Dell Precision 3640 Tower User Manual

Disassembly and reassembly
Recommended tools
The procedures in this document require the following tools:
• Phillips # 1 screwdriver
• Small flat blade screwdriver
Screw list
The following table provides the list of screws that are used for securing different components to the computer.
Table 1. Screw list
Component
#6-32x1/4'' M2x2.5 M3X3 M2X3.5
Power supply bracket 2
Power supply unit 4
Heat sink blower (95 W heat sink solution) 3
System-fan bracket 1
System board 8
IO panel 1
Security-lock metal bracket 2
Solid-state drive (SSD) card 1
Optical drive bracket 1
Optional IO card 2
WLAN card and SMA antenna module 1
Chassis rubber feet
Removing the chassis rubber feet
Steps
1. Follow the procedure in Before Working Inside Your Computer.
4
16 Disassembly and reassembly

Dell Precision 3640 Tower Specifications

General

Processor Options	Intel Core i9, i7, i5, i3; Intel Xeon W-Series
Operating System	Windows 10 Pro, Windows 10 Home, Ubuntu Linux, Red Hat Enterprise Linux 8.2
Memory	Up to 128GB DDR4
Storage Options	2.5" HDD/SSD, M.2 SSD, 3.5" HDD
Storage Specific	M.2 PCIe NVMe SSD
Graphics Options	NVIDIA Quadro, AMD Radeon Pro, Integrated Intel UHD Graphics
Graphics Specific	Up to NVIDIA Quadro RTX 5000 (16GB GDDR6)
Dimensions	175mm (6.89 inches)
Weight	6.6 kg
Expansion Slots	1 x PCIe x16 Gen3, 1 x PCIe x4 Gen3, 1 x PCIe x1 Gen3
Front Ports	2 USB 3.2 Gen 1 Type-A, 1 Universal Audio Jack
Rear Ports	2 USB 2.0 Type-A, 1 RJ-45 Ethernet
Other Ports	Optional Serial Port, Optional PS/2 Ports
Power Supply	300W EPA Bronze 550W EPA Platinum