 050 Pre-fail Always - 0
8 Seek_Time_Performance 0x0005 100 100 050 Pre-fail Offline - 0
9 Power_On_Hours 0x0012 100 100 000 Old_age Always - 8473
10 Spin_Retry_Count 0x0013 100 100 050 Pre-fail Always - 0
12 Power_Cycle_Count 0x0012 100 100 000 Old_age Always - 463
167 Unknown_Attribute 0x0022 100 100 000 Old_age Always - 0
168 Unknown_Attribute 0x0012 100 100 000 Old_age Always - 0
169 Unknown_Attribute 0x0013 100 100 010 Pre-fail Always - 455361561898
170 Unknown_Attribute 0x0013 100 100 010 Pre-fail Always - 51556122706
173 Unknown_Attribute 0x0012 187 187 000 Old_age Always - 0
175 Program_Fail_Count_Chip 0x0013 100 100 010 Pre-fail Always - 0
192 Power-Off_Retract_Count 0x0012 100 100 000 Old_age Always - 21
194 Temperature_Celsius 0x0023 056 045 030 Pre-fail Always - 44 (Min/Max 11/55)
197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always - 0
240 Head_Flying_Hours 0x0013 100 100 050 Pre-fail Always - 0
ATA Error Count: 1Attribute 173 is identical for both drives, so this would suggest that it may be normal.
The raw data for attribute 169 appears to be a multiword value. Only the first word differs.
631 455 221 034 = 0x0093 05AA 052A
455 361 561 898 = 0x006A 05AA 052A
Likewise, the raw data for attribute 170 appears to be a multiword value. Once again only the first word differs.
111 685 664 850 = 0x001A 00FC 0052
51 556 122 706 = 0x000C 00FC 0052
I don't know what these numbers mean, but my intuitive feeling is that they are OK. The differences that stand out are in attribute 168 and the ATA Error Count.
Your drive has a raw value of 10760 for attribute 168 and an error count of 10590 whereas the other SSD has only a single ATA error. This would suggest that the errors are real. The similarity in the numbers (10760 vs 10590) makes me wonder whether they are related. Some SSDs define attribute 168 as "
SATA PHY Error Count", so perhaps this is consistent with your observation regarding the SATA connector.
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