HDD sentinel question

Devon68 · Jun 10, 2015

I was looking at a used laptop and always like to view the software captured specs. While looking at the specs of the laptop I saw something strange. The HDD seems to bee used for 39 days and 8 hours, and the start stop count seems to show 1259. So in theory he turned the lap top on/off about 1259 times/~40days=32 times a day. Does that make any sense?Can that be a real number of is this a photoshoped image?

Could this be possible

Solaris17 · Jun 10, 2015

the issue is your thinking in literal terms. The program adds 24 hours and thats how it counts days. The actual "day" a user might use the system averages different but you could assume 8-16 hours a day. which then makes more sense.

if you do 24*39+8=944 hours.

If we assume he used the machine in 8 hour periods we get

944/8

we get 118 usage periods.

if we assume the drive counts power on and power off we do

118*2=236 physical power cycles.

The real question is does the HDD count sleep mode as a start stop? or does it count head parking as start/stop? that can skew the number.

It is also possible the drive simply didnt record the data correctly to begin with.

AsRock · Jun 10, 2015

Solaris17 said:
the issue is your thinking in literal terms. The program adds 24 hours and thats how it counts days. The actual "day" a user might use the system averages different but you could assume 8-16 hours a day. which then makes more sense.

if you do 24*39+8=944 hours.

If we assume he used the machine in 8 hour periods we get

944/8

we get 118 usage periods.

if we assume the drive counts power on and power off we do

118*2=236 physical power cycles.

The real question is does the HDD count sleep mode as a start stop? or does it count head parking as start/stop? that can skew the number.

It is also possible the drive simply didnt record the data correctly to begin with.

I believe they do count from my own testing and it's not HDD Sentinel to blame as it just reads from SMART. All so sounds like windows is told to turn it off pretty dam often too.

Mines over 13K but has a hell loads more hours but it's rarely used so when it does power off it's not back on for a good while as my apps and games are on my SSD's.

Check under the smart tab that will show you the each value.

newtekie1 · Jun 10, 2015

Yep, sleep is a power in cycle. So on a laptop that goes to sleep often these numbers are totally plausible.

System Name	AMD Black Widow
Processor	AMD FX-6100 3.3GHz
Motherboard	GIGABYTE GA-780T-D3L (rev. 4.0)
Cooling	Cooler master hyper 212 EVO
Memory	Kingston HyperX DDR3 2x4GB 1600MHz KHX1600C9D3B1K2/8GX
Video Card(s)	Sapphire HD 7770 GHz Edition
Storage	WESTERN DIGITAL 1TB 64MB 7k SATA600 Blue WD10EZEX, Samsung 850 EVO 256 GB SSD
Display(s)	LG W2453SQ-PF
Case	MS Cyclops IV
Power Supply	LC Power LC600H-12 600 W
Software	Windows 10 64bit

System Name	Venslar
Processor	I9 7980XE
Motherboard	MSI x299 Tomahawk Arctic
Cooling	EK Custom
Memory	32GB Corsair DDR4 3000mhz
Video Card(s)	Nvidia Titan RTX
Storage	1x 250GB 960 EVO \| 1x 500gb Intel 720p \| 32TB SAN
Display(s)	3x AOC Q2577PWQ (2k IPS)
Case	Inwin 303 White (Thermaltake Ring 120mm Purple accent)
Audio Device(s)	Schiit Fulla 3 on Beyerdynamic DT 990 Pros
Power Supply	Seasonic 1050W Snow
Mouse	Roccat Kone Aimo White
Keyboard	Ducky Shine 6 Snow White
Software	Windows 10 x64 Pro

Processor	2500k \ AMD 3900X+NH-D15
Motherboard	ASRock Z68 \ ASRock AM4 X570 Pro 4
Memory	Samsung low profile 2x8GB \ Patriot 2x16GB PVS432G320C6K
Video Card(s)	eVga GTX1060 SSC \ XFX R9 390X
Storage	2xIntel 80Gb (SATA2) Crucial MX500 \ Samsung 860 1TB +Samsung Evo 250GB+500GB Sabrent 1TB Rocket
Display(s)	Samsung 1080P \ Toshiba HDTV 1080P
Case	HTPC400 \ Thermaltake Armor case ( VE2000BWS ), With Zalman fan controller ( wattage usage ).
Audio Device(s)	Yamaha RX-A820 \ Yamaha CX-830+Yamaha MX-630 Infinity RS4000, Blue Yeti
Power Supply	PC&Power 750w \ Seasonic 750w MKII
Mouse	Steelseries Sensei wireless \ Steelseries Sensei wireless
Keyboard	Logitech K120 \ ROCCAT MK Pro ( modded amber leds )
Benchmark Scores	Meh benchmarks.

Processor	Intel Core i7 10850K@5.2GHz
Motherboard	AsRock Z470 Taichi
Cooling	Corsair H115i Pro w/ Noctua NF-A14 Fans
Memory	32GB DDR4-3600
Video Card(s)	ASUS Strix GTX 1080Ti
Storage	500GB SX8200 Pro + 8TB with 1TB SSD Cache
Display(s)	QNIX QX2710 1440p@120Hz
Case	Fractal Design Define S
Audio Device(s)	Onboard is good enough for me
Power Supply	eVGA SuperNOVA 1000w G3
Software	Windows 10 Pro x64

HDD sentinel question

Devon68

Solaris17

Dainty Moderator

AsRock

TPU addict

newtekie1

Semi-Retired Folder