Dell PRECISION 3620 User manual

DELL PRECISION™ TOWER 3000 SERIES-
TOWER 3620, 3420
Technical
Guidebook

TABLE OF CONTENTS
OVERVIEW PAGE
Dell Precision Tower 3620 Workstaon (Mini Tower) View 3-4
Dell Precision Tower 3420 Workstaon (Small Form Factor) View 5-7
MARKETING SYSTEM CONF IG U R A TIONS
Operang System, Chipset 8
Processor 9
Memory 10
Graphics/Video Controllers 11
Drives and Removable Storage 12-14
System Expansion Slots, External Ports/Connectors 14-15
Hard Drive Controller, Communicaons—Network Adapter, Audio and Speakers, Keyboard and Mouse 15-16
Security, Service and Support, Soware 16
DETAILED ENGINEERING SPECIFICATIONS
System Dimensions (Physical), System Expansion Slots 17
System Level Environmental and Operang Condions 18
Power 19-20
Audio—Integrated, Communicaons– Integrated LAN 20-22
Communicaons—Add in Network Interface Card (NIC) 22
Communicaons—Add in 1394 card, Add in Parallel / Serial Card (TOWER 3620) Add in Serial or Parallel (TOWER
3420)
23-26
Graphics/Video Controllers 27-40
Hard Drives 41-48
Dell Ultra Speed Drive duo 49-50
Opcal Drive 51-52
Media Card Reader 53-54
BIOS Defaults 55-56
USB inializaon sequence 57-58
Chassis Enclosure and Venlaon Requirements 59
Dell Precision Tower 3620, 3420

DELL™ PRECISION™ TOWER 3620 , TOWER 3420 TECHNICAL GUIDEBOOK
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EXTERNAL CHASSIS VIEWS—MINI TOWER
BACK VIEW
11 Power Supply Diagnosc
Light
15 Expansion Card Slots
(4)
12 Power Supply Diagnosc
Buon
16 Kensington / Noble
Security Cable Slot
13 Power Connector 17 Padlock Ring
14 Back Panel Connectors
BACK PANEL CONNECTORS
1PS2_Mouse Connector 7PS2_Keyboard Connector
2Link Integrity Light 8USB2.0 Connectors (2) with
Smart Power on
3Network Connector 9DisplayPort Connector(2)
4Network Acvity Light 10 HDMI Connector
5Serial Connector 11 USB3.0 Connectors (4)
6Line-out Connector 12 Line-in/Microphone Con-
nector
FRONT VIEW
1Power Buon, Power
Light
6USB 2.0 Connector
2Opcal Drive Bay
(oponal)
7USB 2.0 Connector with
Power Share Funcon
3Headphone Connector 8Hard Drive Acvity Light
4Microphone Connector 9Opcal Drive (oponal)
5USB 3.0 Connectors (2) 10 Opcal Drive Eject Buon

DELL™ PRECISION™ TOWER 3620 , TOWER 3420 TECHNICAL GUIDEBOOK
4
MOTHERBOARD LAYOUT
TOWER 3620 System Board Components
Number Name Number Name
1Thunderbolt Header (TBT_HDR) 16 PCI-e x16 Gen 3 Slot (SLOT1)
2M.2 NGFF Card Slot(M.2_SLOT2) 17 HDD_ODD_Power Cable Connector (SATA_PWR)
3Front USB3.0 Connector (F_USB3) 18 P1 Power Connector (ATX_SYS_1)
4SATA 0 Connector (SATA0) (Blue color) 19 Power Switch Connector (PWR_SW)
5Front IO Connector (F_PANEL2) 20 Internal USB Connector (INT_USB)
6SATA 3 Connector (SATA3) (Black color) 21 SATA 1 Connector (SATA1) (White color)
7PSWD Jumper (PSWD) 22 SATA 2 Connector (SATA2) (Black color)
8PCH chip (N/A) 23 DIMM Slots (DIMM1, DIMM2, DIMM3, DIMM4)
9SERVICE_MODE Jumper (SERVICE_MODE) 24 Coin-cell Baery (BATTERY)
10 Internal Speaker Connector (INT_SPKR) 25 CPU Fan Connector (FAN_CPU)
11 CMCLR Jumper (CMCLR) 26 CPU Socket (XU1)
12 CLINK Header (CLINK) 27 System Fan Connector (FAN_SYS2)
13 PCI-e x16 (wire x4) Slot (SLOT4) 28 P2 Power Connector (ATX_CPU)
14 PCI-e x4 Slot (SLOT3) 29 Intrusion Switch Connector (INTRUDER)
15 PCI Slot (SLOT2)

DELL™ PRECISION™ TOWER 3620 , TOWER 3420 TECHNICAL GUIDEBOOK
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EXTERNAL CHASSIS VIEWS—SMALL FORM FACTOR
FRONT VIEW
1Opcal Drive 6USB 2.0 Connector with Power
Share Funcon
2Opcal Drive Eject
Buon
7Universal Audio Jack
3Power Buon, Power
Light
8Card Reader Opening
4USB 3.0 Connectors (2) 9HDD Drive Acvity Light
5USB 2.0 Connector
BACK VIEW
10 Padlock Ring 14 Expansion Card Slots
(2)
11 Kensington / Noble
Security Cable Slot
15 Power Connector
12 Power Supply Diagnos-
c Buon
16 Power Supply Diag-
nosc Light
13 Back Panel Connectors
BACK PANEL CONNECTORS
1Line-out Connector 7HDMI Connector
2VGA Connector
(Oponal) 8Display Port Connectors(2)
3PS2_Mouse Connector 9Serial Connector
4Link Integrity Light 10 PS2_Keyboard Connector
5Network Connector 11 USB3.0 Connectors (4)
6Network Acvity Light 12 USB2.0 Connectors (2) with
Smart Power on

DELL™ PRECISION™ TOWER 3620 , TOWER 3420 TECHNICAL GUIDEBOOK
6
MOTHERBOARD LAYOUT
TOWER 3420 System Board Components
Number Name Number Name
1P1 Power Connector (ATX_SYS) 14 PCIe x4 Connector(SLOT1)
2SERVICE_MODE Jumper (SERVICE_MODE) 15 System Fan Connector (FAN_SYS)
3SATA 2 Connector (SATA2) (Black color) 16 Media Card Reader Connector (MCR)
4SATA 0 Connector (SATA0) (Blue color) 17 Power Switch Connector (PWR_SW)
5Internal Speaker Connector (INT_SPKR) 18 M.2 NGFF Card Slot (SLOT3_M.2)
6HDD_ODD_Power Cable Connector (SATA_PWR) 19 PWCLR Jumper (PWCLR)
7Connector for WLAN Caddy card Clink cable 20 Memory Connectors(DIMM1, DIMM2,
DIMM3, DIMM4)
8SATA 1 Connector (SATA1) (White color) 21 CPU Fan Connector (FAN_CPU)
9PCH chip (N/A) 22 CPU Socket (XU1)
10 Baery Connector (BATTERY) 23 VGA Connector (VGA)
11 Thunderbolt Header (TBT) 24 Intrusion Switch Connector (INTRUDER)
12 CMCLR Jumper (CMCLR) 25 P2 Power Connector (ATX_CPU)
13 PCIe x16 Connector (SLOT2)

DELL™ PRECISION™ TOWER 3620 , TOWER 3420 TECHNICAL GUIDEBOOK
7
TOWER 3420 Oponal Cable Cover
Cable Cover Dimension HxWxD (inches/cenmeters) =
4.13 x 3.65 x 11.42 / 10.5 x 9.26 x 29

DELL™ PRECISION™ TOWER 3620 , TOWER 3420 TECHNICAL GUIDEBOOK
8
MARKETING SYSTEM CONFIGURATIONS
NO T E : O  e r i ng s ma y vary by country. For more informaon regarding the congura o n of your compute r , click Start>Help
and S u p p o r t a n d s e l ect t he o p  o n t o v i e w info r ma o n a b o u t y o u r computer .
OPERATING SYSTEM
Wi n d o w s 7 , Wi n d o w s 8 . 1 , R H E L 7 . 2 , U b u n t u 14. 0 4 , N e o k y l i n 6 S P 2 O p e r a  n g S y s t e m s a r e o nly s u p p o r t e d w i th 6 t h G e n I n t e l
Core i 3 , i 5 , i 7 & E 3 -1 2 0 0 v 5 P r o c e s sors.
RHE L 7 . 3 , U b u n t u 1 6 . 0 4 , N eok yl i n 6 S P 3 a r e o n l y supporte d w i t h 7 t h G e n I n t e l Core I P r o c e s s o r s
CHIPSET
Chipset Intel C236 Chipset
Non-volale memory on chipset
BIOS Conguraon SPI (Serial Peripheral Interface) 128Mbit (16MB)
TPM 2.0 Security Device (Trusted Plaorm Module)124KB
NIC EEPROM LOM conguraon contained within SPI_FLASH – no dedicated LOM EEPROM
Windows operang system
Microso® Windows 10 Pro (64 bit),
Microso® Win10 Home (64bit)
Microso® Windows 8.1 Pro (64bit)
Microso® Win8.1 Home (64bit),
Microso® Windows 7® Professional SP1 (32 and 64 bit),
Linux operaons system
Red Hat Enterprise Linux 7.2 / 7.3
Ubuntu 14.04 / 16.04
NeoKylin 6 SP2 / SP3
OS Media Support Oponal

DELL™ PRECISION™ TOWER 3620 , TOWER 3420 TECHNICAL GUIDEBOOK
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PROCESSOR
NOTE: Global Standard Products (GSP) are a subset of Dell’s relaonship products that are managed for availability and synchronized transions
on a worldwide basis.. They ensure the same plaorm is available for purchase globally. This allows customers to reduce the number of congu-
raons managed on a worldwide basis, thereby reducing their costs. They also enable companies to implement global IT standards by locking in
specic product conguraons worldwide. The following GSP processors idened below will be made available to Dell customers.
NOTE: Intel Core i3/i5/i7 processors can only be paired with Non-ECC memory.
Tower
3620 Tower 3420 Integrated Graphics Support
Intel® Xeon Quad Core Processors
Intel® Xeon E3-1240 v5
3.50GHz, 3.9Ghz Turbo, 8M, 80W, HT, Turbo Boost, VT-x, VT-d, TXT, Pro™X X None
Intel® Xeon E3-1270 v5
3.60GHz, 4.0Ghz Turbo, 8M, 80W, HT, Turbo Boost, VT-x, VT-d, TXT, Pro™X X None
Intel® Xeon E3-1220 v5
3.00GHz, 3.5Ghz Turbo, 8M, 80W, Turbo Boost, VT-x, VT-d, TXT, vPro™X-GSP X-GSP None
Intel® Xeon E3-1225 v5
3.30GHz, 3.7Ghz Turbo, 8M, 80W, Turbo Boost, VT-x, VT-d, TXT, vPro™X-GSP X-GSP Intel HD P530 Graphics
Intel® Xeon E3-1245 v5
3.50GHz, 3.9Ghz Turbo, 8M, 80W, HT, Turbo Boost, VT-x, VT-d, TXT,vPro™X-GSP X-GSP Intel HD P530 Graphics
Intel® Core Quad Core Processors
Intel® Core i7-6700K1
4.00GHz, 4.2Ghz Turbo, 8M, 91W, HT, Turbo Boost, VT-x, VT-dXIntel HD 530 Graphics
Intel® Core i7-6700
3.40GHz, 4.0Ghz Turbo, 8M, 65W, HT, Turbo Boost, VT-x, VT-d, TXT, vPro™X-GSP X-GSP Intel HD 530 Graphics
Intel® Core i5-6600
3.30GHz, 3.9Ghz Turbo, 6M, 65W, Turbo Boost, VT-x, VT-d, TXT, vPro™XXIntel HD 530 Graphics
Intel® Core i5-6500
3.20GHz, 3.6Ghz Turbo, 6M, 65W, Turbo Boost, VT-x, VT-d, TXT, vPro™X-GSP X-GSP Intel HD 530 Graphics
Intel® Core i7-7700K1
4.20GHz, 4.5Ghz Turbo, 8M, 91W, HT, Turbo Boost, VT-x, VT-dXIntel HD 630 Graphics
Intel® Core i7-7700
3.50GHz, 4.1Ghz Turbo, 8M, 65W, HT, Turbo Boost, VT-x, VT-d, TXT, vPro™X-GSP X-GSP Intel HD 630 Graphics
Intel® Core i5-7600
3.30GHz, 3.9Ghz Turbo, 6M, 65W, Turbo Boost, VT-x, VT-d, TXT, vPro™XXIntel HD 630 Graphics
Intel® Core i5-7500
3.40GHz, 3.8Ghz Turbo, 6M, 65W, Turbo Boost, VT-x, VT-d, TXT, vPro™X-GSP X-GSP Intel HD 630 Graphics
Intel® Core Dual Core Processors
Intel® Core i3-6100
3.70GHz, 3M, 65W, HT, VT-x, VT-dXXIntel HD 530 Graphics
1 The i7-6700K * i7700K is locked in the BIOS and cannot be overclocked.

DELL™ PRECISION™ TOWER 3620 , TOWER 3420 TECHNICAL GUIDEBOOK
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MEMORY
NOTE: The Dell Precision TOWER 3620/TOWER 3420 has a dual channel memory bus architecture. Dell recommends that two memory channels be
populated with DIMMS for maximum memory performance.. Please note, UDIMM ECC and NECC memory cannot be mixed.
NOTE: Not all memory opons are available for Factory Installaon.. Processor availability subject to change and may vary by region/country.
NOTE: Maximum memory speed is ed to processor. Intel 7th Gen Processor only supports 2400Mhz memory. 2400Mhz memory will clock down
to 2133Mhz when paired with Intel 6th Gen Core I or E3-1200 v5 Processors
1 The total amount of available memory will be less than 4GB on systems running 32-bit operating systems. The amount less depends on the actual
system configuration. To fully utilize 4GB or more of memory requires a 64-bit operating system.
Tower 3620 Tower 3420
Memory specicaons
Type: DDR4 Non-ECC UDIMM and ECC UDIMM
Max Frequency 2133 MHz / 2400MHz
DIMM Slots 4
DIMM Capacies Up to 16GB
Minimum Memory 4GB
Maximum System Memory 64GB
Memory opons
ECC UDIMM Memory (only available with Xeon processors)
64GB (4 x 16 GB) DDR4, 2133 MHz XX
32GB (2x 16 GB) DDR4, 2133 MHz XX
32GB (4 x 8 GB) DDR4, 2133 MHz XX
16GB (2 x 8 GB) DDR4, 2133 MHz XX
16GB (4 x 4 GB) DDR4, 2133 MHz XX
8GB (1 x 8 GB) DDR4, 2133 MHz XX
8GB (2 x 4 GB) DDR4, 2133 MHz XX
4GB1 (1 x 4GB) DDR4 2133 MHz, XX
Non- ECC Memory (NECC)
64GB (4 x 16 GB) DDR4, 2133 MHz and 2400MHz XX
32GB (2x 16 GB) DDR4, 2133 MHz and 2400MHz XX
32GB (4 x 8 GB) DDR4, 2133 MHz and 2400MHz XX
16GB (2 x 8 GB) DDR4, 2133 MHz and 2400MHz XX
16GB (4 x 4 GB) DDR4, 2133 MHz and 2400MHz XX
8GB (1 x 8 GB) DDR4, 2133 MHz and 2400MHz XX
8GB (2 x 4 GB) DDR4, 2133 MHz and 2400MHz XX
4GB1 (1 x 4 GB) DDR4 2133 MHz, and 2400MHz XX

DELL™ PRECISION™ TOWER 3620 , TOWER 3420 TECHNICAL GUIDEBOOK
11
GRAPHICS/VIDEO CONTROLLER
NOTE: Mini Tower supports full height (FH) cards unless specied. Small Form Factor supports low prole (LP) cards.
NOTE: Dual Graphic opons available on Mini Tower only where specied.
1NOTE: Intel Integrated Graphics is only available on select processors. The specic processor determines which type of Integrated graphics is
available.
3Note: “S” for single, “D” for Dual” and “S,D” for single or Dual Graphics support.
Graphic/Video Opons Tower 3620 Tower 3420 Included Dongle
Professional 2D
NVIDIA NVS 510 with (4) mDP , 2GB, 33.4W S, D SmDP-VGA, mDP–DP, mDP-
HDMI, mDP–DVI-D
NVIDIA NVS 310 with (2) DP，512MB, 19.5W S, D SmDP-VGA, mDP–DP, mDP-
HDMI, mDP–DVI-D
NVIDIA NVS 310 with (2) DP , 1GB, 19.5W S, D SmDP-VGA, mDP–DP, mDP-
HDMI, mDP–DVI-D
NVIDIA NVS 315 with (1) DMS-59, 1GB, 19.3W S, D S, D
DMS-59–Dual DVI-I, DMS-59–
Dual DP,DMS-59–HDMI, DMS-59
–Dual VGA
Entry 3D
AMD FirePro W4100 with (4)mDP, 2GB, ＜50W S, D SmDP-DP
AMD FirePro W2100 with (2)DP, 2GB, ＜50W S, D SDP–DP
NVIDIA Quadro K620 with (1) DP and (1) DVI , 2GB, 45W S, D SDP–DVI,DP–DP,DVI–VGA
NVIDIA Quadro K420 with (1) DP and (1) DVI , 2GB, 41W SSDP–DVI,DP–DP,DVI–VGA
NVIDIA Quadro K1200 with (4)mDP, 4GB, 46W S3SmDP-DP, mDP–VGA, mDP–
HDMI
Mid-range 3D
AMD FirePro W7100 with (4) DP, 8GB, ＜150W SDP–DP
AMD FirePro W5100 with (4) DP, 4GB, 75W SDP–DP
4NVIDIA Quadro K2200 with (2) DP and (1) DVI, 4GB, 67.7W SDP–DVI,DP–DP,DVI–VGA
NVIDIA Quadro M20002 with (4) DP, 4GB, 61.5W SDP–DP
NVIDIA Quadro M40002 with (4) DP, 8GB, 120W SDP–DP
Integrated Graphics1
Intel HD 530 Graphics, system ports 2DP+1HDMI (6th Gen CPU) On board On board None included
Intel HD 630 Graphics, system ports 2DP+1HDMI (7th Gen CPU) On board On board None included

DELL™ PRECISION™ TOWER 3620 , TOWER 3420 TECHNICAL GUIDEBOOK
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DRIVES AND REMOVABLE STORAGE
NOTE: Intel Rapid Storage Technology (RST) supported with Windows Operang System
TOWER 3620 TOWER 3420
Bays:
5.25-inch Opcal Bay (External) 2
Slimline Opcal Bay (External) 1
Opcal Drives Supported (maximum) 2 1
Hard Drive Bay Supported (Internal) 4 (2x 3.5” or 4x 2.5”) 2 (1x 3.5” or 2x 2.5”)
Hard Drives Supported 3.5”/2.5” (maximum) (Excludes 1x M.2 PCIe
SSD on motherboard) 2/4 1/2
Interface:
SATA 3.0 (TOWER 3620/TOWER 3420 opcal or 3rd/4th Hard Drive
on TOWER 3620) 21
SATA 3.0 (TOWER 3620/TOWER 3420 Hard Drives) 22
3.5” Hard Drives:
4TB SATA 5400 RPM HDD X X
2TB SATA 7200 RPM HDD X X
1TB SATA 7200 RPM HDD X X
500GB1 SATA 7200 RPM HDD X X
2.5” Hard Drives:
1TB SATA 7200 RPM HDD X X
500GB1 SATA 7200 RPM HDD X X
500GB1 SATA 7200 RPM SED OPAL FIPS HDD XX
512GB1 SATA Class 20 Solid State Drive X X
512GB1 SATA Class 30 Solid State Drive XX
512GB1 SATA SED Class 20 Solid State Drive XX
360GB1 SATA Class 20 Solid State Drive X X
256GB1 SATA Class 20 Solid State Drive X X
256GB1 SATA Class 30 Solid State Drive XX
128GB1 SATA Class 20 Solid State Drive XX
1 For hard drives, GB means 1 billion bytes; actual capacity varies with preloaded material and operating environment and will be less.
2 The M.2 SSD is installed in 2280 M.2 slot on MB.

DELL™ PRECISION™ TOWER 3620 , TOWER 3420 TECHNICAL GUIDEBOOK
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DRIVES AND REMOVABLE STORAGE
TOWER 3620 TOWER 3420
M.2 2280 Solid State Driver
1TB1 PCIE 2280 Class 40 Solid State Drive2XX
512GB1 PCIE 2280 Class 40 Solid State Drive2XX
512GB1 PCIE 2280 Class 50 Solid State Drive XX
256GB1 PCIE 2280 Class 40 Solid State Drive2XX
256GB1 PCIE 2280 Class 50 Solid State Drive XX
1 For hard drives, GB means 1 billion bytes; actual capacity varies with preloaded material and operating environment and will be less.
2 The M.2 SSD is installed in 2280 M.2 slot on MB.

DELL™ PRECISION™ TOWER 3620 , TOWER 3420 TECHNICAL GUIDEBOOK
14
DRIVES AND REMOVABLE STORAGE (CON ’T)
SYSTEM EXPANSION SLOTS
NOTE: See Detailed Engineering Specicaons for supported voltage, maximum waage and card dimensions.
TOWER 3620 TOWER 3420
PCIe x16 Slot Gen 3 11
PCIe x16 (wired x4) Slot Gen 3 1
PCIe x4, (open ended) Slot Gen 3 11
PCI 32/33 Slot 1
Serial ATA (SATA) connectors (for Hard Drives and Opcal) 43
TOWER 3620 TOWER 3420
Opcal Drive:
5.25” 16X DVD+/-RW1 SATA 1.5Gbit/s X
5.25” 16X DVD-ROM2 SATA 1.5Gbit/s X
5.25” 8x Blu Ray Writer X
Slimline 8X DVD+/-RW1 SATA 1.5Gbit/s X
Slimline 8X DVD-ROM2 SATA 1.5Gbit/s X
Slimline 6X Blu Ray Writer X
Media Card Reader:
Dell 19 in 1 Media Card Reader X
Media Card Reader-Integrated (SD 4.0) X
EXTERNAL PORTS/CONNE CTORS
NOTE: See chassis diagrams secon for port/connector locaons. External ports/ connectors at the same on TOWER 3620 & TOWER 3420.
USB 3.0 2 Front, 4 Rear
USB 2.0 2 Front, 2 Rear
Internal USB 2.0 2 Internal (Tower 3620), None (Tower 3420)
Serial 1 Rear (2nd via oponal Add in Card)
Network Connector (RJ-45) 1 Rear
PS/2 2 Rear
1394 Controller via oponal PCI card Oponal via Add in Card, Customer kit only
Parallel Oponal via Parallel / 2nd Serial PCIE add in Card
1 Discs burned with this drive may not be compable with some exisng drives and players; using DVD+R media provides maximum compability.
2 DVD-ROM drives may have write-capable hardware that has been disabled via rmware modicaons.
NOTE: Dell 19 in 1 Media Card Reader (MCR) is supported via a F5 to F3 bay converter in the 5.25” Opcal Drive Bay on TOWER 3620 only.

DELL™ PRECISION™ TOWER 3620 , TOWER 3420 TECHNICAL GUIDEBOOK
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TOWER 3420TOWER 3620
Intel® Ethernet Connecon I219-LM 10/100/10001Integrated on system board
Intel 10/100/1000 PCIe Gigabit1 Networking Card Oponal card
1 This term does not connote an actual operang speed of 1 Gb/sec. For high speed transmission, connecon to a Gigabit Ethernet server and network
infrastructure is required.
TOWER 3620 TOWER 3420
Realtek ALC3861 High Denion Audio Codec plus ALC1003 Audio
Amplier Integrated on mother board
Realtek ALC3234-CG High Denion Audio Codec Integrated on mother board
Internal Chassis Speaker 100%
Dell 2.0 USB powerd Speakers AX210 (Rolling stones) Oponal
Dell 2.0 USB Soundbar Speakers AC511 (Potena) Oponal
Dell 2.0 Mulmedia Speaker AC411(Eagles) Oponal
Dell Professional Stereo Headset UC300(Rihanna) Oponal
Logitech C920 Webcam Oponal
AUDIO AND SPEAKERS
COMMUNICATIONS - NETWORK ADAPTER (NIC)
Tower 3620 Tower 3420
Intel Rapid Storage Controller 12.0 supporng SATA 6Gb/s (4ports–
SATA0, SATA1,SATA2,SATA3) , host based RAID 0/1/5/10 Integrated
Intel Rapid Storage Controller 12.0 supporng SATA 6Gb/s (3 ports–
SATA0, SATA1,SATA2) host based RAID 0/1 Integrated
HARD DRIVE CONTROLLER
EXTERNAL PORTS/CONNE CTORS (CONT.)
NOTE: See chassis diagrams secon for port/connector locaons. External ports/ connectors at the same
Tower 3620 Tower 3420
Audio:
Line in for microphone 1 Front
Line in for microphone or stereo 1 Rear
Line out for headphones or speakers 1 Front, 1 Rear

DELL™ PRECISION™ TOWER 3620 , TOWER 3420 TECHNICAL GUIDEBOOK
16
SECURITY
SERVICE AND SUPPORT
NO T E : F o r m o r e d e t a i l s on Dell S e r v i c e P l a n s plea se to go t o : ww w . d e l l . c om / se r v i c e / s e r v i c e _ p l a n s
SOFTWARE
TOWER 3620 TOWER 3420
Trusted Plaorm Module (TPM) 2.0 Integrated on system board
Chassis Intrusion Switch 100%
Dell Smartcard Keyboard Oponal
Chassis lock slot and loop support Standard
Dell Data Protecon | Encrypon Accelerator Card Oponal
1 Year Warranty1 Next Business Day On-site2 (3-3-3) Standard
ProSupport Oponal
ProSupport Plus Oponal
1 For a copy of our guarantees or limited warranes, please write Dell USA L.P., An: Warranes, One Dell Way, Round Rock, TX 78682. For more informaon, visit
www.dell.com/warranty.
2 Service may be provided by third-party. Technician will be dispatched if necessary following phone-based troubleshoong. Subject to parts availability, geograph-
ical restricons and terms of service contract. Service ming dependent upon me of day call placed to Dell. U.S. only.
Dell Data Protecon | Security Tools (DDP|ST) Standard
Dell Data Protecon | Encrypon (DDPE) Oponal
KEYBOARD AND MOUSE
TOWER 3620 TOWER 3420
Dell USB Entry Keyboard Oponal
Dell Mulmedia Pro Keyboard Oponal
Dell Smartcard Keyboard Oponal
Dell USB Opcal Mouse Oponal
Dell Laser Mouse Oponal

DELL™ PRECISION™ TOWER 3620 , TOWER 3420 TECHNICAL GUIDEBOOK
17
DETAILED ENGINEERING SPECIFICATIONS
SYSTEM DIMENSIONS (P HYSICAL)
NOTE: System Weight and Shipping Weight is based on max conguraon and may vary based on PC conguraon. Max conguraon includes: full graphics
card, two hard drive and two opcal drive.
SYSTEM EXPANSION SLOTS—MINI TOWER
No. Type Voltage supported Max Height (in,cm) Max Length (in, cm) Max Waage Cards supported
Slot1 PCIe x16 Gen3 3.3V/12V Standard Height
4.7 in / 11.94 cm
3/4 Length
9.5in / 24.13cm
75W#* Graphics, Gigabit NIC,
Parallel / Serial
Slot2 PCI 3V/5V/12V/-12V Standard Height
4.7 in / 11.94 cm
3/4 Length
9.5in / 24.13cm
25W 1394
Slot3 PCIe x4 Gen3 3.3V/12V Standard Height
4.7 in / 11.94 cm
Half Length
6in / 15.24 cm
25W Gigabit NIC, Parallel /
Serial
Slot4 PCIe x16 (x 4) Gen3 3.3V/12V Standard Height
4.7 in / 11.94 cm
Half Length
6 in / 15.24 cm
25W*Graphics, Gigabit NIC,
Parallel / Serial
Note: Slot #1 is default for factory installed graphics card
# Supports up to 150W Graphics power in Slot 1 using oponal 365W PSU that provides addional 75W using a 6 Pin power adapter. In this
scenario, slot 4 is limited to 25W
* Please note that total power consumpon for both Slot 1 + Slot 4 <= 100W. If using Dual video cards, card on slot 4 can exceed 25W, as long
as max. power between Slot 1 + Slot 4 <-100W
SYSTEM EXPANSION SLOTS—SMALL FORM FACTOR
No. Type Voltage supported Max Height (in,cm) Max Length (in,
cm)
Max Wa-
age Cards supported
Slot1 PCIe x4 Gen3 3.3V/12V Half Height
3.35 in / 8.51 cm
Half Length
6.6 in / 16.77 cm
25W*Graphics, Gigabit NIC,
Parallel, Serial
Slot2 PCIe x16 Gen3 3.3V/12V Half Height
3.35 in / 8.51 cm
Half Length
6.6 in / 16.77 cm
50W*Graphics, Gigabit NIC,
Parallel, Serial
TOWER 3620 TOWER 3420
Chassis Volume (liters) 27.41 7.84
Chassis Weight (pounds/kilograms) 25.76 / 11.71 13.75 / 6.25
Chassis Dimensions: (HxWxD)
Height (inches/cenmeters) 14.17 / 36 11.42 / 29
Width (inches/cenmeters) 6.89 / 17.5 3.65 / 9.26
Depth (inches/cenmeters) 17.12 / 43.5 11.50/29.2
Shipping Weight (pounds/kilograms - includes packaging materials) 33.81/ 15.37 19.36 / 8.8
Packaging Parameters (HxWxD)
Height (inches/cenmeters) 18.75 / 47.6 15.50 / 39.4
Width (inches/cenmeters) 14.09 / 35.8 10.38 / 26.4
Depth (inches/cenmeters) 22.44 / 57.0 19.19 / 48.7
* Please note that total power consumpon for both slots <= 50W.

DELL™ PRECISION™ TOWER 3620 , TOWER 3420 TECHNICAL GUIDEBOOK
18
SYSTEM LEVEL ENVIRONMENTAL AND OPERATING CONDITIONS
TOWER 3620 TOWER 3420
Temperature
Operang 5° to 35° C (41° to 95° F)
Non-Operang (Storage) -40° to 65° C (-40° to 149° F)
Relave Humidity 20% to 80% (non-condensing)
Maximum vibraon
Operang 0.26Grms random at 5 to 350 Hz
Non-Operang 1.37 Grms random at 5 to 500 Hz
Maximum Shock
Operang Boom half-sine pulse with a change in velocity of 50.8
cm/sec (20 inches/sec)
Non-Operang 105G half-sine pulse with a change in velocity of
133cm/sec (52.5inches/sec)
Maximum Altude
Operang –15.2 to 3048 m (–50 to 10,000 )
Non-Operang –15.2 to 10,668 m (–50 to 35,000 )

DELL™ PRECISION™ TOWER 3620 , TOWER 3420 TECHNICAL GUIDEBOOK
19
POWER
NO T E : T h e s e f o r m fac to r s u l i z e a m o r e e  c i ent EP A p ow e r s u p p l y . D e l l reco m m e n d s o n l y U n i v e r s a l Power S uppl i e s ( U P S )
base d o n S i n e W a ve output f o r E P A P S U s, not an appro xi m a  o n o f a S i n e Wav e , S q u a r e W a v e , or quasi -Square W a v e . I f
yo u h a v e q u e s  o n s , p l e a se cont ac t t h e m a n u f a c t ure to con r m t h e o u t p u t t y p e .
TOWER 3620 TOWER 3420
Power Supply EPA Bronze EPA Gold EPA Bronze EPA Planum
Waage 290W High Eciency 365W High Eciency 180W High Eciency 240W High Eciency
AC input Voltage Range 100 – 240Vac 100 – 240Vac 100 – 240Vac 100-240Vac
AC input current (low ac range/
high AC range) 5.4A /2.7A 5.0A /2.5A 3.0A /1.5A 4.0A / 2.0A
AC input Frequency 50Hz/60Hz 50Hz/60Hz 50Hz/60Hz 50HZ/60HZ
AC holdup me (80% load) 16 mini sec 16 mini sec 16 mini sec 16 mini sec
Average Eciency (Energy Star
5.0 Compliant)
82 – 85 – 82% @ 20 –
50 – 100% load
87 – 90 – 87% @ 20 – 50
– 100% load
82 – 85 – 82% @ 20 – 50
– 100% load
90 – 92 – 89% @ 20 – 50
– 100% load
Typical Eciency (Acve PFC)
DC parameters
+12.0v output 12VA/14A;
12VB/16A
12VA/14A;
12VB/18A;
12VC/11A
12VA/12A;
12VB/14A
12VA/16.5A;
12VB/16A
+12.0v auxiliary output 1.67A 1.67A 2.5A 2.5A
Max total power 290W 365W 180W 240W
Max combined 12.0v power
(note: only if more than one 12v
rail)
290W 365W 180W 240W
BTUs/h (based on PSU max wa-
age) 989 BTU 1245 BTU 614 BTU 819 BTU
Power Supply Fan 80*25mm 80*25mm 60*25mm 60*25mm
Compliance
Erp Lot6 Tier 2 0.5wa require-
ment Yes Yes Yes Yes
Blue Angel Compliant No No No No
Climate Savers / 80Plus Compli-
ant Yes Yes Yes Yes
FEMP Standby Power Compliant Yes Yes Yes Yes
CECP Compliant No No No No

DELL™ PRECISION™ TOWER 3620 , TOWER 3420 TECHNICAL GUIDEBOOK
20
POWER
NO T E : T h e s e f o r m fac to r s u l i z e a m o r e e  c i ent EP A p ow e r s u p p l y . D e l l reco m m e n d s o n l y U n i v e r s a l Power S uppl i e s ( U P S )
base d o n S i n e W a ve output f o r E P A P S U s, not an appro xi m a  o n o f a S i n e Wav e , S q u a r e W a v e , or quasi -Square W a v e . I f
yo u h a v e q u e s  o n s , p l e a se cont ac t t h e m a n u f a c t ure to con r m t h e o u t p u t t y p e .
3.0v CMOS baery (Type and esmated baery life)
Brand Type Voltage Composion Life
PANASONIC CR-2032L/BE 3V Lithium Connuous Discharge Under 15 kΩ Load to 2.5V End-Voltage.
Temperature:20±2°C.
Inial life: 1183Hrs.
Aer storage 12 months life: 1133Hrs.
MITSUBISHI CR2032 3V Lithium Connuous Discharge Under 15 kΩ Load to 2.0V End-Voltage.
Temperature: 20±2°C.
Inial life: 940Hrs.
Aer storage 12 months life: 910Hrs.
Temperature: 0±2°C.
Inial life: 850Hrs.
Aer storage 12 months life: 820Hrs.
AUDIO—INTEGRATED
Integrated Realtek ALC3861 High Denion Audio plus ALC1003 AUDIO
AMPLIFIER TOWER 3620
High Denion Stereo support X
Number of channels 2
Number of Bits / Audio resoluon 16, 20, and 24-bit resoluon
Sampling rate (recording/playback) Support 44.1K/48K/96K/192 kHz sample rates
Signal to Noise Rao 110 dB DAC outputs, 104 dB for ADC inputs
Analog Audio X
Dolby Digital
THX
Digital out (S/PDIF)
Audio Jack Impedance
Microphone 64K ohm
Line-In 64K ohm
Line-Out 200 ohm
Headphone 2 ohm
Internal Speaker Power Rang (ALC1003 Audio Amplier)3 Wa(rms)/4 ohm per channel output