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- Re: [solved ] incorrect 'power on' hours value on ...
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02-18-2014 12:42 AM
Hi there,
For a long time already, I've been noticing Intel SSD X25-M 120 GB (and possibly also 320) has got incorrect 'power on' count hours in S.M.A.R.T. report. I'm running my Montevina based ThinkPads (one X25-M, the second with 320) for many hours each day, yet the count kept suspiciously low.
The other day I had spare time and run following experiment:
-took a note about power on count at morning and let my machine run for all day and night long (no sleep/hibernation mode)
-took a note again next morningI've done this twice and records are following:
-first morning: 1144 hours
-second morning: 1144 hours-third morning: 1145 hours(see attached screenshots)
Obviously 1 of its "hour" is longer than regular day.
reporting tools: SSD Toolbox and CrystalDisk Info
According to your information (see https://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&DwnldID=18455 https://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&DwnldID=18455 ), my drive has got latest firmware.
Thank you,
KarelSolved! Go to Solution.
1 ACCEPTED SOLUTION
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02-20-2014 11:54 AM
Thank you for posting.
DIPM is indeed related to Power-On Hours Count:
"The raw value reports the cumulative number of power-on hours over the life of the device.
The On/Off status of the Device Initiated Power Management (DIPM) feature will affect the number of hours reported.
- If DIPM is turned on, the recorded value for power-on hours does not include the time that the device is in a "slumber" state.
- If DIPM is turned off, the recorded value for power-on hours should match the clock time, as all three device states are counted: active, idle and slumber."
7 REPLIES 7
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02-28-2014 10:44 AM
Thank you for the feedback and detailed step by step guide.
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03-01-2014 10:48 AM
What is Intel's advice regarding enabling/disabling DIPM on a laptop computer?
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03-02-2014 07:45 PM
Hi mutex7,
I can't speak for Intel, but from Intel's document 325152 State Drive 320 Series, Product Specification, March 2011 the drive's idle power consumption Idle: 100 mW (TYP) is mentioned explicitly with DIMP enabled.
In Windows it seems (see my comment above) that by default mobile platforms has got DIMP enabled as opposed to disabled on desktop platforms and that this is levered by Microsoft, not by Intel (certainly, the drive must be DIMP capable though).
Cheers,
k.
