Dell Precision T5500 Manuel utilisateur

DellPrecision™T5500ServiceManual

Notes, Cautions, and Warnings

IfyoupurchasedaDell™nSeriescomputer,anyreferencesinthisdocumenttoMicrosoft®Windows®operating systems are not applicable.

Information in this document is subject to change without notice.

©2009DellInc.Allrightsreserved.

Reproduction of this material in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden.

Trademarks used in this text: Dell, the DELL logo, and Dell Precision are trademarks of Dell Inc.; Intel and Xeon are registered trademarks of Intel Corporation; Bluetooth is a

registered trademark owned by Bluetooth SIG, Inc. and is used by Dell under license; Blu-ray Disc is a trademark of the Blu-ray Disc Association; Microsoft, Windows,Windows

Server,MS-DOS, Aero, Windows Vista.and the Windows Vista start button are either trademarks or registered trademarks of Microsoft Corporation in the United States and/or other

countries.

Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Dell Inc. disclaims any

proprietary interest in trademarks and trade names other than its own.

Model DCTA

September2009Rev.A01



Working on Your Computer

Adding and Replacing Parts

Specifications

Diagnostics

About Memory

About Your System Board

System Setup



NOTE: A NOTE indicates important information that helps you make better use of your computer.

CAUTION: A CAUTION indicates potential damage to hardware or loss of data if instructions are not followed.

WARNING: A WARNING indicates a potential for property damage, personal injury, or death.

About Memory

DellPrecision™T5500ServiceManual

Memory Modules

Supported Memory Configurations

Memory Subsystem

Memory Slots

Memory Population Rules

Your computer uses 1066 MHz and 1333Mhz DDR3 unbuffered or registered ECC SDRAM memory. DDR3 SDRAM, or double-data-rate three synchronous

dynamic random access memory, is a random access memory technology. It is a part of the SDRAM family of technologies, which is one of many DRAM (dynamic

random access memory) implementations, and is an evolutionary improvement over its predecessor, DDR2 SDRAM.

The primary benefit of DDR3 SDRAM is its ability to run its I/O bus at four times the speed of the memory cells it contains, thus enabling faster bus speeds and

higher peak throughputs than earlier technologies. This is achieved at the cost of higher latency. Also, the DDR3 standard allows for chip capacities of 512

megabit to 8 gigabit, effectively enabling memory modules of maximum 16 gigabyte in size.

DDR3 memory comes with a promise of a power consumption reduction of 30% compared to current commercial DDR2 modules due to DDR3’s 1.5 V supply

voltage. This supply voltage works well with the 90 nm fabrication technology used for most DDR3 chips. Some manufacturers further propose to use "dual-

gate" transistors to reduce leakage of current.

The main benefit of DDR3 comes from the higher bandwidth made possible by DDR3’s 8 bit deep prefetch buffer, whereas DDR2’s is 4 bits, and DDR’s is 2 bits

deep.

Memory Modules

Supported Memory Configurations



WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best

practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance.

Standard name

Memory clock

Cycle time

I/O Bus clock

Data transfers per second

Module name

Peak transfer rate

DDR3-1066

133 MHz

7.5 ns

533 MHz

1066 Million

PC3-8500

8533 MB/s

DDR3-1333

166 MHz

6 ns

667 MHz

1333 Million

PC3-10600

10667 MB/s

Single Processor Memory Configurations

Size

(GB)

DIMM

Ranks

DIMM1

DIMM2

DIMM3

DIMM4

DIMM5

DIMM6

3

1 GB



1 GB



2 GB

1 GB



2 GB

1 GB



2 GB

4 GB



4 GB

8 GB



8 GB

4 GB

8 GB

Dual CPU Memory Configurations

Size

(GB)

DIMM

Ranks

MB DIMM1

MB DIMM2

MB DIMM3

MB DIMM4

MB DIMM5

MB DIMM6

Riser DIMM1

Riser DIMM2

Riser DIMM3

1 GB



1 GB



1 GB



1 GB



1 GB



1 GB

2 GB

1 GB



2 GB

1 GB

2 GB



2 GB

4 GB



4 GB

2 GB

4 GB

8 GB



8 GB

4 GB

8 GB

4 GB

8 GB



Memory Subsystem

The memory subsystem consists of three DDR3 memory channels attached to each processor. All single-processor configurations have six DIMM slots (two per

channel) attached to the primary processor located on the system board. Dual-processor configurations require an optional riser card that contains the

secondary processor and the DIMMs associated with the secondary processor. There are six DIMM slots on the riser, for a total of twelve DIMMs in the system.

Memory Slots

There are six memory slots on the system board. The slots are numbered DIMM1 through DIMM6. DIMM1 is furthest from the processor.

In addition, the dual-processor riser features three additional memory slots. The slots are numbered DIMM1 through DIMM3. DIMM1 is furthest from the

processor.

8 GB

NOTE: If more than one Quad rank DIMM is installed within a channel (DIMM1 & DIMM4, DIMM2 & DIMM5, DIMM3 & DIMM6) then the maximum DDR3

speed is reduced to 800 MHz. Spreading Quad Rank memory modules across multiple channels is recommended.

NOTE: DDR3 DIMMs have 240 pins, the same number as DDR2, and are the same size, but are electrically incompatible and have a different key notch

location.

DIMM slot configuration for a single processor or a second processor on the riser.

Memory Population Rules

Your computer requires DIMMs within a channel to be populated starting with the DIMMs farthest from the processor first. This means the DIMM slots 1, 2 and

3 must be populated before DIMM slots 4, 5 and 6. In addition, when populating a Quad-rank DIMM with a Single-or Dual-rank DIMM in the same channel, the

Quad-rank DIMM must be populated farthest from the CPU.

To maximize available memory bandwidth, DIMMs within a configuration should generally be spread across as many channels as possible before populating

multiple DIMMs per channel. The population guidelines below help to achieve this.

Single CPU configurations (6 DIMM slots on MB)

lIf configuration contains DIMMs of all the same size, populate in the following order: DIMM1, DIMM2, DIMM3, DIMM4, DIMM5, DIMM6

lIf configuration contains DIMMs of mixed sizes, populate the larger DIMMs first. For example, for a 4GB configuration consisting of one 2GB DIMM and two

1GB DIMMs, the population would be DIMM1=2GB, DIMM2=1GB, DIMM3=1GB, DIMM4=empty, DIMM5=empty, DIMM6=empty.

Dual CPU configurations (6 DIMM slots on MB plus 3 DIMM slots on Riser)

lIf configuration contains DIMMs of all the same size, populate in the following order: MB_DIMM1, Riser_DIMM1, MB_DIMM2, Riser_DIMM2, MB_DIMM3,

Riser_DIMM3, MB_DIMM4, MB_DIMM5, MB_DIMM6.

lIf configuration contains DIMMs of mixed sizes, populate the larger DIMMs in the Riser.



NOTE: If any DIMMs are >30mm tall (possible early 16GB DIMMs), they must be installed on the system board only.

About Your System Board

DellPrecision™T5500ServiceManual

System Board Schematic

Clearing Forgotten Passwords

Clearing CMOS Settings



System Board Schematic

Clearing Forgotten Passwords

1. Remove the computer cover.

2. Locate the 4-pin password connector (PSWD) on the system board.

3. Remove the 2-pin jumper plug from pins 3 and 4 and set the jumper plug aside.

4. Replace the computer cover.

5. Connect your keyboard and mouse, then connect your computer and monitor to electrical outlets and turn them on.

6. After the operating system loads, turn the computer off.

Main Power Connector (POWER1)

Type A USB Port (INT_USB2)

SATA Connectors (SATA0-4)

CPU Riser 2 (CPU2_RSR2)

Password Jumper (PSWD)

CPU Riser 1 (CPU_RSR1)

Hard Drive Fan Connector (FAN_HDD)

>Primary Processor Connector (CPU1)

Floppy Drive (DSKT)

Power Connector (POWER_CPU1)

Front Panel Connector (FRONTPANEL)

Front Fan Connector (FAN_FRONT)

Chassis Intrusion Header (INTRUDER)

Card Cage Fan (FAN_CCAG)

PCI-X Card Slot (SLOT6)

Memory Module Connectors (DIMM1-6)

PCI Card Slot (SLOT5)

Optional Serial/PS2 Connector (SERIAL2)

PCI Express 2.0 x16 Card Slot (SLOT4)

Auxiliary Hard-drive LED Connector (AUX_LED)

PCI Express 2.0 x16 Card Slot, wired as x8 (SLOT3)

Battery Socket (BATTERY)

PCI Express 2.0 x16 Card Slot (SLOT2)

Internal Speaker Connector (INT_SPKR)

PCI Express 2.0 x16 Card Slot, wired as x8 (SLOT1)

Flexbay USB (INT_USB)

Front Panel Audio Connector (FP_AUDIO)

RTC Reset Jumper (RTCRST)

WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best

practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance.

Ensure that the computer is off and not in a power management mode. If you cannot shut down the computer using the operating system, press and hold the

power button for 4 seconds.

7. Disconnect the keyboard and mouse, then disconnect the computer and monitor from their electrical outlets.

8. Press the power button on the computer to ground the system board.

9. Remove the computer cover.

10. Replace the 2-pin jumper plug onto pins 3 and 4 of the password connector (RTCRST_PSWD) on the system board.

11. Connect your computer and devices to electrical outlets, and then turn them on.

Clearing CMOS Settings

1. Remove the computer cover.

2. Locate the 4-pin password connector (PSWD) on the system board.

3. Remove the 2-pin jumper plug from pins 3 and 4.

4. Locate the 4-pin CMOS jumper (RTCRST) on the system board.

5. Move the 2-pin jumper plug from the password jumper to pins 1 and 2 of the CMOS jumper.

6. Plug in AC power to the system and wait ten seconds for the CMOS to clear.

7. Move the 2-pin jumper plug back to pins 3 and 4 of the password jumper.

8. Replace the computer cover.

9. Connect your computer and devices to electrical outlets, and turn them on.





NOTE: Ensure that the computer is off and not in a power management mode. If you cannot shut down the computer using the operating system, press

and hold the power button for 6 seconds.

NOTE: The password jumper plug must be reinstalled on the password jumper pins in order to enable the password feature.

NOTE: In System Setup, both system and administrator password options appear as Not Set. The password feature is enabled, but a password is not

assigned.

WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best

practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance.

NOTE: The computer must be disconnected from the electrical outlet to clear the CMOS setting.

NOTE: You can use the RTCRST jumper procedure above to attempt recovery from a No POST, No Video situation.

System Setup

DellPrecision™T5500ServiceManual

POST Keystrokes

Boot Menu

Entering System Setup

System Setup Navigation Keystrokes



POST Keystrokes

YourcomputerhasseveralkeystrokeoptionsavailableduringthePOSTprocessattheDell™Logoscreen.

Boot Menu

AswithpreviousDellPrecision™workstationplatforms,yourcomputerincludesaone-time boot menu. This feature offers a quick and convenient method with

which to bypass the System Setup-defined boot device order and boot directly to a specific device (e.g., floppy, CD-ROM, or hard drive).

The boot menu enhancements introduced on previous platforms are as follows:

lEasier access—Although the <Ctrl><Alt><F8> keystroke still exists and can be used to call up the menu, you can also simply press <F12> during

system boot to access the menu.

lDiagnostics options—The boot menu includes two diagnostic options, IDE Drive Diagnostics (90/90 Hard Drive Diagnostics) and Boot to the Utility

Partition.

Entering System Setup

Press <F2> to enter System Setup and change the user-definable settings. If you have trouble entering System Setup using this key, press <F2> when the

keyboard lights first flash.

Follow the on-screen instructions to view and/or change any settings. On each screen, the system setup options are listed at the left. To the right of each

option is the setting or value for that option. You can change settings that appear as white type on the screen. Options or values that you cannot change

(because they are determined by your Tablet-PC) appear less bright.

The upper-right corner of the screen displays help information for the currently highlighted option. The lower-right corner displays information about the

computer. System setup key functions are listed across the bottom of the screen.

The system setup screens display the current setup information and settings for your computer, such as:

lSystem configuration

lBoot order

lBoot (start-up) configuration

lBasic device configuration settings

lSystem security and hard drive password settings

System Setup Navigation Keystrokes

Use the following keystrokes to navigate the BIOS screens.

Keystroke

Function

Description

<F2>

Enter System Setup

Use System Setup to make changes to the user-definable settings.

<F12>or

Enter Boot Menu

One-time boot and diagnostics utility menu

<F3>

Network Boot

Bypass the BIOS boot sequence and boot directly to the network

Navigation Keystrokes

Action

Keystroke

Expand and collapse field

<Enter>, left-and right-arrow keys, or +/–

Expand or collapse all fields

< >



Exit BIOS

<Esc>—Remain in Setup, Save/Exit, Discard/Exit

Change a setting

Left-and right-arrow keys

Select field to change

<Enter>

Cancel a modification

<Esc>

Reset defaults

<Alt><F> or Load Defaults menu option

NOTE: Depending on your computer and any installed devices, the items listed in this section may or may not appear.

Diagnostics

DellPrecision™T5500ServiceManual

Dell Diagnostics

Power Button Light Codes

Diagnostic Light Codes

Pre-POST Diagnostic Light Patterns

POST Diagnostic Light Patterns

Beep Codes

Dell Diagnostics

When to Use the Dell Diagnostics

It is recommended that you print these procedures before you begin.

Enter system setup (see Entering System Setup), review your computer's configuration information, and ensure that the device you want to test displays in

System Setup and is active.

Start the Dell Diagnostics from either your hard drive or from the Drivers and Utilities disc.

Starting the Dell Diagnostics From Your Hard Drive

1. Turn on (or restart) your computer.

2. When the DELL logo appears, press <F12> immediately.

If you wait too long and the operating system logo appears, continue to wait until you see the Microsoft®Windows®desktop. Then shut down

your computer (see Turning Off Your Computer), and try again.

3. When the boot device list appears, highlight Boot to Utility Partition and press <Enter>.

4. When the Dell Diagnostics Main Menu appears, select the test that you want to run.

Starting the Dell Diagnostics From the Drivers and Utilities Disc

1. Insert the Drivers and Utilities disc.

2. Shut down and restart the computer.

When the DELL logo appears, press <F12> immediately.

If you wait too long and the Windows logo appears, continue to wait until you see the Windows desktop. Then shut down your computer and try again.

3. When the boot device list appears, highlight Onboard or USB CD-ROM Drive and press <Enter>.

4. Select the Boot from CD-ROM option from the menu that appears and press <Enter>.

5. Type 1to start the menu and press <Enter> to proceed.

6. Select Run the 32 Bit Dell Diagnostics from the numbered list. If multiple versions are listed, select the version appropriate for your computer.

7. When the Dell Diagnostics Main Menu appears, select the test you want to run.

Dell Diagnostics Main Menu

1. After the Dell Diagnostics loads and the Main Menu screen appears, click the button for the option you want.

NOTE: The Dell Diagnostics software works only on Dell computers.

NOTE: The Drivers and Utilities disc is optional and may not ship with your computer.

NOTE: If you see a message stating that no diagnostics utility partition has been found, run the Dell Diagnostics from your Drivers and Utilities disc.

NOTE: The next steps change the boot sequence for one time only. On the next startup, the computer boots according to the devices specified in the

system setup program.

Option

Function

Express Test

Performs a quick test of devices. This test typically takes 10 to 20 minutes and requires no interaction on your part. Run Express Test first to

increase the possibility of tracing the problem quickly.

Extended

Test

Performs a thorough check of devices. This test typically takes 1 hour or more and requires you to answer questions periodically.

Custom Test

Tests a specific device. You can customize the tests you want to run.

Symptom

Tree

Lists the most common symptoms encountered and allows you to select a test based on the symptom of the problem you are having.

2. If a problem is encountered during a test, a message appears with an error code and a description of the problem. Write down the error code and

problem description and follow the instructions on the screen.

3. If you run a test from the Custom Test or Symptom Tree option, click the applicable tab described in the following table for more information.

4. When the tests are completed, if you are running the Dell Diagnostics from the Drivers and Utilities disc, remove the disc.

5. Close the test screen to return to the Main Menu screen. To exit the Dell Diagnostics and restart the computer, close the Main Menu screen.

Power Button Light Codes

The diagnostic lights give much more information about the system state, but legacy power light states are also supported in your computer. The power light

states are shown in following table.

Diagnostic Light Codes

Four (4) single color lights are incorporated on the front control panel to serve as a diagnostic aid for troubleshooting systems exhibiting No Post/No Video

symptoms. The lights do NOT report runtime errors.

Each light has two possible states of OFF or ON. The most significant bit is labeled with the number 1, and the other three are labeled 2, 3, and 4, as you go

down or across the LED stack. The normal operating condition after POST is for all four lights to be ON and then turn off as the BIOS hands over control to the

operating system.

Pre-POST Diagnostic Light Patterns

Tab

Function

Results

Displays the results of the test and any error conditions encountered.

Errors

Displays error conditions encountered, error codes, and the problem description.

Help

Describes the test and may indicate requirements for running the test.

Configuration

Displays your hardware configuration for the selected device.

The Dell Diagnostics obtains configuration information for all devices from system setup, memory, and various internal tests, and it displays

the information in the device list in the left pane of the screen. The device list may not display the names of all the components installed on

your computer or all devices attached to your computer.

Parameters

Allows you to customize the test by changing the test settings.

Power Light

State

Description

Off

Power is off, light is blank.

Blinking Amber

Initial state of light at power up.

Indicates system has power, but the POWER_GOOD signal is not yet active.

If the Hard Drive light is off, it is probable that the power supply needs to be replaced.

If the Hard Drive light on, it is probable that an onboard regulator or VRM has failed. Look at the diagnostic lights for further information.

Solid Amber

Second state of the light at power up. Indicates the POWER_GOOD signal is active and it is probable that the power supply is fine. Look at

the diagnostic lights for further information.

Blinking Green

System is in a low power state, either S1 or S3. Look at the diagnostic lights to determine which state the system is in.

Solid Green

System is in S0 state, the normal power state of a functioning machine.

The BIOS will turn the light to this state to indicate it has started fetching opcodes.

State

Light Pattern

( 1 2 3 4 )

Light

Description

Power

Light

State Assignment

State Description

Pb0a

1- Off

2- Off

3- Off

4- Off

System

Unplugged

System is not plugged into AC, PSU is not plugged into system board, or control

panel not connected to system board.

Pb0b

1- Off

2- Off

3- Off

4- Off

ACPI S0; Normal

Operation

System is on with no failures detected. This is actually a BIOS controlled state and is

also S0e.

Pb0c

1- Off

2- Off

3- Off

4- Off

ACPI S1

Windows Standby State.

Pb1

1- Off

2- Off

3- Off

4- Off

ACPI S4 or S5

Hibernate or Soft off. System plugged in, but either turned off or in Windows

Hibernation State.

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