Dell OptiPlex 990 Desktop User manual

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

TABLE OF CONTENTS
O V E R V IE W
Mini Tower Computer (MT) View 3-4
Desktop Computer (DT) View 5-6
Small Form Factor Computer (SFF) View 7-8
Ultra Small Form Factor Computer (USFF) View 9-10
M A R K E T I N G S Y S T E M C O N F I G U R A T I O N S
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 ENGINEE RING S PECIF IC ATIONS
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
Media Card Reader 43
BIOS Defaults 44
Chassis Enclosure and Ventilation Requirements 45
Environmental Attributes 46
Acoustic Noise Emission Information 47-50

DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK —VERSION 1.4
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MINI TOWER COMPUTER (MT) VIEW
FRONT VIEW
1Power Button, Power
Light
6Optical Drive (optional)
2Optical Drive Bay
(optional)
7Optical Drive Eject Button
3Headphone Connector 8USB 2.0 Connectors (4)
4Microphone Connector 9Drive Activity Light
5Diagnostic Lights (4)
BACK VIEW
10 Power Supply Diagnostic
Light
14 Expansion Card Slots(4)
11 Power Supply Diagnostic
Button
15 Security Cable Slot
12 Power Connectors 16 Padlock Ring
13 Back Panel Connectors
BACK PANEL CONNECTORS
1Mouse Connector 7Keyboard Connector
2Link Integrity Light 8USB Connectors (6)
3Network Connector 9DisplayPort Connector
4Network Activity Light 10 VGA Connector
5Serial Connector 11 Line-in/Microphone
Connector
6Line-out Connector

DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK —VERSION 1.4
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Number Name Number Name
1Internal Speaker Connector (INT_SPKR) 13 PCI Connector(SLOT3)
2Front IO Connector (FRONTPANEL) 14 PCI-e 4x Connector(SLOT4)
3Thermal Sensor Connector(THRM_2) 15 Intrusion Switch Connector
(INTRUDER)
4SATA 0 Connector(SATA0) 16 System Fan Connector (FAN_HDD)
5SATA 1 Connector(SATA1) 17 P2 Power Connector
(12V_PWRCONN)
6SATA 2 Connector(SATA2) 18 Processor Connector (N/A)
7SATA 3 Connector(SATA3) 19 CPU fan Connector (FAN_CPU)
8Internal USB Connector (INT_USB) 20 Memory Connectors(DIMM1, DIMM2,
DIMM3, DIMM4)
9Buzzer (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 1.4
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DESKTOP COMPUTER (DT) VIEW
FRONT VIEW
1Optical Drive 5Microphone Connector
2Optical Drive Eject Button 6Headphone Connector
3Power Button, Power
Light
7Drive Activity Light
4USB Connectors (4) 8Diagnostic Lights (4)
BACK VIEW
9Padlock 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
BACK PANEL CONNECTORS
1Mouse Connector 7Keyboard Connector
2Link Integrity Light 8USB Connectors (6)
3Network Connector 9DisplayPort Connector
4Network Activity Light 10 VGA Connector
5Serial Connector 11 Line-in/Microphone
Connector
6Line-out Connector

DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK —VERSION 1.4
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Number Name Number Name
1Internal Speaker Connector
(INT_SPKR)
13 PCI-e 1x Connector(SLOT2)
2Front IO Connector (FRONTPANEL) 14 Intrusion Switch Connector
(INTRUDER)
3Thermal Sensor Connector(THRM_2) 15 Thermal Sensor Connector(THRM_1)
4SATA 0 Connector(SATA0) 16 System Fan Connector (FAN_HDD)
5SATA 1 Connector(SATA1) 17 P2 Power Connector
(12V_PWRCONN)
6SATA 2 Connector(SATA2) 18 Processor Connector (N/A)
7Internal USB Connector (INT_USB) 19 CPU Fan Connector (FAN_CPU)
8PCI-e 16x Connector(SLOT1) 20 Memory Connectors(DIMM1, DIMM2,
DIMM3, DIMM4)
9PCI-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 1.4
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SMALL FORM FACTOR COMPUTER (SFF) VIEW
FRONT VIEW
1Optical Drive 5Microphone Connector
2Optical Drive Eject Button 6Headphone Connector
3Power Button, Power
Light
7Diagnostic Lights (4)
4USB 2.0 Connectors (4) 8Drive Activity Light
BACK VIEW
9Padlock 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
BACK PANEL CONNECTORS
1Mouse Connector 7Keyboard Connector
2Serial Connector 8DisplayPort Connector
3Link Integrity Light 9VGA Connector
4Network Connector 10 USB Connectors (6)
5Network Activity Light 11 Line-in/Microphone
Connector
6Line-out Connector

DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK —VERSION 1.4
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Number Name Number Name
1P1 power Connector (POWER) 12 LPC debug Connector (LPC_DEBUG)
2System fan Connector (FAN_HDD) 13 Battery Connector (BATTERY)
3Internal Speaker Connector (INT_SPKR) 14 P2 Power Connector
(12V_PWRCONN)
4Buzzer (BEEP) 15 Processor Connector (N/A)
5PCI-e 4x Connector(SLOT2) 16 CPU Fan Connector (FAN_CPU)
6PCI-e 16x Connector(SLOT1) 17 Power Switch Connector (PWR_SW)
7SATA 2 Connector(SATA2) 18 Memory Connector(DIMM3)
8SATA 1 Connector(SATA1) 19 Memory Connector(DIMM1)
9SATA 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 1.4
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ULTRA SMALL FORM FACTOR COMPUTER (USFF) VIEW
FRONT VIEW
1Optical Drive 6Headphone Connector
2Optical Drive Eject Button 7Microphone Connector
3Power Button, Power
Light
8USB Connectors (2)
4Drive Activity Light
5Diagnostic 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 1.4
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Number Name Number Name
1Front Panel Connector (FRONTPANEL) 10 SATA 1 Connector(SATA_1)
2Memory Connector(DIMM_2) 11 SATA 0 Connector(SATA_0)
3Memory Connector(DIMM_1) 12 P1 Power Connector(POWER1)
4CPU Fan Connector (FAN_CPU) 13 HDD-ODD Power Connector
(HDD_ODD_POWER)
5Internal Speaker Connector (INT_SPKR) 14 Intrusion Switch Connector
(INTRUDER)
6Buzzer (BEEP) 15 LPC Debug Connector (LPC_DEBUG)
7Front IO Connector (F_USB_AUDIO) 16 P2 Power Connector(12V_PWRCONN)
8System Fan Connector (FAN_HDD) 17 Processor Connector (N/A)
9Mini-PCI Socket (PCIE_MINICARD) 18 Battery Connector (BATTERY)
USFF System Board Components

DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK —VERSION 1.4
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MARKETING SYSTEM CONFIGURATIONS
NO TE : O e ring s ma y v ar y by count ry. For mor e inf orma ti on re ga rd ing the congu rati on of yo ur co mputer , c li ck
St ar t> Help and Su ppor t an d se le ct the o p tion t o vi ew in forma t io n ab ou t yo u r comput er .
OPER ATING SYSTEM
MT DT SFF USFF
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),
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) XXXX
CHIPSET
MT DT SFF USFF
Chipset Intel Q67 Express Chipset
Non-volatile memory on chipset
BIOS Conguration 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 conguration contained within SPI_FLASH – no dedicated
LOM EEPROM

DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK —VERSION 1.4
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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 congurations 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gurations worldwide. The following GSP processors identi-
ed 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 1.4
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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 4442
DIMM Capacities Up to 4GB Up to 4GB Up to 4GB Up to 4GB
Minimum Memory 1GB 1GB 1GB 1GB
Maximum System Memory 16GB1 16GB116GB1 8GB1
Memory congurations
16GB1 DDR3, 1333MHz, (4 DIMM) XXX
8GB1 DDR3, 1333MHz, (2 DIMM) XXXX
4GB1 DDR3, 1333MHz, (2 DIMM) XXX
4GB1 DDR3, 1333MHz, (1 DIMM) X
3GB DDR3, 1333MHz, (2 DIMM) XXXX
2GB DDR3, 1333MHz, (2 DIMM) XXX
2GB DDR3, 1333MHz, (1 DIMM) X
1GB DDR3, 1333MHz, (1 DIMM) XXXX

DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK —VERSION 1.4
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DRIVES AND REMOVABLE STORAGE
MT DT SFF USFF
Bays:
5.25-inch Optical Bay Supported (External) 2111
Optical Drives Supported (maximum) 211 (slim-line) 1 (slim-line)
Hard Drive Bay Supported (Internal) 2111
Hard Drives Supported 3.5”/2.5” (maximum) 2/2 1/2 1/2 0/1
Interface:
SATA 2.0 2110
SATA 3.0 2222
3.5” Hard Drives:
1TB1 SATA 7200 RPM HDD XXX
500GB1 SATA 7200 RPM HDD XXX
320GB1 SATA 7200 RPM HDD XXX
250GB1 SATA 7200 RPM HDD XXX
2.5” Hard Drives: (Hybrid drive includes 4GB NAND Flash for greater performance)
128GB1 SATA Solid State Drive XXXX
500GB1 SATA 7200 RPM Hybrid HDD XXXX
320GB1 SATA 7200 RPM Opal SED HDD XXXX
500GB1 SATA 7200 RPM HDD XXXX
250GB1 SATA 7200 RPM HDD XXXX
RAID 1 Data Protection: (includes two matching capacity/speed hard drives)
1TB1 SATA 7200 RPM HDD (3.5”) X
500GB1 SATA 7200 RPM HDD (3.5”) X
320GB1 SATA 7200 RPM HDD (3.5”) X
250GB1 SATA 7200 RPM HDD (3.5”) X
500GB1 SATA 7200 RPM Hybrid HDD (2.5”) XXX
500GB1 SATA 7200 RPM HDD (2.5”) XXX
250GB1 SATA 7200 RPM HDD (2.5”) XXX

DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK —VERSION 1.4
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DRIVES AND REMOVABLE STORAGE
1 For hard drives, GB means 1 billion bytes; actual capacity varies with preloaded material and operating environment and will be less.
2 Discs burned with this drive may not be compatible with some existing drives and players; using DVD+R media provides maximum compatibility.
3 DVD-ROM drives may have write-capable hardware that has been disabled via firmware modifications.
SYSTEM EXPANSION SLOTS
NOTE: See Detailed Engineering Specications 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 conguration. MCR is not available on the SFF and USFF.
MT DT SFF USFF
PCI Slot 1100
PCIe x16 Slot 1110
PCIe x16 (wired x4) Slot 1110
PCIe x1 Slot 1100
Half mini-PCIe connector 0001
Serial ATA (SATA) connectors 4332
MT DT SFF USFF
RAID 0 Performance: (includes two matching capacity/speed hard drives)
1TB1 SATA 7200 RPM HDD (3.5”) X
500GB1 SATA 7200 RPM HDD (3.5”) X
320GB1 SATA 7200 RPM HDD (3.5”) X
250GB1 SATA 7200 RPM HDD (3.5”) X
500GB1 SATA 7200 RPM Hybrid HDD (2.5”) XXX
500GB1 SATA 7200 RPM HDD (2.5”) XXX
250GB1 SATA 7200 RPM HDD (2.5”) XXX
Optical Drive: (SFF/USFF require slim-line optical drive)
Blu-ray Writer SATA 1.5Gbit/s XXXX
DVD+/-RW2 SATA 1.5Gbit/s XXXX
DVD-ROM3 SATA 1.5Gbit/s XXXX
Media Card Reader: (requires slim line optical)
Dell 19 in 1 Media Card Reader XX

DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK —VERSION 1.4
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GRAPHICS/VIDEO CONTR OLLER
NOTE: MT supports full height (FH) cards and DT and SFF supports low prole (LP) cards.
EXTERNAL POR TS/CONNECTORS
NOTE: MT supports full height (FH) cards and DT and SFF supports low prole (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 Optional
card
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
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
Parallel via optional PCIex1 card Optional LP card, available in
Q3 2011
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
Optional LP
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

DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK —VERSION 1.4
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MT DT SFF USFF
Intel® 82579LM Gigabit1 Ethernet 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
1 This 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 prole (LP) cards.
MT DT SFF USFF
Realtek ALC269Q High Denition 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 ADAPTE R (NIC)
NOTE: MT supports full height (FH) cards and DT and SFF supports low prole (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 1.4
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SECURITY
SERVICE AND SUPPORT
NO TE : Fo r mo re d etai l s on D ell Servi ce P la ns p lease to go to: ww w. de ll .co m/s ervi ce/se rv ic e_pl an s
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
1 For 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.
2 Service 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
NO TE : Fo r mo re de ta il s o n Dell E nv iro nmen ta l fe at ures , p leas e to go t o Environmental A tt ribute s s ec tion. Se e
yo ur s pe ci c re gion for a vailability .
MT DT SFF USFF
Sustainable packaging X XX
BFR/PVC—free limited congurations Select coun-
tries only
MultiPack packaging Optional, US only
Energy Ecient Power Supply Optional Standard
ALL-IN-ONE STANDS AN D 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 1.4
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DETAILED ENGINEERING SPECIFICATIONS
SYSTEM DIMENSIONS (P HYSICAL)
NOTE: System Weight and Shipping Weight is based on a typical conguration and may vary based on PC conguration. A typical conguration
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
Packaging Parameters (HxWxD)
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
MT DT SFF USFF
PCI Slot (Voltage supported 3.3V/5V/12V/-12V) 11
Height (inches/centimeters) 4.376 / 11.115 2.731 /6.89
Length (inches/centimeters) 6.6 / 16.765 6.6/16.765
Maximum Wattage 25W 25W
PCIex16 Slot (BLUE) (Voltage supported 3.3V/12V) 111
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
Maximum Wattage 75W 35W 35W
PCIex16 wired as x4 Slot (BLACK) (Voltage supported 3.3/12V) 111
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
Maximum Wattage 25W 25W 25W
PCIe x1 Slot (Voltage supported 3.3V/12V) 11
Height (inches/centimeters) 4.376 / 11.115 2.731 / 6.89
Length (inches/centimeters) 4.5 / 11.44 4.5 / 11.44
Maximum Wattage 10W 10W
Mini PCIe x1 Slot 1

DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK —VERSION 1.4
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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)
Maximum Altitude
Operating –15.2 to 3048 m (–50 to 10,000 ft)
Non-Operating –15.2 to 10,668 m (–50 to 35,000 ft)