Product Type: ACER Aspire 3 A315-24P-R6W9
Operating System: Windows 11
Issue Description:
I am writing to inquire about a discrepancy between the calculated endurance wear and the SMART (Self-Monitoring, Analysis, and Reporting Technology) reported usage percentage for the internal OEM Solid State Drive (SSD) in my Acer system.
While the drive is functioning perfectly, I am seeking clarification on which metric Acer uses as the authoritative source for health assessment and potential warranty purposes.
Sandisk ® Global Customer Care redirected me here, saying:
"Sandisk ® Global Customer Care does not provide technical support for OEM (Original Equipment Manufacturer) products.Please refer to the OEM manufacturer or the OEM product place of purchase for further advice on how to gather and interpret diagnostics/health. "
SSD Information:
- Model Number: WD PC SN735 SDBPNHH-512G-1114
- Firmware Version: 70659000
Observed Wear Metrics:
- Official Endurance Rating (Manufacturer Specification): 300 TBW
- Total Bytes Written (TBW) (SMART Data): 23.4 TB
- Calculated Wear Percentage ((23.4 / 300) * 100): ≈7.8%
- SMART Reported Percentage Used (Internal Drive Firmware): 4%
- Available Spare (SMART Data): 100%
- Available Spare Threshold (SMART Data): 10%
Query:
As shown above, the straight calculation based on the official endurance rating suggests 7.8% of the drive life has been consumed, but the internal drive firmware reports the Percentage Used as only 4%.
I understand that this discrepancy is likely due to the SSD's advanced wear-leveling algorithms and over-provisioning efficiency. Could you please confirm:
- Which metric—the SMART Percentage Used (4%) or the Calculated Wear (7.8%)—should be considered the primary indicator of the drive's health when assessing warranty or remaining lifespan?
- Does the SSD's internal reporting of 4% accurately reflect the drive's health status, or should I be concerned that the calculated 7.8% is the true reflection of usage?
Thank you for your time and assistance in clarifying these technical details.
[Edited the thread to add model number to the title]
