Power Ratings; Power Supply Connector - Dell OptiPlex Small Form Factor 7020 Owner's Manual

of constrained performance here is when using unbuffered I/O. To ensure that that writes are fully committed to nonvolatile
regions of the RAID volume, unbuffered I/O bypasses cache (for example by using the Force Unit Access bit in the NVMe
protocol) and the I/O operation will not complete until all the drives in the RAID volume have completed the request to commit
the data. This kind of I/O operation completely negates any advantage of a higher performing drive in the volume.
Care must be taken to match not only the drive vendor, capacity, and class, but also the specific model. Drives from the same
vendor, with the same capacity, and even within the same class, can have different performance characteristics for certain
types of I/O operations. Thus, matching by model ensures that the RAID volume consists of a homogeneous array of drives that
deliver all the benefits of a RAID volume without incurring the additional penalties when one or more drives in the volume are
lower performing.
OptiPlex Small Form Factor 7020 supports RAID with more than one hard drive configuration.

Power ratings

The following table lists the power rating specifications of OptiPlex Small Form Factor 7020.
Table 14. Power ratings
Description
Type
Input voltage
Input frequency
Input current (maximum)
Output current (continuous)
Rated output voltage
Temperature range
Operating
Storage

Power supply connector

The following table lists the Power supply connector specifications of your OptiPlex Small Form Factor 7020.
Table 15. Power supply connector
Power supply unit
180 W internal power supply unit
(PSU), 85% Efficient, 80 Plus
Bronze
300 W internal power supply unit
(PSU), 92% Efficient, 80 Plus
Platinum
Option one
180 W internal power supply unit (PSU),
85% Efficient, 80 Plus Bronze
90 VAC - 264 VAC
47 Hz - 63 Hz
3.0 A
● 12 VA / 15 A
● 12 VB / 14 A
Standby mode:
● 12 VA / 1.5 A
● 12 VB / 3.3 A
● +12 VA
● +12 VB
5°C to 45°C (41°F to 113°F)
-40°C to 70°C (-40°F to 158°F)
Connectors
● Two 4 pin connectors for processor
● One 8 pin connector for system board
● Two 4 pin connectors for processor
● One 8 pin connector for system board
Specifications of OptiPlex Small Form Factor 7020
Restricted - Confidential
Option two
300 W internal power supply unit (PSU),
92% Efficient, 80 Plus Platinum
90 VAC - 264 VAC
47 Hz - 63 Hz
4.2 A
● 12 VA / 18 A
● 12 VB / 18 A
Standby mode:
● 12 VA / 1.5 A
● 12 VB / 3.3 A
● +12 VA
● +12 VB
5°C to 45°C (41°F to 113°F)
-40°C to 70°C (-40°F to 158°F)
25