Set up your computer 1. Connect the keyboard and mouse. Connect the keyboard and mouse 2. Connect to your network using a cable, or connect to a wireless network. Set up your computer...
Page 5
connect to a network 3. Connect the display. Connect the display 4. Connect the power cable. Set up your computer...
Page 6
5. Press the power button. Set up your computer...
Page 7
Follow the on-screen instructions to complete the setup. For more information about installing and configuring Ubuntu, search in the Knowledge Base Resource at www.dell.com/support. For Windows: Follow the on-screen instructions to complete the setup. When setting up, Dell recommends that you: ● Connect to a network for Windows updates. NOTE: If connecting to a secured wireless network, enter the password for the wireless network access when prompted.
Page 8
Dell Update, search in the Knowledge Base Resource at www.dell.com/ support. Dell Digital Delivery Download software applications, which are purchased but not preinstalled on your computer. For more information on using Dell Digital Delivery, search in the Knowledge Base Resource at www.dell.com/support. Set up your computer...
Views of Precision 7865 Tower Front 1. Externally facing M.2 flexbay (optional) 2. Externally facing SATA flexbay (optional) 3. Slim optical-drive (optional) 4. Power button 5. Hard-drive activity light 6. Universal audio port 7. USB 3.2 Gen 1 port 8. USB 3.2 Gen 1 port 9.
7. RJ45 Ethernet port (10 Gbps) 8. Three USB 3.2 Gen 2 Type-C ports 9. Five PCIe Gen4 expansion slots 10. USB 3.2 Gen 1 port with Smart Power On 11. Two USB 3.2 Gen 1 ports Views of Precision 7865 Tower...
Specifications of Precision 7865 Tower Dimensions and weight The following table lists the height, width, depth, and weight of your Precision 7865 Tower. Table 2. Dimensions and weight Description Values Height ● 414.00 mm (16.29 in.) ● 417.90 mm (16.45 in.) with rubber foot protruding Width ●...
Chipset The following table lists the details of the chipset supported by your Precision 7865 Tower. Table 4. Chipset Description Values Chipset AMD WRX80 Premium Processor AMD Ryzen Threadripper PRO 5000 DRAM bus width 64-bit Flash EPROM 32 MB + 16 MB PCIe bus Up to Gen 4.0...
To learn more about the features of different types of M.2 cards, see the knowledge base article 000144170 at www.dell.com/support. Ethernet The following table lists the wired Ethernet Local Area Network (LAN) specifications of your Precision 7865 Tower. Table 9. Ethernet specifications Description Values Model number ●...
PCIe NVMe Gen4 x4 Up to 1 TB Encrypting Opal 2.0, FIPS RAID For optimal performance when configuring drives as a RAID volume, Dell recommends drive models that are identical. Table 13. RAID (Redundant Array of Independent Disks) Type Supported...
5°C to 45°C (41°F to 113°F) Storage -40°C to 70°C (-40°F to 158°F) Power supply connector The following table lists the Power supply connector specifications of your Precision 7865 Tower. Table 16. Power supply connector 1350 W (Platinum) ● Three 4-pin connectors for processor ●...
GDDR6 AMD Radeon Pro W6400 4 GB GDDR6 Video port resolution The following table lists the video port resolution for your Precision 7865 Tower. Table 18. Video port resolution Graphics card Video ports Maximum supported resolution NVIDIA GeForce RTX 3090 ●...
7680 x 4320 @60 Hz AMD Radeon Pro W6400 Two DP 1.4 ports 7680 x 4320 @60 Hz Hardware security The following table lists the hardware security of your Precision 7865 Tower. Table 19. Hardware security Hardware security Kensington security-cable slot Padlock loop...
Japan Energy Law South Korea E-standby EU RoHS China RoHS Operating and storage environment This table lists the operating and storage specifications of your Precision 7865 Tower. Airborne contaminant level: G1 as defined by ISA-S71.04-1985 Table 22. Computer environment Description Operating...
Page 22
Operating and storage temperature ranges may differ among components, so operating or storing the device outside these ranges may impact the performance of specific components. * Measured using a random vibration spectrum that simulates user environment. † Measured using a 2 ms half-sine pulse. Specifications of Precision 7865 Tower...
Getting help and contacting Dell Self-help resources You can get information and help on Dell products and services using these self-help resources: Table 23. Self-help resources Self-help resources Resource location Information about Dell products and services www.dell.com Tips Contact Support In Windows search, type Contact Support, and press Enter.