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Dell™ Dimension™ 1100/B110 Systems Service Manual
Before You Begin
Removing the Computer Cover
Technical Overview
Technical Specifications
Advanced Troubleshooting
System Setup
Removing and Installing Parts
Replacing the Computer Cover
Notes, Notices, and Cautions
NOTE: A NOTE indicates important information that helps you make better use of your computer.
NOTICE: A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the
problem.
CAUTION: A CAUTION ind
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Back to Contents Page Before You Begin Dell™ Dimension™ 1100/B110 Systems Service Manual Getting Started Recommended Tools Turning Off Your Computer Before Working Inside Your Computer Getting Started This chapter provides procedures for removing and installing the components in your computer. Unless otherwise noted, each procedure assumes that the following conditions exist: You have performed the steps in Turning Off Your Computer and Before Working Inside Your Computer. You have read
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Use the following safety guidelines to help protect your computer from potential damage and to help ensure your own personal safety. CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide. CAUTION: Handle components and cards with care. Do not touch the components or contacts on a card. Hold a card by its edges or by its metal mounting bracket. Hold a component such as a processor by its edges, not by its pins. NOT
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Back to Contents Page Removing the Computer Cover Dell™ Dimension™ 1100/B110 Systems Service Manual CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide. CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover. 1. Follow the procedures in Before You Begin. 2. Lay your computer on its side with the computer cover facing up. 3. If your computer
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Back to Contents Page Technical Overview Dell™ Dimension™ 1100/B110 Systems Service Manual Inside View of Your Computer System Board Components Power Supply DC Connector Pin Assignments Inside View of Your Computer CAUTION: Before you begin any of the procedures in this section, see the safety instructions located in the Product Information Guide. CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the computer cover. System Bo
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Power Supply DC Connector Pin Assignments
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The 250-W power supply can operate from an AC power source of 115 VAC or 230 VAC at 50 – 60 Hz. The power supply provides the DC operating voltages and currents listed in the following table. 1 2 Minimum Current (A) Output Voltage Maximum Current (A) 3 +12 VDC 0.0 16.0 4 +5 VDC 22.0 1.0/0.2 5 +3.3 VDC 18.0 0.1/0.0 - - - –12 VDC 0.0 1.0 +5 VFP 0.0 2.0 1 Outputs will meet and not exceed SELV requirements per electrical standards, i.e. UL 60950, IEC 60950, EN60950 PAR.2.3. 2 Maximum continuous comb
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is in a zero load condition. DC Power Connector P1 NOTE: The +3.3 VDC output wires (orange) must be 16 AWG. All other output wires must be 18 AWG. Pin Number Signal name Wire Color 1 +3.3 VDC Orange 2 +3.3 VDC Orange 3 COM Black 4 +5 VDC Red 5 COM Black 6 +5 VDC Red 7 COM Black 8 POK Gray 9 +5 VFP Purple 10 +12 VDC Yellow 11 +3.3 VDC Orange 12 –12 VDC Blue 13 COM Black 14 PS_ON Green 15 COM Black 16 COM Black 17 COM Black 18 N/C N/C 19 +5 VDC Red 20 +5 VDC Red DC Power Connector P2
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Pin Number Signal Name 18-AWG Wire Color 1 COM Black 2 COM Black 3 +12 VDC Yellow 4 +12 VDC Yellow DC Power Connectors P8 and P9 Pin Number Signal Name 18-AWG Wire Color 1 +12 VDC Yellow 2 COM Black 3 COM Black 4 +5 VDC Red DC Power Connector P4 Pin Number Signal Name 18-AWG Wire Color 1 - No connect 2 COM Black 3 COM Black 4 +3.3 VDC Orange 5 +5 VDC Red 6 +12 VDC Yellow DC Power Connector P6
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Pin Number Signal Name 18-AWG Wire Color 1 +12 VDC Yellow 2 COM Black 3 COM Black 4 +5 VDC Red DC Power Connector P7 Pin Number Signal Name 22-AWG Wire Color 1 +5 VDC Red 2 COM Black 3 COM Black 4 +12 VDC Yellow Back to Contents Page
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Back to Contents Page Technical Specifications Dell™ Dimension™ 1100/B110 Systems Service Manual Processor ® Processor type Intel® Pentium 4 with HT Technology ® and Intel Celeron NOTE: Not all Pentium 4 processors support Hyper-Threading technology. Level 1 (L1) cache 8 KB Level 2 (L2) cache 128-KB or 512-KB (depending on your computer configuration) pipelined-burst, eight-way set associative, write-back SRAM Memory Type 333- and 400-MHz DDR SDRAM NOTE: DDR333 and DDR400 memory runs at 266MHz
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Intel Celeron: 533 MHz Video Type Integrated Intel Extreme Graphics 2 Audio Type AC97, Sound Blaster Emulation, ADI 1980 audio controller with 2.1 implementation Expansion Bus Bus type PCI Bus speed 33 MHz PCI connectors three connector size 120 pins connector data width (maximum) 32 bits Drives Externally accessible: One bay for a floppy drive, and two bays for CD/DVD drives Available devices Floppy drive, USB memory devices, CD drive, CD-RW drive, DVD drive, DVD-RW drive, and DVD and CD
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Secondary IDE drive 40-pin connector on PCI local bus Floppy drive 34-pin connector CD Audio 4-pin connector Fan 3-pin connector Controls and Lights Power control Push button Hard-drive access light Green Link integrity light (on integrated network No light for 10-Mb operation; green light adapter) for 100-Mb operation Activity light (on integrated network Yellow blinking light adapter) Diagnostic lights Four lights on the back panel Power DC power supply: Wattage 250 W Heat dissipation 853 BT
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Maximum shock: Operating 105 G, 2 ms Storage 32 G with a velocity change of 596.9 cm/sec (235 inches/sec) Altitude: Operating –15.2 to 3048 m (–50 to 10,000 ft) NOTE: At 30°C (95°F), the maximum operating altitude is 914 m (3000 ft). Storage –15.2 to 10,670 m (–50 to 35,000 ft) Back to Contents Page
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Back to Contents Page Advanced Troubleshooting Dell™ Dimension™ 1100/B110 Systems Service Manual Power Lights Network Lights Diagnostic Lights Beep Codes System Messages Power Lights The power button light located on the front of your computer illuminates and blinks or remains solid to indicate different states: If the power light is green, the power status is good and the computer is functioning properly. If the power light is green and the computer is not responding, see Network Lig
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Yellow LED on on off off off Green LEG Diagnostic Lights CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide. To help you troubleshoot a problem, your computer has four lights labeled "A," "B," "C," and "D" on the back panel. The lights can be yellow or green. When the computer starts normally, the lights flash. After the computer starts, all four lights display solid green. If the computer malfunctions, the col
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occurred. 2. If the problem persists, reinstall the card that you removed, remove a different card, and then restart the computer. 3. Repeat this process for each card. If the computer starts normally, troubleshoot the last card removed from the computer for resource conflicts. 4. If the problem persists, see "Contacting Dell" in your Owner's Manual for instructions on obtaining technical assistance. Another failure has Ensure that the cables are properly connected to the system board from occur
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3-1-1 Slave DMA register failure 3-1-2 Master DMA register failure 3-1-3 Master interrupt mask register failure 3-1-4 Slave interrupt mask register failure 3-2-2 Interrupt vector loading failure 3-2-4 Keyboard Controller Test failure 3-3-1 NVRAM power loss 3-3-2 NVRAM configuration 3-3-4 Video Memory Test failure 3-4-1 Screen initialization failure 3-4-2 Screen retrace failure 3-4-3 Search for video ROM failure 4-2-1 No time tick 4-2-2 Shutdown failure 4-2-3 Gate A20 failure 4-2-4 Unexpected int
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CMOS program is incorrect or the computer. Checksum battery charge may be low. Failure CMOS System Options Not Set CMOS Display Type Mismatch CMOS Memory Size Mismatch CMOS Time and Date Not Set Diskette Drive A or B is present but has Ensure that the drive is installed correctly in Boot Failure failed the BIOS POST. the computer and defined correctly in the system setup program. Check the interface cable at both ends. DMA Error Error in the DMA controller on The keyboard or system board may nee
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Back to Contents Page System Setup Dell™ Dimension™ 1100/B110 Systems Service Manual Overview Entering System Setup System Setup Screens System Setup Options Boot Sequence Clearing Forgotten Passwords Overview Use system setup as follows: To change the system configuration information after you add, change, or remove any hardware in your computer To set or change a user-selectable option such as the user password To read the current amount of memory or set the type of hard drive ins
