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Dell Precision Tower 3420, Owner'S Manual, Page: 28 / 53

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3

System Setup

System Setup enables you to manage your computer hardware and specify BIOS level options. From the 
System Setup, you can:

• Change the NVRAM settings after you add or remove hardware
• View the system hardware configuration
• Enable or disable integrated devices
• Set performance and power management thresholds
• Manage your computer security

 

Boot Sequence

Boot Sequence allows you to bypass the System Setup

‐

defined boot device order and boot directly to a 

specific device (for example: optical drive or hard drive). During the Power-on Self Test (POST), when the 
Dell logo appears, you can:

• Access System Setup by pressing F2 key
• Bring up the one-time boot menu by pressing F12 key

The one-time boot menu displays the devices that you can boot from including the diagnostic option. 
The boot-menu options are:

Table 1. Boot Sequence

Option

Description

Legacy Boot

• ST2000DM001–1ER164
• CD/DVD/CD-RW Drive
• Onboard NIC

UEFI Boot

Windows Boot Manager

Other options

• BIOS Setup
• BIOS Flash Update
• Diagnostics
• Intel (R) Management Engine BIOS Extension 

(MEBx)

• Change Boot Mode Settings

The boot sequence screen also displays the option to access the System Setup screen.

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Summary of Contents for Precision Tower 3420

Page 1: ...Dell Precision Tower 3420 Owner s Manual Regulatory Model D11S Regulatory Type D11S001 ...

Page 2: ...problem WARNING A WARNING indicates a potential for property damage personal injury or death Copyright 2015 Dell Inc All rights reserved This product is protected by U S and international copyright and intellectual property laws Dell and the Dell logo are trademarks of Dell Inc in the United States and or other jurisdictions All other marks and names mentioned herein may be trademarks of their res...

Page 3: ...he intrusion switch 13 Removing the memory module 13 Installing the memory module 14 Installing the optional PCIe SSD card 14 Removing the optional PCIe SSD card 16 Removing the expansion card 16 Installing the expansion card 17 Removing the power supply unit PSU 17 Installing the power supply unit PSU 18 Removing the power button 19 Installing the power button 19 Removing the Input Output I O pan...

Page 4: ...r settings 38 System and setup password 38 Assigning a system password and setup password 38 Deleting or changing an existing system and or setup password 39 Disabling a system password 39 4 Diagnostics 41 Enhanced Pre Boot System Assessment ePSA diagnostics 41 Troubleshooting your computer 42 Power LED diagnostics 42 Beep code 43 Error messages 43 5 Specifications 47 6 Contacting Dell 53 4 ...

Page 5: ...epairs as authorized in your product documentation or as directed by the online or telephone service and support team Damage due to servicing that is not authorized by Dell is not covered by your warranty Read and follow the safety instructions that came with the product CAUTION To avoid electrostatic discharge ground yourself by using a wrist grounding strap or by periodically touching an unpaint...

Page 6: ...e cover CAUTION Before touching anything inside your computer ground yourself by touching an unpainted metal surface such as the metal at the back of the computer While you work periodically touch an unpainted metal surface to dissipate static electricity which could harm internal components Turning off your computer CAUTION To avoid losing data save and close all open files and exit all open prog...

Page 7: ...er working inside your computer After you complete any replacement procedure ensure that you connect any external devices cards and cables before turning on your computer 1 Replace the cover CAUTION To connect a network cable first plug the cable into the network device and then plug it into the computer 2 Connect any telephone or network cables to your computer 3 Connect your computer and all att...

Page 8: ...rocedures in this document require the following tools Small flat blade screwdriver Phillips screwdriver Small plastic scribe Removing the cover 1 Follow the procedure in Before Working Inside Your Computer 2 To remove the cover a Slide the release latch to unlock the cover 1 b Slide the cover toward the back of the computer 2 c Lift the cover from the computer 3 8 ...

Page 9: ...ention tabs and release the front bezel 1 b Lift the front bezel to remove it from the computer 2 Installing the front bezel 1 Insert the tabs on the bezel into the slots on the computer 2 Press the bezel until the tabs clicks into place 3 Install the cover 4 Follow the procedure in After Working Inside Your Computer Removing the hard drive assembly 1 Follow the procedure in Before Working Inside ...

Page 10: ...s on the hard drive 1 b Lift the hard drive out of the hard drive bracket 2 Installing the hard drive assembly 1 Insert the hard drive into the hard drive bracket 2 Press the securing brackets and slide the hard drive assembly into the bay 3 Connect the data cable and the power cable to the hard drive 4 Install the cover 5 Follow the procedure in After Working Inside Your Computer 10 ...

Page 11: ...ease the optical drive a Remove the hard drive connector cables from the optical drive latch 1 b Slide the blue latch to the unlock position 2 4 To remove the optical drive a Hold the blue latch 1 lift the optical drive cage and disconnect the cables from the optical drive 2 b Lift the optical drive cage away from the computer 3 11 ...

Page 12: ... optical drive from the optical drive cage 3 Installing the optical drive 1 Slide the optical drive into the optical drive cage 2 Align the tabs on the optical cage with the slots on the computer 3 Lower the optical drive cage into the computer and lock the latch 4 Connect the data and power cables to the optical drive 5 Install the a front bezel 12 ...

Page 13: ...er 3 Installing the intrusion switch 1 Insert the intrusion switch into the slot on the chassis 2 Connect the intrusion switch cable to the system board 3 Install the a heat sink fan cover b cover 4 Follow the procedure in After Working Inside Your Computer Removing the memory module 1 Follow the procedure in Before Working Inside Your Computer 2 Remove the a cover b hard drive c optical drive 3 T...

Page 14: ...bs click into place 4 Install the a optical drive b hard drive c cover 5 Follow the procedure in After Working Inside Your Computer Installing the optional PCIe SSD card NOTE The PCIe SSD card is shipped with the following components 1 PCIe SSD card 2 Thermal pad 3 Screw 1 Follow the procedure in Before Working Inside Your Computer 2 Remove the a cover b hard drive c optical drive 3 Peel the adhes...

Page 15: ...n the computer 1 and peel the adhesive tape pink from the rubber 2 5 To install the SSD card a Connect the SSD card to the connector on the system board 1 b Tighten the screw to secure the SSD card to the system board 2 15 ...

Page 16: ...tem board 4 Disconnect the PCIe SSD card from the connector on the system board 5 Remove the rubber from the system board Removing the expansion card 1 Follow the procedure in Before Working Inside Your Computer 2 Remove the cover 3 To remove the expansion card a Pull the metal tab to open the expansion card latch 1 b Pull the tab forward 2 and pull the expansion card from the connector on the com...

Page 17: ...nto place 4 Install the cover 5 Follow the procedure in After Working Inside Your Computer Removing the power supply unit PSU 1 Follow the procedure in Before Working Inside Your Computer 2 Remove a cover b front bezel c hard drive d optical drive e heatsink fan cover 3 To release the PSU a Disconnect the power cable from the system board 1 2 b Unroute the power cables from the retention clips on ...

Page 18: ... PSU away from the computer 3 Installing the power supply unit PSU 1 Slide the PSU toward the back of the computer until it clicks into place 2 Tighten the screws to secure the PSU to the computer 3 Route the PSU cables through the retention clips 4 Connect the PSU cables to their connectors on the system board 5 Install the a heat sink fan cover 18 ...

Page 19: ...emove the power button a Disconnect the power switch cable from the system board 1 b Press the power switch retention tabs and remove it from the chassis 2 3 Installing the power button 1 Slide the power switch module into the slot on the chassis until it clicks into place 2 Connect the power switch cable to the connector on the system board 3 Install the a optical drive b hard drive c front bezel...

Page 20: ...l on the chassis and slide it until it clicks into place 2 Tighten the screws to secure the I O panel to the chassis 3 Install the a front bezel b cover 4 Follow the procedure in After Working Inside Your Computer Removing the system fan 1 Follow the procedure in Before Working Inside Your Computer 2 Remove the a cover b front bezel c hard drive d optical drive 3 To remove the system fan a Disconn...

Page 21: ...ystem board 4 Install the a optical drive b hard drive c front bezel d cover 5 Follow the procedure in After Working Inside Your Computer Removing the heat sink fan cover 1 Follow the procedure in Before Working Inside Your Computer 2 Remove the cover 3 To remove the fan duct a Holding the touch points pull the fan duct bracket to release the fan duct 1 b Lift the fan duct away from the computer 2...

Page 22: ...Working Inside Your Computer Removing the heat sink assembly 1 Follow the procedure in Before Working Inside Your Computer 2 Remove the a cover b front bezel c hard drive d optical drive e heat sink fan cover 3 To remove the heat sink assembly a Disconnect the heat sink cable from the system board 1 b Loosen the captive screws that secure the heat sink assembly and lift it away from the computer 2...

Page 23: ... hard drive d front bezel e cover 5 Follow the procedure in After Working Inside Your Computer Removing the processor 1 Follow the procedure in Before Working Inside Your Computer 2 Remove the a cover b front bezel c hard drive d heat sink 3 To remove the processor a Release the socket lever by pushing the lever down and out from under the tab on the processor shield 1 b Lift the lever upward and ...

Page 24: ...it under the retention screw 5 Lower the socket lever and push it under the tab to lock it 6 Install the a heat sink b hard drive c front bezel d cover 7 Follow the procedure in After Working Inside Your Computer Removing the system board 1 Follow the procedure in Before Working Inside Your Computer 2 Remove the a cover b front bezel c hard drive d optical drive e heat sink fan cover f heat sink g...

Page 25: ...old the system board by its edges and angle it toward the back of the computer 2 Lower the system board into the computer until the connectors at the back of the system board align with the slots on the back wall of the computer and the screw holes on the system board align with the standoffs on the computer 3 Tighten the screws that secure the system board to the computer 4 Connect the cables to ...

Page 26: ...edure in After Working Inside Your Computer System board components Figure 1 Components of the system board 1 PCI Express x16 Gen 3 slot 2 PCI Express x4 slot 3 USB 2 0 with network connector 4 USB 3 0 connector 5 PS2 keyboard mouse connectors 6 serial port connector 7 2 x DisplayPort connector 8 HDMI connector 9 Line Out connector 10 P2 power connector 26 ...

Page 27: ...21 system fan connector 22 audio connector 23 USB 2 0 connector 24 USB 3 0 connector 25 8 pin power connector 26 SATA 0 connector Blue color 27 SATA 2 connector Black color 28 password reset jumper 29 service mode jumper connector 30 speaker connector 31 SATA power connector 32 internal USB CLINK header for Intel WiFi add in cards 33 SATA 1 connector White color 34 CMOS coin cell battery 35 Debug ...

Page 28: ...ce for example optical drive or hard drive During the Power on Self Test POST when the Dell logo appears you can Access System Setup by pressing F2 key Bring up the one time boot menu by pressing F12 key The one time boot menu displays the devices that you can boot from including the diagnostic option The boot menu options are Table 1 Boot Sequence Option Description Legacy Boot ST2000DM001 1ER164...

Page 29: ... till you view the main screen Pressing Esc in the main screen displays a message that prompts you to save any unsaved changes and restarts the system F1 Displays the System Setup help file System Setup options NOTE Depending on your computer and its installed devices the items listed in this section may or may not appear Table 3 General Option Description System Information This section lists the...

Page 30: ...p Serial Port Identifies and defines the serial port settings You can set the serial port to Disabled COM1 Default COM2 COM3 COM4 NOTE The operating system may allocate resources even if the setting is disabled SATA Operation Allows you to configure the internal SATA hard drive controller The options are Disabled AHCI RAID On Default Drives Allows you to configure the SATA drives on board The opti...

Page 31: ... 6 Thunderbolt Allows you to enable or disable Thunderbolt device support capability The options are Enabled Default No Security User Configuration Secure Connect Display Port Only USB PowerShare Allows you to enable or disable USB PowerShare Enable USB PowerShare This option is disabled by default Audio Allows you enable or disable the audio feature Enable Audio Default Enable Microphone Enable I...

Page 32: ...in Password Changes is selected TPM 1 2 Security Allows you to control whether the Trusted Platform Module TPM is visible to the operating system The options are TPM On Default PPI Bypass for Enable Commands PPI Bypass for Disable Commands Disabled Enabled Computrace R Allows you to activate or disable the optional Computrace software The options are Deactivate Default Disable Activate Chassis Int...

Page 33: ... options are PK KEK db dbx Table 8 Intel Software Guard Extensions Option Description Intel SGX Enable Allows you to enable or disable Intel Software Guard Extensions The options are Disabled Default Enabled Enclave Memory Size Allows you to change the Intel Software Guard Extensions Enclave Reserve Memory size The options are 32 MB 64 MB 128 MB Table 9 Performance Option Description Multi Core Su...

Page 34: ...s disabled Table 10 Power management Option Description AC Recovery Specifies how the computer will respond when AC power is applied after a AC power loss You can set the AC Recovery to Power Off Default Power On Last Power State Auto On Time Allows you to set the time at which the computer must turn on automatically The options are Disabled Default Every Day Weekdays Select Days Deep Sleep Contro...

Page 35: ...fault MEBx Hotkey Allows you to specify whether the MEBx Hotkey function should be enabled when the system boots This option is enabled by default Keyboard Errors Specifies whether keyboard related errors are reported when it boots This option is enabled by default Table 12 Virtualization support Option Description Virtualization This option specifies whether a Virtual Machine Monitor VMM can util...

Page 36: ...resses The options are Static IP DNS default Server Name Allows you to specify the Server Name of the server Server IP Address Specifies the primary static IP address of the Cloud Desktop Server with which the client software communicates The default setting is 255 255 255 255 Server Port Allows you to specify the primary IP port of the Cloud Desktop with which the client software communicates The...

Page 37: ...duct Category of your computer 5 Choose the Product Type from the list 6 Select your computer model and the Product Support page of your computer appears 7 Click Get drivers and click View All Drivers The Drivers and Downloads page opens 8 On the Drivers and Downloads screen under the Operating System drop down list select BIOS 9 Identify the latest BIOS file and click Download File You can also a...

Page 38: ...puter CAUTION The password features provide a basic level of security for the data on your computer CAUTION Anyone can access the data stored on your computer if it is not locked and left unattended NOTE Your computer is shipped with the system and setup password feature disabled Assigning a system password and setup password You can assign a new System Password and or Setup Password or change an ...

Page 39: ...ot delete or change an existing System or Setup password if the Password Status is Locked To enter the System Setup press F2 immediately after a power on or reboot 1 In the System BIOS or System Setup screen select System Security and press Enter The System Security screen is displayed 2 In the System Security screen verify that Password Status is Unlocked 3 Select System Password alter or delete ...

Page 40: ...xt time it boots 6 Connect the computer to the electrical outlet and power on the computer 7 Power off the computer and disconnect the power cable from the electrical outlet 8 Remove the cover 9 Replace the PSWD jumper on the system board 10 Install the cover 11 Follow the procedures in After Working on Your Computer 12 Power on the computer 13 Go to the system setup and assign a new system or set...

Page 41: ...ons to provide extra information about the failed device s View status messages that inform you if tests are completed successfully View error messages that inform you of problems encountered during testing CAUTION Use the system diagnostics to test only your computer Using this program with other computers may cause invalid results or error messages NOTE Some tests for specific devices require us...

Page 42: ...se then repeats Table 18 Power LED diagnostics Amber LED state White LED state Description off off system is OFF off blinking system is in sleep state blinking off power supply unit PSU failure steady off PSU is working but failed to fetch code off steady system is ON Amber LED state Description 2 1 system board failure 2 2 system board PSU or PSU cabling failure 2 3 system board memory or CPU fai...

Page 43: ...act Dell Technical Support The computer failed to complete the boot routine three consecutive times for the same error Contact Dell and report the checkpoint code nnnn to the support technician Alert Security override Jumper is installed The MFG_MODE jumper has been set and AMT Management features are disabled until it is removed Attachment failed to respond The floppy or hard drive controller can...

Page 44: ...ation error The hard drive failed initialization Hard disk drive controller failure The hard drive failed initialization Hard disk drive failure The hard drive failed initialization Hard disk drive read failure The hard drive failed initialization Invalid configuration information please run SETUP program The computer configuration information does not match the hardware configuration Invalid Memo...

Page 45: ...No timer tick interrupt A chip on the system board might be malfunctioning Non system disk or disk error The floppy disk in drive A does not have a bootable operating system installed on it Either replace the floppy disk with one that has a bootable operating system or remove the floppy disk from drive A and restart the computer Not a boot diskette The operating system is trying to boot to a flopp...

Page 46: ...er is operating outside of normal specifications It is advisable to immediately back up your data and replace your hard drive by calling your support desk or Dell During initial startup the drive detected possible error conditions When your computer finishes booting immediately back up your data and replace your hard drive for installation procedures see Adding and Removing Parts for your computer...

Page 47: ...19 Processor Feature Specification Processor type Intel Core i3 series Intel Core i5 series Intel Core i7 series Intel Xeon E3 Total cache Up to 8 MB cache depending on processor type Table 20 Memory Feature Specification Type DDR4 NECC and ECC Speed 2133 MHz Connectors Two DIMM slots Capacity 4 GB 8 GB and 16 GB Minimum memory 4 GB Maximum memory 64 GB Table 21 Video Feature Specification Integra...

Page 48: ...grated I O APIC capability with 24 interrupts BIOS chip NVRAM 16 MB Table 25 Expansion bus Feature Specification BustType PCIe gen3 x16 USB 2 0 and USB 3 0 Bus speed PCI Express x4 slot each direction speed 4GB s x16 slot each direction speed 16 GB s SATA 1 5 Gbps 3 0 Gbps and 6 Gbps Table 26 Cards Feature Specification PCI Mini Tower Up to one full height card Small Form Factor None PCI Express x...

Page 49: ... Back panel One line out connector Network adapter One RJ 45 connector Serial One 9 pin connector 16550 C compatible USB 2 0 Front panel two Back panel two USB 3 0 Front panel two Back panel four HDMI out One Video 15 pin VGA connector two 20 pin DisplayPort connectors NOTE Available video connectors may vary based on the graphics card selected Table 29 Internal connectors Feature Specification PC...

Page 50: ... two 20 pin connector Mini Tower thermal sensor One 2 pin connector Processor One 1150 pin connector Processor fan One 4 pin connector Service mode jumper One 2 pin connector Password clear jumper One 2 pin connector RTC reset jumper One 2 pin connector Internal speaker One 4 pin connector Intruder connector One 3 pin connector Power connector One 8 pin one 4 pin Table 30 Controls and lights Featu...

Page 51: ...tor at the back of the computer and the electrical outlet Table 31 Power Power Wattage Maximum heat dissipation Voltage Mini Tower 290 W 989 00 BTU hr 100 V AC to 240 V AC 50 Hz to 60 Hz 5 4 A 365 W EPA 1245 BTU hr 100 V AC to 240 V AC 50 Hz to 60 Hz 5 0 A Small Form Factor 180 W 240 W EPA 614 819 BTU hr 100 V AC to 240 V AC 50 Hz to 60 Hz 4 0 A NOTE Heat dissipation is calculated by using the pow...

Page 52: ...ting 20 percent to 80 percent non condensing Storage 5 percent to 95 percent non condensing Maximum vibration Operating 0 26 GRMS Storage 2 20 GRMS Maximum shock Operating 40 G Storage 105 G Altitude Operating 15 2 m to 3048 m 50 to 10 000 ft Storage 15 20 m to 10 668 m 50 ft to 35 000 ft Airborne contaminant level G1 or lower as defined by ANSI ISA S71 04 1985 52 ...

Page 53: ...upport and service options Availability varies by country and product and some services may not be available in your area To contact Dell for sales technical support or customer service issues 1 Go to Dell com support 2 Select your support category 3 Verify your country or region in the Choose a Country Region drop down list at the bottom of the page 4 Select the appropriate service or support lin...

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