Dell 0403X User 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 Option one Option two
Type
180 W internal power supply unit (PSU),
85% Efficient, 80 Plus Bronze
300 W internal power supply unit (PSU),
92% Efficient, 80 Plus Platinum
Input voltage
90 VAC - 264 VAC 90 VAC - 264 VAC
Input frequency
47 Hz - 63 Hz 47 Hz - 63 Hz
Input current (maximum)
3.0 A 4.2 A
Output current (continuous)
● 12 VA / 15 A
● 12 VB / 14 A
Standby mode:
● 12 VA / 1.5 A
● 12 VB / 3.3 A
● 12 VA / 18 A
● 12 VB / 18 A
Standby mode:
● 12 VA / 1.5 A
● 12 VB / 3.3 A
Rated output voltage
● +12 VA
● +12 VB
● +12 VA
● +12 VB
Temperature range
Operating
5°C to 45°C (41°F to 113°F) 5°C to 45°C (41°F to 113°F)
Storage
-40°C to 70°C (-40°F to 158°F) -40°C to 70°C (-40°F to 158°F)
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 Connectors
180 W internal power supply unit
(PSU), 85% Efficient, 80 Plus
Bronze
● Two 4 pin connectors for processor
● One 8 pin connector for system board
300 W internal power supply unit
(PSU), 92% Efficient, 80 Plus
Platinum
● Two 4 pin connectors for processor
● One 8 pin connector for system board
Specifications of OptiPlex Small Form Factor 7020 25
Restricted - Confidential

Dell 0403X Specifications

General

Brand	Dell
Model	0403X
Category	Desktop
Language	English