crucial mx500 TBW not accurate

Martin

HWiNFO Author
Staff member
This looks like the drive doesn't properly report information via ATA Statistics standard and truncates the number of reported sectors written.
Try to disable "ATA Statistics Support" in HWiNFO if you'll get correct numbers then.
 

ciukacz

Member
Martin said:
This looks like the drive doesn't properly report information via ATA Statistics standard and truncates the number of reported sectors written.
Try to disable "ATA Statistics Support" in HWiNFO if you'll get correct numbers then.
if i disable that both "total host writes" and "total host reads" disappear from sensors window.
why do you think the drive truncates the data when manufacturer's tool can read correct value (screenshots)?
 

Martin

HWiNFO Author
Staff member
The problem I described earlier is true, the difference is that HWiNFO relies primarily on ATA Statistics, which is a standard unlike SMART. And AFAIK all other tools rely on SMART.
I will add a workaround for this issue in the next Beta build.
 

ciukacz

Member
thank you for the explanation.
long shot: is it explained anywhere what is the difference between "smart support" and "ata statistics support" in hwinfo's behavior?
i assume ata statistics take precedence if a counter is supported by both APIs?
 

Martin

HWiNFO Author
Staff member
Yes, ATA Statistics values take precedence. This is because it's completely standardized, unlike SMART.
 

ciukacz

Member
Martin said:
Please try new version 5.89-3515 Beta if it reports correct numbers now.
yes, thank you kind sir, donated :)
minor nitpick: total host reads disappeared for these drives (but are still visible for nvme boot drive)
 

Martin

HWiNFO Author
Staff member
Thank you, also for the donation.
Try to activate ATA Statistics support again, that might show Total Host Reads.
 
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