Precision Tower 7820: Visual guide to your Computer

Summary: This article is a visual guide to the internal and external ports and features of the Precision Tower 7820 Workstation.

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.
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Symptoms

The following article provides a visual guide to your Precision Tower 7820 Workstation and lists the external ports and features of your PC.

 
SLN308127_en_US__1icon Note: For a more detailed description about each location, please go to the system manuals at www.dell.com/support
 

Table of Contents:

  1. Front View
  2. Rear View
  3. Internal Views
  4. Additional Info:

 

Front View

 

SLN308127_en_US__27820_FrontView_BK

(Fig.1 Front View)

 

1 Power Button 2 HDD Activity LED
3 SD Card Slot 4 USB 3.1 Gen1 Connector x2
5 USB 3.1 Gen1 Type-C Connector with PowerShare 6 USB 3.1 Gen1 Connector Type-C
7 Headset Connector 8 Drive Access Release Latch
9 Slim Optical Disc Drive 10 5.25" ODD Bracket


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Rear View

 

SLN308127_en_US__37820_RearView_BK

(Fig.2 Rear View)

 

1 PSU BIST LED 2 Power Cable Unit (PSU)
3 Microphone / Line in Connector 4 Line Out Connector
5 Serial Connector 6 PS/2 Mouse Connector
7 PS/2 Keyboard Connector 8 Network (NIC) Connector
9 USB 3.1 Gen1 Connector (Supports Smart Power-On) 10 USB 3.1 Gen1 Connector x5
11 PCIe Expansion Card Slots x6 12 Mechanical Expansion Slots


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Internal Views

 

SLN308127_en_US__47820_InsideView_BK_01

(Fig.3 Internal top View)

 

1 PSU Bracket 2 HDD Bezel lock / unlock Button
3 ODD 5.25" Bracket 4 Intrusion Switch
5 PCIe Holder 6 Motherboard
7 GPU 8 Air Shroud

 

SLN308127_en_US__57820_InsideView_BK_02

(Fig.4 Internal motherboard View)

 

1 Heat Sink 2 PSU Distribution Board
3 System Fan 4 5.25" ODD Bracket
5 Speaker 6 2.5" Optical Disc Drive
7 Front System Fan 8 Coin Cell Battery
9 Half Length PCIe Card 10 Rear System Fan


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Additional Info:

 


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Cause

N/A

Resolution

N/A

Affected Products

Precision 7820 Tower
Article Properties
Article Number: 000125797
Article Type: Solution
Last Modified: 29 May 2025
Version:  7
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