Dell T5500 User Manual

Dell Precision™ T5500 Service Manual

Working on Your Computer

Adding and Replacing Parts

Specifications

Diagnostics

About Memory

About Your System Board

System Setup

Notes, Cautions, and Warnings

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.

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

About Memory

Dell Precision™ T5500 Service Manual

Memory Modules

Supported Memory Configurations

Memory Subsystem

Memory Slots

Memory Population Rules

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.

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 "dualgate" 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

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

Supported Memory Configurations

Single Processor Memory Configurations

Size	DIMM	DIMM1	DIMM2	DIMM3	DIMM4	DIMM5	DIMM6
(GB)	Ranks
3	SR	1 GB	1 GB	1 GB
4	SR	1 GB	1 GB	1 GB	1 GB
4	MR	2 GB	1 GB	1 GB
8	MR	2 GB	2 GB	2 GB	1 GB	1 GB
12	SR	2 GB	2 GB	2 GB	2 GB	2 GB	2 GB
12	DR	4 GB	4 GB	4 GB
24	DR	4 GB	4 GB	4 GB	4 GB	4 GB	4 GB
24	DR	8 GB	8 GB	8 GB
32	MR	8 GB	8 GB	4 GB	4 GB	4 GB	4 GB
48	DR	8 GB	8 GB	8 GB	8 GB	8 GB	8 GB

Dual CPU Memory Configurations

Size	DIMM	MB DIMM1	MB DIMM2	MB DIMM3	MB DIMM4	MB DIMM5	MB DIMM6	Riser DIMM1	Riser DIMM2	Riser DIMM3
(GB)	Ranks
3	SR	1 GB	1 GB					1 GB
4	SR	1 GB	1 GB					1 GB	1 GB
6	SR	1 GB	1 GB	1 GB				1 GB	1 GB	1 GB
8	MR	2 GB	1 GB	1 GB				2 GB	1 GB	1 GB
12	SR	2 GB	2 GB	2 GB				2 GB	2 GB	2 GB
24	DR	4 GB	4 GB	4 GB				4 GB	4 GB	4 GB
24	MR	2 GB	2 GB	2 GB	2 GB	2 GB	2 GB	4 GB	4 GB	4 GB
48	DR	8 GB	8 GB	8 GB				8 GB	8 GB	8 GB
48	MR	4 GB	4 GB	4 GB	4 GB	4 GB	4 GB	8 GB	8 GB	8 GB
64	MR	8 GB	8 GB	8 GB	8 GB	4 GB	4 GB	8 GB	8 GB	8 GB

72

DR

8 GB

8 GB

8 GB

8 GB

8 GB

8 GB

8 GB

8 GB

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.

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.

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

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.

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 Singleor 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)

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

•If 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)

•If 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.

•If 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

1	Main Power Connector (POWER1)	15	Type A USB Port (INT_USB2)
2	SATA Connectors (SATA0-4)	16	CPU Riser 2 (CPU2_RSR2)
3	Password Jumper (PSWD)	17	CPU Riser 1 (CPU_RSR1)
4	Hard Drive Fan Connector (FAN_HDD)	18	>Primary Processor Connector (CPU1)
5	Floppy Drive (DSKT)	19	Power Connector (POWER_CPU1)
6	Front Panel Connector (FRONTPANEL)	20	Front Fan Connector (FAN_FRONT)
7	Chassis Intrusion Header (INTRUDER)	21	Card Cage Fan (FAN_CCAG)
8	PCI-X Card Slot (SLOT6)	22	Memory Module Connectors (DIMM1-6)
9	PCI Card Slot (SLOT5)	23	Optional Serial/PS2 Connector (SERIAL2)
10	PCI Express 2.0 x16 Card Slot (SLOT4)	24	Auxiliary Hard-drive LED Connector (AUX_LED)
11	PCI Express 2.0 x16 Card Slot, wired as x8 (SLOT3)	25	Battery Socket (BATTERY)
12	PCI Express 2.0 x16 Card Slot (SLOT2)	26	Internal Speaker Connector (INT_SPKR)
13	PCI Express 2.0 x16 Card Slot, wired as x8 (SLOT1)	27	Flexbay USB (INT_USB)
14	Front Panel Audio Connector (FP_AUDIO)	28	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.

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.

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.

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.

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.

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

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

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.

Clearing CMOS Settings

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.

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: 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.

	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
	<Ctrl><Alt><F8>
	< F3>	Network Boot	Bypass the BIOS boot sequence and boot directly to the network

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:

•Easier 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.

•Diagnostics 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:

•System configuration

•Boot order

•Boot (start-up) configuration

•Basic device configuration settings

•System security and hard drive password settings

System Setup Navigation Keystrokes

Use the following keystrokes to navigate the BIOS screens.

	Navigation Keystrokes
Action	Keystroke
Expand and collapse field	<Enter>, leftand right-arrow keys, or +/–
Expand or collapse all fields	< >

Exit BIOS	<Esc>—Remain in Setup, Save/Exit, Discard/Exit
Change a setting	Leftand 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.

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.

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.

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.

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.

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.

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 1 to 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.

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	Performs a thorough check of devices. This test typically takes 1 hour or more and requires you to answer questions periodically.
Test
Custom Test	Tests a specific device. You can customize the tests you want to run.
Symptom	Lists the most common symptoms encountered and allows you to select a test based on the symptom of the problem you are having.
Tree

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.

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.

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.

	Power Light	Description
	State
	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.

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

	State	Light Pattern	Light	Power	State Assignment	State Description
		( 1 2 3 4 )	Description	Light
			1- Off
	Pb0a		2- Off		System	System is not plugged into AC, PSU is not plugged into system board, or control
			3- Off		Unplugged	panel not connected to system board.
			4- Off
			1- Off
	Pb0b		2- Off		ACPI S0; Normal	System is on with no failures detected. This is actually a BIOS controlled state and is
			3- Off		Operation	also S0e.
			4- Off
			1- Off
	Pb0c		2- Off		ACPI S1	Windows Standby State.
			3- Off
			4- Off
			1- Off
	Pb1		2- Off		ACPI S4 or S5	Hibernate or Soft off. System plugged in, but either turned off or in Windows
			3- Off			Hibernation State.
			4- Off

		1- Off
Pb2		2- Off	-	Reserved	Reserved
		3- Solid
		4- Off
		1- Off
Pb3		2- Off		ACPI S3	Suspend to RAM Windows Standby State.
		3- Solid
		4- Solid
		1- Off
Pb4		2- Green	-	Reserved	Reserved
		3- Off
		4- Off
		1- Off
Pb5		2- Green	-	Reserved	Reserved
		3- Off
		4- Green
		1- Off
Pb6		2- Green	-	Reserved	Reserved
		3- Green
		4- Off
		1- Off
Pb7		2- Blink		ACPI S0, hand off	System on. BIOS not execution. This is the transition state to POST states.
		3- Blink		to BIOS control
		4- Blink
		1- Green
Pb8		2- Off	-	Reserved	Reserved
		3- Off
		4- Off
		1- Blink		Non-System
		2- Off			A power failure has been detected on a plug-in component such as VRM, Video Riser,
Pb9				board Regulator
		3- Off			or Memory Riser.
				Failure
		4- Blink
		1- Blink
Pb10		2- Off		PSU Failure	PSU may be bad or PSU cable may be crimped creating a short on a main power rail.
		3- Blink			(PS_ON asserted, PS_PWRGOOD not asserted)
		4- Off
		1- Blink
Pb11		2- Off		PSU Cable Failure	All PSU cables may not be properly connected to system board. (PS_ON asserted,
		3- Blink			missing a main power rail)
		4- Blink
		1- Blink			A power failure has been detected in one of the onboard system board regulators.
Pb12		2- Blink		System board	This could be caused by a failed system board component or by a plug-in device
		3- Off		Regulator Failure	creating a short on a regulated power rail. (PS_ON asserted, PS_PWRGOOD
		4- Off			asserted, SYS_PWRGOOD de-asserted)
		1- Blink
Pb13		2- Blink		Mismatch	Hardware detected a population incompatibility with a critical system component
		3- Off			such as CPU, VRM, PSU, or MEMORY RISER.
		4- Blink
		1- Green
Pb14		2- Green	-	Reserved	Reserved
		3- Green
		4- Off
		1- Green
Pb15		2- Green	-	Reserved	Reserved
		3- Green
		4- Green

POST Diagnostic Light Patterns

All POST codes except S0 are accompanied by a Solid Green Power light state. If the power light is not green, see Pre-POST Diagnostic Light Patterns.

	State	Light Pattern	Light	State	State Assignment	State Description
		( 1 2 3 4 )	Description	Name
			1- Off
	S0a		2- Off	OFF	OFF	Power light Off. No power is supplied to the system.
			3- Off
			4- Off
			1- Off
	S0e		2- Off	ON	Normal Operation,	Power light Solid Green. System has successfully booted and is operating
			3- Off		ACPI S0	normally.
			4- Off
			1- Off
	S1		2- Off	RCM	System is in	BIOS checksum failure was detected and the system is now in recovery mode.
			3- Off		Recovery Mode
			4- Solid
			1- Off
	S2		2- Off	CPU	CPU	CPU configuration activity is in progress or a CPU failure was detected.
			3- Solid
			4- Off
			1- Off
	S3		2- Off	MEM	Memory	Memory subsystem configuration activity is in progress. Appropriate memory
			3- Solid			modules were detected but a memory failure has occurred.
			4- Solid
			1- Off
	S4		2- Solid	PCI	PCI device	PCI device configuration activity is in progress or PCI device failure was detected.
			3- Off
			4- Off

		1- Off
S5		2- Solid	VID	Video Card	Video subsystem configuration activity in progress or video subsystem failure.
		3- Off
		4- Solid
		1- Off
S6		2- Solid	STO	Storage	Storage device configuration in progress or storage subsystem failure.
		3- Solid
		4- Off
		1- Off
S7		2- Solid	USB	USB	USB subsystem configuration activity in progress or USB subsystem failure.
		3- Solid
		4- Solid
		1- Solid
S8		2- Off	MEM	Memory	Memory subsystem configuration activity is in progress. No memory modules were
		3- Off			detected.
		4- Off
		1- Solid
S9		2- Off	MBF	System board	Fatal system board failure detected.
		3- Off
		4- Solid
		1- Solid
S10		2- Off	MEM	Memory	Memory subsystem configuration activity is in progress. Memory modules have
		3- Solid			been detected but appear to be incompatible or in an invalid configuration.
		4- Off
		1- Solid
S11		2- Off	PRV	Other pre-video	Indicates routine system activity preceding video initialization.
		3- Solid		activity
		4- Solid
		1- Solid
S12		2- Solid	CFG	Resource	System resource configuration in progress.
		3- Off		configuration
		4- Off
		1- Solid
S13		2- Solid		Reserved	Reserved for future use. This pattern is being considered to indicate the Visual Off
		3- Off			state on the Dimension systems.
		4- Solid
		1- Solid
S14		2- Solid	POV	Other post-video	Indicates routine system activity subsequent to video initialization.
		3- Solid		activity
		4- Off
		1- Solid			Indicates End of POST process. Lights are normally in this state briefly as POST
		2- Solid
S15			STD	Boot hand off	completes. Once the hand-off to the OS is done, the lights turn off and transition
		3- Solid
					to S0e state.
		4- Solid

Beep Codes

When errors occur during a boot routine that cannot be reported on the monitor, the computer may emit a beep code that identifies the problem. The beep code is a pattern of sounds: for example, one beep followed by a second beep, then followed by a burst of three beeps (code 1-1-3) means that the computer was unable to read the data in nonvolatile random-access memory (NVRAM). If the system loses power and beeps constantly when you turn it back on, the BIOS is probably corrupted.

System Beep Codes

	Beep	Description	Beep	Description
	Code		Code
	1-1-2	CPU register test in progress	2-4-3	1st 64 K RAM chip or data line failure - bit E
	1-1-3	CMOS read/write test in progress or failure	2-4-4	1st 64 K RAM chip or data line failure - bit F
	1-1-4	BIOS ROM checksum in progress or failure	3-1-1	Slave DMA register test in progress or failure
	1-2-1	Timer Test in progress or failure	3-1-2	Master DMA register test in progress or failure
	1-2-2	DMA initialization in progress or failure	3-1-3	Master IMR test in progress or failure
	1-2-3	DMA page register read/write test in	3-1-4	Slave IMR test in progress or failure
		progress or failure
	1-3-1	RAM refresh verification in progress or failure	3-2-2	Interrupt vector loading in progress
	1-3-2	1st 64 K RAM test in progress or failure	3-2-4	Keyboard controller test in progress or failure
	1-3-3	1st 64 K RAM chip or data line failure (multi	3-3-1	CMOS power fail and checksum test in
		bit)		progress
	1-3-4	1st 64 K RAM odd/even logic failure	3-3-2	CMOS Config info validation in progress
	1-4-1	1st 64 K RAM address line failure	3-3-3	RTC/Keyboard controller not found
	1-4-2	1st 64 K RAM parity test in progress or failure	3-3-4	Screen memory test in progress or failure
	1-4-3	Fail-safe timer test in progress	3-4-1	Screen initialization test in progress or failure
	1-4-4	Software NMI port test in progress	3-4-2	Screen retrace tests test in progress or failure
	2-1-1	1st 64 K RAM chip or data line failure - bit 0	3-4-3	Search for video ROM in progress
	2-1-2	1st 64 K RAM chip or data line failure - bit 1	4-2-1	Timer tick interrupt test in progress or failure
	2-1-3	1st 64 K RAM chip or data line failure - bit 2	4-2-2	Shutdown test in progress or failure
	2-1-4	1st 64 K RAM chip or data line failure - bit 3	4-2-3	Gate A20 failure

	2-2-1	1st 64 K RAM chip or data line failure - bit 4		4-2-4	Unexpected interrupt in Protected Mode
	2-2-2	1st 64 K RAM chip or data line failure - bit 5		4-3-1	RAM test in progress or failure above address
					0FFFFh
	2-2-3	1st 64 K RAM chip or data line failure - bit 6		4-3-2	No memory in Bank 0
	2-2-4	1st 64 K RAM chip or data line failure - bit 7		4-3-3	Interval Timer Channel 2 test in progress or
					failure
	2-3-1	1st 64 K RAM chip or data line failure - bit 8		4-3-4	Time-Of-Day Clock test in progress or failure
	2-3-2	1st 64 K RAM chip or data line failure - bit 9		4-4-1	Super I/O chip failure
	2-3-3	1st 64	K RAM chip or data line failure - bit A	4-4-4	Cache test failure
	2-3-4	1st 64	K RAM chip or data line failure - bit B
	2-4-1	1st 64	K RAM chip or data line failure - bit C
	2-4-2	1st 64	K RAM chip or data line failure - bit D

Adding and Replacing Parts

Dell Precision™ T5500 Service Manual

Cover	I/O Data Cable
Battery	Chassis Intrusion Switch
Drives Bezel	Front Bezel
Hard Drive Tray	Hard Drive
Front Fan Assembly	Floppy Drive
Memory Card Reader	Optical Drive
Memory	Expansion Cards
Dual Processor Riser (Optional)	Heat Sink and Processor
System Board	Power Supply

Specifications

Dell Precision™ T5500/T5500n Service Manual

Processors		Drives
System Information		Connectors
Memory		Controls and Lights
Video		Power
Audio		Physical
Expansion Bus		Environmental
NOTE: Offerings may vary by region. For more information regarding the configuration of
your Tablet-PC, click Start	(or Start in Windows XP)® Help and Support, and then
select the option to view information about your Tablet-PC.
Processor
Processor types		Dual-Core Intel® Xeon® Processor 5500 series
		Quad-Core Intel® Xeon® Processor 5500 series
System Information
System chipset		Intel 5500/5520
Data bus width		64 bits
Memory
Memory module connectors		Six
		Nine with optional riser
Memory module capacities		1 GB, 2 GB, 4 GB, or 8 GB
Memory type		DDR3 1066 MHz SDRAM
		DDR3 1333 MHz SDRAM
		(DDR3 800 MHz capable)
Minimum memory		1 GB
Maximum memory		48 GB
		72 GB with optional riser
Video
Video type:
Discrete		PCI Express 2.0 x16 (two slots)
		NOTE: Support for two full height, full length graphics
		cards using the PCIe x16 graphics card slot.
Audio
Audio type		ADI1984A integrated audio
Expansion Bus
Bus type		PCI Express 2.0
		PCI 2.3
		PCI-X 2.0A
		SATA 1.0 and 2.0
		eSATA 2.0
		USB 2.0
Bus speed		133 MB/s (PCI)
		x1-slot bidirectional speed - 500 MB/s (PCI Express)
		x16-slot bidirectional speed - 8 GB/s (PCI Express)
		1.5 Gbps and 3.0 Gbps (SATA)
		480-Mbps high speed, 12-Mbps full speed, 1.2-Mbps
		low speed (USB)
Two PCI Express 2.0 x16 slots (video)
Connector pins		164 pins
Connector data width (maximum)		16 PCI Express lanes (each direction)
Two PCI Express 2.0 x8 slots (physical x16 connector)
Connector pins		164 pins
Connector data width (maximum)		8 PCI Express lanes (each direction)
One PCI slot
Connector pins		120 pins
Connector data width (maximum)		32 bits
One PCI-X slot
Connector pins		188 pins
Connector data width (maximum)		64 bits

Drives

Externally accessible	One 3.5-inch drive bay (FlexBay)
	Two 5.25-inch drive bays
Internally accessible	Two 3.5-inch SATA drive bays
Available devices	Up to two of the following 5.25-inch devices: SATA
	DVD-ROM/CD-RW Combo, DVD +/- RW Blu-ray™drive,
	HD/DVD Combo Blu-ray drive
	One 3.5-inch USB media card reader
	internal 1.44 MB 3.5 inch drive
	external USB 3.5 inch drive
	internal USB Flash Reader
	Up to four 3.5 inch SATA or SAS hard drives (hard
	drives may be placed in 5.25 inch bays with an
	optional adapter)
Connectors
External connectors:
Video	(Depending on video card)
	DVI connector
	Display port
Network adapter	RJ-45 connector
USB	USB 2.0 compliant
	Two internal connectors
	Two in front
	Six at the back
Audio	Stereo support integrated (5.1 channel support)
	NOTE: 5.1 channel support comes
	from an add-in card only.
Serial	One 9-pin connector; 16550C-compatible
PS/2	Two 6-pin mini-DIN connectors
System board connectors:
Serial ATA	Five 7-pin SATA connectors
Internal USB device	One 10-pin connector that can support two USB ports
Fans:
Front fan	One 7-pin connector
Card cage fan	One 7-pin connector
HDD fan	One 5-pin connector
PCI	One 120-pin connector
PCI-X	One 188-pin connector
PCI Express x8	Two 164-pin connectors (physical x16 connector)
PCI Express x16	Two 164-pin connectors
Front panel control (USB included)	One 10-pin connector
Front panel audio HDA header	One 10-pin connector
Processor	One connector
	Second connector on optional riser
Memory	Six 240-pin connectors
	Three 240-pin connectors on optional riser
Power 12 V	One 4-pin connector
	Second 4-pin connector on optional riser
Power	One 24-pin connector
Controls and Lights
Front of the computer
Power button	Push button
Power light	Amber light		Solid amber indicates a problem with an
	installed device; blinking amber indicates an internal
	power problem
	Green light		Blinking green in sleep state; solid
	green for power-on state
Drive activity light	Green light		A blinking green light indicates the
	computer is reading data from or writing data to the
	SATA hard drive or CD/DVD
Link integrity light	Green light		Solid green indicates a connection to an
	active network
	Off (no light)		System is not connected to a network
Back of the computer
Link integrity light (on integrated network adapter)	Green	A good connection at 10Mbs exists between
	the network and the computer
	Orange	A good connection at 100Mbs exists
	between the network and the computer
	Yellow A good connection at 1000Mbs exists
	between the network and the computer
	Off The computer is not detecting a physical
	connection to the network

Network activity light (on integrated network	Yellow blinking light
adapter)
Power
DC power supply:
Wattage	875 W
Voltage	100 240 VAC, 50 60 Hz, 12.0 A
Coin-cell battery	3V CR2032 lithium coin cell
Physical
Height	44.80 cm (17.60 inches)
Width	17.25 cm (6.80 inches)
Depth	46.83 cm (18.40 inches)
Weight	17.20 kg (38 lbs)
Environmental
Temperature range:
Operating	10° to 35°C (50° to 95°F)
Storage	-40° to 65°C (-40° to 149°F)
Relative humidity (maximum):	20% to 80% (noncondensing)
Maximum vibration:
Operating	5 to 350 Hz at 0.0002 G²/Hz
Storage	5 to 500 Hz at 0.001 to 0.01 G²/Hz
Maximum shock:
Operating	40 G +/- 5% with pulse duration of 2 msec +/- 10%
	(equivalent to 51 cm/sec [20 in/sec])
Storage	105 G +/- 5% with pulse duration of 2 msec +/- 10%
	(equivalent to 127 cm/sec [50 in/sec])
Altitude (maximum):
Operating	-15.2 to 3048 m (-50 to 10,000 ft)
Storage	-15.2 to 10,668 m (-50 to 35,000 ft)
Airborne contaminant level	G2 or lower as defined by ISA-S71.04-1985

Battery

Dell Precision™ T5500 Service Manual

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.

Removing the Battery

1.Follow the procedures in Before Working Inside Your Computer.

2.Remove the computer cover.

4. Use a small screw driver or a scribe to press down the coin-cell release tab.

5. Remove the coin-cell from the computer.

Cover

Dell Precision™ T5500 Service Manual

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.

Removing the Cover

1. Follow the procedures in Before Working Inside Your Computer.

2. Slide the cover release latch toward the back of the computer.

3. Draw the cover away from the computer.

4. Remove the cover from the computer.

Hard-drive Bezel

Dell Precision™ T5500 Service Manual

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.

Removing the Hard-drive Bezel

1.Follow the procedures in Before Working Inside Your Computer.

2.Remove the computer cover.

3. Press and hold the sliding-plate lever toward the base of the computer to release the drives bezel.

4. Remove the hard drive bezel.