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6
Thermal Throttling
To protect the integrity of the data and prevent excessive heat dissipation, the
X600 3D NAND SATA SSD uses an integrated thermal sensor in the NAND to monitor
its critical component temperature. If the sensor temperature rises above the
allowable limit, system performance is throttled until the temperature decreases to
an acceptable level. The X600 returns to full performance when the temperature
returns to a normal range. This performance throttling technique acts as a safety
measure.
The X600 3D NAND SATA SSD reads temperature from the integrated thermal
sensor every one second. The device then autonomously decides which throttling
level is required and reduces performance appropriate to the state.
The following table details the thermal throttling behavior for both the X600 3D
NAND SATA SSD 2.5"/7mm cased and M.2 2280 form factors.
Thermal Band
Thermal Throttle
State
250GB Read
250GB Write
500GB Read
500GB Write
1TB Read
1TB Write
2TB Read
2TB Write
Light Thermal Throttle performance is defined has performance defined as 10% of
Normal. Heavy Thermal Throttle has performance is defined as 650% of Normal.
Emergency Shutdown is activated if device temperature is equal to or higher than
87°C for 20 seconds.
WD Blue 3D NAND SATA SSD
User Manual
≤74°C
≥75°C
Normal
Light (up to)
Refer to
250
Performance
Section
Refer to
60
Performance
Section
Refer to
250
Performance
Section
Refer to
60
Performance
Section
Refer to
250
Performance
Section
Refer to
60
Performance
Section
Refer to
240
Performance
Section
Refer to
70
Performance
Section
≥83°C
≥87°C
Heavy (up to)
Emergency
Shutdown
150
No host I/O
available in this
state
20
No host I/O
available in this
state
140
No host I/O
available in this
state
20
No host I/O
available in this
state
140
No host I/O
available in this
state
20
No host I/O
available in this
state
150
No host I/O
available in this
state
20
No host I/O
available in this
state
Thermal Throttling
14
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