Dell OptiPlex 990 Desktop User manual

TECHNICAL GUIDEBOOK—
INSIDE THE OPTIPLEX 990
TM
DELL
OPTIPLEX 990
TM

TABLE OF CONTENTS
OVERVIEW
Mini Tower Computer (MT) View 3-4
Desktop Computer (DT) View 5-6
Small Form Factor Computer (SFF) View 7-8
MARKETING SYSTEM CONFIGURATIONS
Operating System, Chipset 11
Processor 12
Memory 13
Drives and Removable Storage, System Expansion Slots 14-15
Graphics/Video Controller 16
External Ports/Connectors 16
Communications—Network Adapter (NIC), Wireless 17
Audio and Speakers, Keyboard and Mouse 17
Security, Software, Environmental, All-in-One Stands & Mounts, Service and Support 18
DETAILED ENGINEERING SPECIFICATIONS
System Dimensions (Physical) 19
System Expansion Slots 19
System Level Environmental and Operating Conditions 20
Power 21-22
Audio 23
Communications 23-27
Graphics/Video Controller 28-30
Hard Drives 31-39
Optical Drive 40-42
BIOS Defaults 44
Chassis Enclosure and Ventilation Requirements 45
Acoustic Noise Emission Information 47-50
Ultra Small Form Factor Computer (USFF) View 9-10
Media Card Reader 43
Environmental Attributes 46

DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK —VERSION 1.5
3
MINI TOWER COMPUTER (MT) VIEW
FRONT VIEW
1 Power Button, Power
Light
6 Optical Drive (optional)
2 Optical Drive Bay
(optional)
7 Optical Drive Eject Button
3 Headphone Connector 8 USB 2.0 Connectors (4)
4 Microphone Connector 9 Drive Activity Light
5 Diagnostic Lights (4)
BACK VIEW
10 Power Supply Diagnostic
Light
14 Expansion Card Slots(4)
12 Power Connectors 16 Padlock Ring
13 Back Panel Connectors
11 Power Supply Diagnostic
Button
15 Security Cable Slot
1 Mouse Connector 7 Keyboard Connector
2 Link Integrity Light 8 USB Connectors (6)
3 Network Connector 9 DisplayPort Connector
4 Network Activity Light 10 VGA Connector
BACK PANEL CONNECTORS
5 Serial Connector 11 Line-in/Microphone
Connector
6 Line-out Connector

DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK —VERSION 1.5
4
Number Name Number Name
1 Internal Speaker Connector (INT_SPKR) 13 PCI Connector(SLOT3)
2 Front IO Connector (FRONTPANEL) 14 PCI-e 4x Connector(SLOT4)
3 Thermal Sensor Connector(THRM_2) 15 Intrusion Switch Connector
(INTRUDER)
4 SATA 0 Connector(SATA0) 16 System Fan Connector (FAN_HDD)
5 SATA 1 Connector(SATA1) 17 P2 Power Connector
(12V_PWRCONN)
6 SATA 2 Connector(SATA2) 18 Processor Connector (N/A)
7 SATA 3 Connector(SATA3) 19 CPU fan Connector (FAN_CPU)
8 Internal USB Connector (INT_USB) 20 Memory Connectors(DIMM1, DIMM2,
DIMM3, DIMM4)
9 Buzzer (BEEP) 21 Power Switch Connector (PWR_SW)
10 LPC Debug Connector (LPC_DEBUG) 22 Battery Connector (BATTERY)
11 PCI-e 16x Connector(SLOT1) 23 P1 Power Connector (POWER)
12 PCI-e 1x Connector(SLOT2)
MT System Board Components

DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK —VERSION 1.5
5
DESKTOP COMPUTER (DT) VIEW
FRONT VIEW
1 Optical Drive 5 Microphone Connector
2 Optical Drive Eject Button 6 Headphone Connector
3 Power Button, Power
Light
7 Drive Activity Light
4 USB Connectors (4) 8 Diagnostic Lights (4)
BACK VIEW
9 Padlock Ring 13 Expansion Card Slots(4)
10 Security Cable Slot 14 Power Supply Diagnostic
Light
11 Power Connectors 15 Power Supply Diagnostic
Button
12 Back Panel Connectors
1 Mouse Connector 7 Keyboard Connector
2 Link Integrity Light 8 USB Connectors (6)
3 Network Connector 9 DisplayPort Connector
4 Network Activity Light 10 VGA Connector
BACK PANEL CONNECTORS
5 Serial Connector 11 Line-in/Microphone
Connector
6 Line-out Connector

DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK —VERSION 1.5
6
Number Name Number Name
1 Internal Speaker Connector
(INT_SPKR)
13 PCI-e 1x Connector(SLOT2)
2 Front IO Connector (FRONTPANEL) 14 Intrusion Switch Connector
(INTRUDER)
3 Thermal Sensor Connector(THRM_2) 15 Thermal Sensor Connector(THRM_1)
4 SATA 0 Connector(SATA0) 16 System Fan Connector (FAN_HDD)
5 SATA 1 Connector(SATA1) 17 P2 Power Connector
(12V_PWRCONN)
6 SATA 2 Connector(SATA2) 18 Processor Connector (N/A)
7 Internal USB Connector (INT_USB) 19 CPU Fan Connector (FAN_CPU)
8 PCI-e 16x Connector(SLOT1) 20 Memory Connectors(DIMM1, DIMM2,
DIMM3, DIMM4)
9 PCI-e 4x Connector(SLOT4) 21 Power Switch Connector (PWR_SW)
10 Buzzer (BEEP) 22 Battery Connector (BATTERY)
11 LPC Debug Connector (LPC_DEBUG) 23 P1 Power Connector (POWER)
12 PCI Connector(SLOT3)
DT System Board Components

DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK —VERSION 1.5
7
SMALL FORM FACTOR COMPUTER (SFF) VIEW
FRONT VIEW
1 Optical Drive 5 Microphone Connector
2 Optical Drive Eject Button 6 Headphone Connector
3 Power Button, Power
Light
7 Diagnostic Lights (4)
4 USB 2.0 Connectors (4) 8 Drive Activity Light
BACK VIEW
9 Padlock Ring 13 Power Supply Diagnostic
Light
10 Security Cable Slot 14 Back Panel Connectors
11 Power Connectors 15 Expansion Card Slots(2)
12 Power Supply Diagnostic
Button
1 Mouse Connector 7 Keyboard Connector
2 Serial Connector 8 DisplayPort Connector
3 Link Integrity Light 9 VGA Connector
4 Network Connector 10 USB Connectors (6)
BACK PANEL CONNECTORS
5 Network Activity Light 11 Line-in/Microphone
Connector
6 Line-out Connector

DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK —VERSION 1.5
8
Number Name Number Name
1 P1 power Connector (POWER) 12 LPC debug Connector (LPC_DEBUG)
2 System fan Connector (FAN_HDD) 13 Battery Connector (BATTERY)
3 Internal Speaker Connector (INT_SPKR) 14 P2 Power Connector
(12V_PWRCONN)
4 Buzzer (BEEP) 15 Processor Connector (N/A)
5 PCI-e 4x Connector(SLOT2) 16 CPU Fan Connector (FAN_CPU)
6 PCI-e 16x Connector(SLOT1) 17 Power Switch Connector (PWR_SW)
7 SATA 2 Connector(SATA2) 18 Memory Connector(DIMM3)
8 SATA 1 Connector(SATA1) 19 Memory Connector(DIMM1)
9 SATA 0 Connector(SATA0) 20 Memory Connector(DIMM4)
10 Front IO Connector (FRONTPANEL) 21 Memory Connector(DIMM2)
11 Intrusion Switch Connector (INTRUDER)
SFF System Board Components

DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK —VERSION 1.5
9
ULTRA SMALL FORM FACTOR COMPUTER (USFF) VIEW
FRONT VIEW
1 Optical Drive 6 Headphone Connector
2 Optical Drive Eject Button 7 Microphone Connector
3 Power Button, Power
Light
8 USB Connectors (2)
4 Drive Activity Light
5 Diagnostic Lights (4)
BACK VIEW
10 Wi-Fi Antenna (optional) 17 Line-in/ Microphone
Connector
11 Network Activity Light 18 DisplayPort Connector
12 Captive Thumbscrew 19 VGA Connector
13 Padlock Ring 20 Serial Connector
14 Security Cable Slot 21 USB Connectors (5)
15 Power Connector 22 Network Connector
16 Line-Out Connector 23 Link Integrity Light

DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK —VERSION 1.5
10
Number Name Number Name
1 Front Panel Connector (FRONTPANEL) 10 SATA 1 Connector(SATA_1)
2 Memory Connector(DIMM_2) 11 SATA 0 Connector(SATA_0)
3 Memory Connector(DIMM_1) 12 P1 Power Connector(POWER1)
4 CPU Fan Connector (FAN_CPU) 13 HDD-ODD Power Connector
(HDD_ODD_POWER)
5 Internal Speaker Connector (INT_SPKR) 14 Intrusion Switch Connector
(INTRUDER)
6 Buzzer (BEEP) 15 LPC Debug Connector (LPC_DEBUG)
7 Front IO Connector (F_USB_AUDIO) 16 P2 Power Connector(12V_PWRCONN)
8 System Fan Connector (FAN_HDD) 17 Processor Connector (N/A)
9 Mini-PCI Socket (PCIE_MINICARD) 18 Battery Connector (BATTERY)
USFF System Board Components

DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK —VERSION 1.5
11
MARKETING SYSTEM CONFIGURATIONS
NOTE: Oerings may vary by country. For more information regarding the configuration of your computer, click
Start>Help and Support and select the option to view information about your computer.
OPERATING SYSTEM
MT DT SFF USFF
Windows Vista® operating system
Windows Vista® Home Basic SP2 (32 bits),
Windows Vista® Business SP2 (32 and 64 bit),
Windows Vista® Ultimate SP2 (32 bit)
Windows XP® operating system Basic Driver support only via Dell.com
Other FreeDOS for (N-series),
Ubuntu® Linux version 10.10 (China only)
OS Media Support (optional) X X X X
Windows 7® operating system
Microsoft® Windows 7® Home Basic (32 and 64 bit),
Microsoft® Windows 7® Home Basic SP1 (32 and 64 bit),
Microsoft® Windows 7® Home Premium (32 and 64 bit),
Microsoft® Windows 7® Professional (32 and 64 bit),
Microsoft® Windows 7® Ultimate (32 and 64 bit),
CHIPSET
MT DT SFF USFF
Chipset Intel Q67 Express Chipset
Non-volatile memory on chipset
BIOS Configuration SPI (Serial Peripheral Interface) 64Mbit (8MB) &16Mbit(2MB)located at SPI_FLASH on chipset
TPM 1.2 Security Device (Trusted Platform Module)118KB located at TPM1.2 on chipset
Non-TPM Available in select countries
NIC EEPROM LOM configuration contained within SPI_FLASH – no dedicated
LOM EEPROM

DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK —VERSION 1.5
12
PROCESSOR
NOTE: Global Standard Products (GSP) are a subset of Dell’s relationship products that are managed for availability and synchro-
nized transitions on a worldwide basis. They ensure the same platform is available for purchase globally. This allows customers to
reduce the number of configurations managed on a worldwide basis, thereby reducing their costs. They also enable companies
to implement global IT standards by locking in specific product configurations worldwide. The following GSP processors identi-
fied below will be made available to Dell customers.
NOTE: Processor numbers are not a measure of performance. Processor availability subject to change and may vary by region/
country.
MT DT SFF USFF
Intel® Quad Core Processors
Intel® Core™ i7 2600 / 3.40GHz, 8M, VT-x, VT-d, TXT
(vPro™), 95W X-GSP X-GSP X-GSP
Intel® Core™ i7 2600S / 2.80GHz, 8M, VT-x, VT-d, TXT
(vPro™), 65W X-GSP
Intel® Core™ i5 2500 / 3.30GHz, 6M, VT-x, VT-d, TXT
(vPro™), 95W X-GSP X-GSP X-GSP
Intel® Core™ i5 2500S / 2.70GHz, 6M, VT-x, VT-d, TXT
(vPro™), 65W X-GSP
Intel® Core™ i5 2400 / 3.10GHz, 6M, VT-x, VT-d, TXT
(vPro™), 95W X-GSP X-GSP X-GSP
Intel® Core™ i5 2400S / 2.50GHz, 6M, VT-x, VT-d, TXT
(vPro™), 65W X-GSP
Intel® Dual Core Processors
Intel® Core™ i3 2120 / 3.30GHz, 3M, VT-x, 65W XXXX
Intel® Core™ i3 2100 / 3.10GHz, 3M, VT-x, 65W XXXX
Intel® Pentium™ G850 / 3.10GHz, 3M, VT-x, 65W XXXX
Intel® Pentium™ G840 / 3.10GHz, 3M, VT-x, 65W XXXX
Intel® Pentium™ G620 / 3.10GHz, 3M, VT-x, 65W XXXX

DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK —VERSION 1.5
13
MEMORY
NOTE: Memory modules should be installed in pairs of matched memory size, speed, and technology. If the memory modules
are not installed in matched pairs, the computer will continue to operate, but with a slight reduction in performance. The entire
16GB memory range is available to 64-bit operating systems.
1 The total amount of available memory will be less than 4GB. The amount less depends on the actual system configuration. To fully utilize 4GB or
more of memory requires a 64-bit enabled processor and 64-bit operating system.
MT DT SFF USFF
Type: DDR3 Synch DRAM Non-ECC Memory 1333MHz
DIMM Slots 4 4 4 2
DIMM Capacities Up to 4GB Up to 4GB Up to 4GB Up to 4GB
Minimum Memory 1GB 1GB 1GB 1GB
Maximum System Memory 16GB116GB116GB18GB1
Memory configurations
16GB1DDR3, 1333MHz, (4 DIMM) X X X
8GB1DDR3, 1333MHz, (2 DIMM) X X X X
4GB1DDR3, 1333MHz, (2 DIMM) X X X
4GB1DDR3, 1333MHz, (1 DIMM) X
3GB DDR3, 1333MHz, (2 DIMM) X X X X
2GB DDR3, 1333MHz, (1 DIMM) X
1GB DDR3, 1333MHz, (1 DIMM) X X X X
2GB DDR3, 1333MHz, (2 DIMM) X X X

DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK —VERSION 1.5
14
DRIVES AND REMOVABLE STORAGE
MT DT SFF USFF
Bays:
5.25-inch Optical Bay Supported (External) 2 1 1 1
Optical Drives Supported (maximum) 2 1 1 (slim-line) 1 (slim-line)
Hard Drive Bay Supported (Internal) 2 1 1 1
Hard Drives Supported 3.5”/2.5” (maximum) 2/2 1/2 1/2 0/1
Interface:
SATA 2.0 2 1 1 0
SATA 3.0 2 2 2 2
3.5” Hard Drives:
1TB1SATA 7200 RPM HDD X X X
500GB1SATA 7200 RPM HDD X X X
320GB1SATA 7200 RPM HDD X X X
250GB1SATA 7200 RPM HDD X X X
2.5” Hard Drives: (Hybrid drive includes 4GB NAND Flash for greater performance)
128GB1SATA Solid State Drive X X X X
500GB1SATA 7200 RPM Hybrid HDD X X X X
320GB1SATA 7200 RPM Opal SED HDD X X X X
500GB1SATA 7200 RPM HDD X X X X
250GB1SATA 7200 RPM HDD X X X X
RAID 1 Data Protection: (includes two matching capacity/speed hard drives)
1TB1SATA 7200 RPM HDD (3.5”) X
500GB1SATA 7200 RPM HDD (3.5”) X
320GB1SATA 7200 RPM HDD (3.5”) X
250GB1SATA 7200 RPM HDD (3.5”) X
500GB1SATA 7200 RPM Hybrid HDD (2.5”) X X X
500GB1SATA 7200 RPM HDD (2.5”) X X X
250GB1SATA 7200 RPM HDD (2.5”) X X X

DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK —VERSION 1.5
15
DRIVES AND REMOVABLE STORAGE
1For hard drives, GB means 1 billion bytes; actual capacity varies with preloaded material and operating environment and will be less.
2Discs burned with this drive may not be compatible with some existing drives and players; using DVD+R media provides maximum compatibility.
3DVD-ROM drives may have write-capable hardware that has been disabled via firmware modifications.
SYSTEM EXPANSION SLOTS
NOTE: See Detailed Engineering Specifications for supported voltage, maximum wattage and card dimensions.
NOTE: Add in card location and priority: PCI: 1394; PCIe x16: GFX, USB 3.0, Serial, Parallel/Serial, NIC, Wireless; PCIe x4: GFX,
USB 3.0, Serial, Parallel/Serial, NIC, Wireless; PCIe x1: USB 3.0, Serial, Parallel/Serial, NIC, Wireless
NOTE: Dell 19 in 1 Media Card Reader (MCR) is supported via a F5 to F3 bay converter on the MT and DT and may require a slim
line optical drive depending on selectable configuration. MCR is not available on the SFF and USFF.
MT DT SFF USFF
PCI Slot 1 1 0 0
PCIe x16 Slot 1 1 1 0
PCIe x16 (wired x4) Slot 1 1 1 0
PCIe x1 Slot 1 1 0 0
Serial ATA (SATA) connectors 4 3 3 2
Half mini-PCIe connector 0 0 0 1
MT DT SFF USFF
RAID 0 Performance: (includes two matching capacity/speed hard drives)
1TB1SATA 7200 RPM HDD (3.5”) X
500GB1SATA 7200 RPM HDD (3.5”) X
320GB1SATA 7200 RPM HDD (3.5”) X
250GB1SATA 7200 RPM HDD (3.5”) X
500GB1SATA 7200 RPM Hybrid HDD (2.5”) X X X
500GB1SATA 7200 RPM HDD (2.5”) X X X
250GB1SATA 7200 RPM HDD (2.5”) X X X
Optical Drive: (SFF/USFF require slim-line optical drive)
Blu-ray Writer SATA 1.5Gbit/s X X X X
DVD+/-RW2 SATA 1.5Gbit/s X X X X
DVD-ROM3 SATA 1.5Gbit/s X X X X
Media Card Reader: (requires slim line optical)
Dell 19 in 1 Media Card Reader X X

DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK —VERSION 1.5
16
GRAPHICS/VIDEO CONTROLLER
NOTE: MT supports full height (FH) cards and DT and SFF supports low profile (LP) cards.
EXTERNAL PORTS/CONNECTORS
NOTE: MT supports full height (FH) cards and DT and SFF supports low profile (LP) cards. See chassis diagrams section for port/
connector locations
MT DT SFF USFF
Intel HD Graphics [with Celeron/Pentium class CPU-GPU com-
bo]
Intel HD Graphics 2000[with iCore Dual/Quad core class CPU-
GPU combo]
Integrated on CPU
Enhanced Graphic/Video Options
1GB AMD RADEON HD 6670 with DP, DVI and VGA
1GB AMD RADEON HD 6450 with DP and DVI Optional card
512MB AMD RADEON HD 6350 with dual DVI or dual VGA
(adapters convert DMS-59 connector to dual DVI or dual VGA) Optional card
Optional
card
MT DT SFF USFF
USB 2.0 (1 internal on MT and DT) 4 Front, 6 Rear 2 Front, 5
Rear
Serial 1 Rear
Parallel/2nd Serial via optional PCIex1 card Optional FH
card
2nd Serial via optional PCIex1 card Optional LP card
Network Connector (RJ-45) 1 Rear
PS/2 2 Rear
1394 Controller via optional PCI card Optional FH
card
USB 3.0 via optional PCIex1 card Optional FH
card Optional LP card
Video:
VGA 1 Rear
DisplayPort (1.1a) 1 Rear
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
Optional LP
card
Parallel via optional PCIex1 card Optional LP card, available in
Q3 2011

DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK —VERSION 1.5
17
MT DT SFF USFF
Intel® 82579LM Gigabit1Ethernet LAN 10/100/1000 (Remote
Wake Up, PXE support and Intel Active Management Technol-
ogy support)
Integrated on system board
Broadcom NetXtreme 10/100/1000 PCIe Gigabit Networking
Card Optional card
1This term does not connote an actual operating speed of 1 Gb/sec. For high speed transmission, connection to a Gigabit Ethernet server and
network infrastructure is required.
MT DT SFF USFF
Dell Wireless 1520 PCIe WLAN card (802.11n) Optional card
Dell Wireless 1520 half mini-PCIe WLAN card (802.11n) Optional
COMMUNICATIONS – WIRELESS
NOTE: MT supports full height (FH) cards and DT and SFF supports low profile (LP) cards.
MT DT SFF USFF
Realtek ALC269Q High Definition Audio Codec Integrated on system board
Internal Dell Business Audio Speaker Optional
Dell AX210 2.0 Desktop Speakers Optional
Dell AX510/AX510PA Flat Panel Soundbar Speakers Optional
AUDIO AND SPEAKERS
KEYBOARD AND MOUSE
COMMUNICATIONS - NETWORK ADAPTER (NIC)
NOTE: MT supports full height (FH) cards and DT and SFF supports low profile (LP) cards.
MT DT SFF USFF
Dell KB212 USB Entry Keyboard with optional palmrest Optional
Dell Multimedia Pro Keyboard Optional
Dell Smartcard Keyboard Optional
Dell MS111 USB Optical Mouse Optional
Dell Laser Mouse Optional

DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK —VERSION 1.5
18
SECURITY
SERVICE AND SUPPORT
NOTE: For more details on Dell Service Plans please to go to: www.dell.com/service/service_plans
SOFTWARE
MT DT SFF USFF
Trusted Platform Module (TPM) 1.21Integrated on system board
Chassis Intrusion Switch Optional
Dell Smartcard Keyboard Optional
Chassis lock slot and loop support Standard
Dell Data Protection | Hardware Encryption Engine Optional. Available in Q3 2011
1TPM is not available in all countries. Depending on your country regulations, no-TPM system boards may be available.
MT DT SFF USFF
3 Year Warranty1 Next Business Day On-site2(3-3-3) Standard
ProSupport Optional
1For a copy of our guarantees or limited warranties, please write Dell USA L.P., Attn: Warranties, One Dell Way, Round Rock, TX 78682. For more
information, visit www.dell.com/warranty.
2Service may be provided by third-party. Technician will be dispatched if necessary following phone-based troubleshooting. Subject to parts
availability, geographical restrictions and terms of service contract. Service timing dependent upon time of day call placed to Dell. U.S. only.
MT DT SFF USFF
Dell Client Manager Available via Dell.com
Dell Data Protection | Access (DDPA) Standard
Dell Data Protection | Encryption (DDPE) Optional. Available in Q3 2011
ENVIRONMENTAL
NOTE: For more details on Dell Environmental features, please to go to Environmental Attributes section. See
your specific region for availability.
MT DT SFF USFF
Sustainable packaging X
BFR/PVC—free limited configurations
Select coun-
tries only
MultiPack packaging Optional, US only
Energy Ecient Power Supply Optional Standard
X X
ALL-IN-ONE STANDS AND MOUNTS
MT DT SFF USFF
Small Form Factor AIO Stand Optional
Ultra Small Form Factor AIO Stand Optional
Ultra Small Form Factor Wall Mount / Desk Mount Optional

DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK —VERSION 1.5
19
DETAILED ENGINEERING SPECIFICATIONS
SYSTEM DIMENSIONS (PHYSICAL)
NOTE: System Weight and Shipping Weight is based on a typical configuration and may vary based on PC configuration. A typical configuration
includes: integrated graphics, one hard drive, one optical drive.
SYSTEM EXPANSION SLOTS
* Card length can be longer than standard Half-Length Card but cannot be a Full-Length Card.
MT DT SFF USFF
Chassis Volume (liters) 26.27 15.06 8.38 3.70
Chassis Weight (pounds/kilograms) 19.55 / 8.87 16.67 / 7.56 12.57 / 5.70 7.20 / 3.265
Chassis Dimensions: (HxWxD)
Height (inches/centimeters) 14.17 / 36 14.17 / 36 11.42 / 29 9.32 / 23.67
Width (inches/centimeters) 6.89 / 17.5 4.02 / 10.2 3.65 / 9.26 2.56 / 6.5
Depth (inches/centimeters) 16.42 / 41.7 16.14 / 41 12.28/31.2 9.44 / 24
Shipping Weight (pounds/kilograms - includes packaging materials) 23.45 / 10.64 20.03 / 9.09 15.2 / 6.89 9.56/ 4.34
Height (inches/centimeters) 21.31/54.13 21.31 / 54.13 19.25/48.90 19.13/48.59
Width (inches/centimeters) 18.75/47.63 18.75/47.63 15.81/40.16 14.38/36.53
Depth (inches/centimeters) 14.09 / 35.79 10.84/27.53 10.19/25.88 9.63/24.46
Packaging Parameters (HxWxD)
MT DT SFF USFF
PCI Slot (Voltage supported 3.3V/5V/12V/-12V) 1 1
Height (inches/centimeters) 4.376 / 11.115 2.731 /6.89
Length (inches/centimeters) 6.6 / 16.765 6.6/16.765
PCIex16 Slot (BLUE) (Voltage supported 3.3V/12V) 1 1 1
Height (inches/centimeters) 4.376 / 11.115 2.731 /6.89 2.731 /6.89
Length (inches/centimeters) 6.6 / 16.765 6.6 /16.765 6.6/16.765
PCIe x1 Slot (Voltage supported 3.3V/12V) 1 1
Height (inches/centimeters) 4.376 / 11.115 2.731 / 6.89
Length (inches/centimeters) 4.5 / 11.44 4.5 / 11.44
PCIex16 wired as x4 Slot (BLACK) (Voltage supported 3.3/12V) 1 1 1
Mini PCIe x1 Slot 1
Length (inches/centimeters) 6.6/ 16.765 6.6 /16.765 6.6 /16.765
Height (inches/centimeters) 4.376 / 11.115 2.731 /6.89 2.731 /6.89
Maximum Wattage 25W 25W
Maximum Wattage 75W 35W 35W
Maximum Wattage 25W 25W 25W
Maximum Wattage 10W 10W

DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK —VERSION 1.5
20
SYSTEM LEVEL ENVIRONMENTAL AND OPERATING CONDITIONS
MT DT SFF USFF
Temperature
Operating 10° to 30° C (50° to 95° F)
Non-Operating (Storage) -40° to 60° C (-40° to 140° F)
Relative Humidity 20% to 80% (non-condensing)
Maximum vibration
Operating 0.25 G at 3 to 200 Hz at 0.5 octave/min
Non-Operating 0.5 G at 3 to 200 Hz at 1 octave/min
Maximum Shock
Operating Bottom half-sine pulse with a change in velocity
of 50.8 cm/sec (20 inches/sec)
Non-Operating 27-G faired square wave with a velocity change
of 508 cm/sec (200 inches/sec)
Operating –15.2 to 3048 m (–50 to 10,000 ft)
Non-Operating –15.2 to 10,668 m (–50 to 35,000 ft)
Maximum Altitude