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® ®
Dell PowerEdge 4100/180 and 4100/200 Systems
SERVICE MANUAL
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Information in this document is subject to change without notice. © 1995–1996 Dell Computer Corporation. All rights reserved. Reproduction in any manner whatsoever without the written permission of Dell Computer Corporation is strictly forbidden. Trademarks used in this text: Dell, the DELL logo, and PowerEdge are registered trademarks of Dell Computer Corporation; Intel, Pentium, and LANDesk are registered trademarks of Intel Corporation; IBM is a registered trademark of International Business
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Chapter 1 System Overview ® ® The Dell PowerEdge 4100 systems covered in this manual are high-speed, ® ® upgradable server systems, which use the Intel Pentium Pro family of microprocessors. PowerEdge 4100 systems incorporate the high-performance peripheral component interconnect (PCI) local bus as well as the extended industry-standard architecture (EISA) expansion bus. These buses are built into the system board, which integrates the microprocessor(s) and other elements of the basic comp
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• Error correction code (ECC) feature built into the memory controller on the system board • Advanced combination EISA and PCI expansion subsystem • Five PCI and three EISA expansion-card slots (none shared) • Integrated VGA-compatible video subsystem attached to the PCI bus, with 1 MB video memory standard • BIOS in upgradable flash memory attached to the EISA bus • Integrated super I/O controller attached to the EISA bus, provides a bidirectional parallel port, two serial ports, and the dis
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back of computer left side right side front of computer Figure 1-1. Computer Orientation NOTE: When following the text in this manual, assume that the location or direction relative to the system is as shown in Figure 1-1. System Overview 1-3
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power button and diskette-drive access reset button power-on indicator indicator (typical) SCSI hard-disk drive SCSI hard-disk drive SCSI hard-disk drive online indicator fault indicator activity indicator Figure 1-2. Front-Panel Features CAUTION: To avoid possible data or file structure corruptions, the front- panel reset button should be used only when restarting the system with a key combination fails. Before using the reset button to initiate a hardware reset, close any open application
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external drive bays (4) control panel expansion slots internal drive bays (6) system board hard-disk drive security lock microprocessor sockets cooling fan connectors (3) air intake panel (cooling fans are located behind the air intake panel) Figure 1-3. Front/Left Internal View System Overview 1-5
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external drive bays (4) diskette interface cable (ultra-narrow) SCSI interface connector (ultra-wide) internal drive bays (6) SCSI backplane board SCSI power connector server management connector control panel connector power supply (optional) power supply SMB connector SCSI connector port Figure 1-4. Back/Right Internal View 1-6 Dell PowerEdge 4100/180 and 4100/200 Systems Service Manual
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keylock keylock power supply (optional) video connector cable strain relief server-management serial port connector parallel port connector power supply serial port 2 connector serial port 1 connector red LED mouse connector keyboard connector green LED AC power receptacle SMB connector SCSI connector port security cable slot Figure 1-5. I/O Panel System Overview 1-7
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System Memory The PowerEdge 4100 systems have a minimum of 64 MB of 72-bit-wide, buff- ered EDO memory. The system memory capacity can be expanded to 1024 MB (1 GB) by using combinations of 32- and 128-MB buffered, EDO dual in-line memory modules (DIMMs) having gold connectors. The system board has eight 168-pin DIMM sockets. The socket population rules for the DIMMs are as follows: • Populate the DIMM sockets in order from DIMM A (upper) to DIMM H (lower). • The DIMMs should be obtained fr
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Video Controller The video subsystem is built into the system board and consists of a high-speed, high-resolution, VGA-compatible video subsystem. The video controller is con- nected to the PCI local bus. The standard video subsystem contains 1 MB of DRAM memory (the video memory size is not upgradable). Maximum noninterlaced resolutions are 640 x 480 pixels with 16.7 million col- ors, 800 x 600 pixels with 65,536 colors, and 1024 x 768 pixels with 256 colors. Integrated SCSI Controllers
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SCSI ID Numbers Each device attached to the 7860 Ultra/Narrow SCSI host adapter must have a unique SCSI ID number from 0 to 7. For additional SCSI addressing informa- tion, see Chapter 10, “Installing Drives in the Internal Bays,” in the Installation and Troubleshooting Guide. When narrow SCSI devices are shipped from Dell, the default SCSI ID numbers are assigned as follows: • The computer’s built-in Ultra/Narrow SCSI host adapter is configured through the BIOS as SCSI ID 7. • A SCSI CD-
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System Unit The following subsections provide service-related information about the system unit. System Power Supply The 500-W system power supply can operate from an AC power source of 90 to 265 VAC at 50 or 60 Hz. When the power-supply paralleling board is installed, the power supplies are hot-pluggable. When the red LED on the power supply is lit (except during power-up), it indicates that the power supply has failed (see Figure 1-5). When the green LED is lit, it indicates t
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Pin Assignments for the DC Power Connectors (Nonredun- dant Systems) The power-supply output voltages for nonredundant systems can be measured at the connectors on the back of the power supply (P1, P2, P3, P4, and P5) or at the connectors on the power connector panel (J11, J12, J13, J14, and J15). The following illustrations show both sets of connectors. P2 P1 P5 P4 P3 Figure 1-6. Power Supply Connectors J12 (P2) J11 (P1) J15 (P5) J14 (P4) J13 (P3) Figure 1-7. Power Connect
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+5 VDC (red) +5 VDC (red) +5 VDC (red) –5 VDC (white) +5 VDC (red) common (black) +5 VDC (red) common (black) +3.3 VDC (orange) common (black) 1 +3.3 VDC (orange) PSON# (gray) 13 14 15 16 17 18 19 20 21 22 23 24 J11 (P1) 6 1 2 3 4 5 7 8 9 10 11 12 +3.3 VDC (orange) +5 VDC (red) common (black) +3.3 VDC sense (orange) +5 VDC sense (red) common (black) –sense (black) common (black) 2 PWRGOOD (orange) -12 VDC (blue) +12 VDC (yellow) +5 VFP (purple) 1 Pin 13 — PSON# should measure between +4 and +
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+5 VDC (red) common (black) common (black) common (black) common (black) common (black) common (black) +5 VDC (red) common (black) 10 11 12 13 14 15 16 17 18 J12 (P2), J13 (P3), J14 (P4) 1 2 3 4 5 6 7 8 9 +3.3 VDC (orange) +5 VDC (red) +12 VDC (yellow) +3.3 VDC (orange) +3.3 VDC (orange) +12 VDC (yellow) +5 VDC (red) +5 VDC (red) +5 VDC (red) Figure 1-9. DC Power Connectors J12 (P2), J13 (P3), and J14 (P4) +SW1 +12 VDC (red) +3.3 VDC (orange) Fail LED cathode (red) Good LED cathode (green) 6
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DC Power Distribution (Nonredundant System) Figures 1-11 provides information about DC power distribution for the nonredundant PowerEdge 4100 system. P1 system board keyboard controller NRLED P1–5 PWRGOOD power battery PSON# PSON# RTC/ management +5 VFP NVRAM PCI4 +5 VFP logic +3.3 VDC through power +5 VDC +5 VDC +5 VDC PCI8 +12 VDC supply # 1 –5 VDC –5 VDC PWRGOOD –12 VDC +12 VDC +12 VDC PSON# –12 VDC –12 VDC +5 VFP +3.3 VDC +5 VDC +3.3 VDC EISA1 +5 VDC –5 VDC –5 VDC through P2 +12 VDC +12 VD
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Pin Assignments for the DC Power Connectors (Redundant Systems) The power-supply output voltages for redundant systems can be measured at the connectors on the power-supply paralleling board (PWR1, PWR2, PWR3, PWRSCSI, and PWRFD) or at the connectors on the end of the wire bundles extending from these connectors (PWR1, PWR2, PWR3, DDBP, and FD1–FD4). PWR1 PWRFD (FD1–FD4) PWR2 PWR3 PWRSCSI (DDBP) diagnostics port Figure 1-12. Power-Supply Paralleling Board Connectors 1-16
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NC_3INH common (black) +3.3 VDC sense (orange) -3.3 VDC sense (black) POWER_GOOD (gray) FAN_TACH (gray) common (black) NC_NRLED +5 VFP (violet) 10 11 12 13 14 15 16 17 18 PWR1 1 2 3 4 5 6 7 8 9 BAT_V (gray) -12 VDC (blue) -5 VDC (white) PRES_DET (gray) NC_+12 sense PWR_STAT_BIT (gray) 2 I C_SDA (gray) +5 VDC sense (red) 2 I C_SCL (gray) Figure 1-13. DC Power Connector PWR1 +3.3 VDC (orange) common (black) +3.3 VDC (orange) common (black) common (black) +12 VDC (yellow) +3.3 VDC (orange) com
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common (black) common (black) common (black) common (black) common (black) common (black) common (black) 8 9 10 11 12 13 14 PWRSCSI (DDBP) 1 2 3 4 5 6 7 +12 VDC (yellow) +12 VDC (yellow) +5 VDC (red) +5 VDC (red) +12 VDC (yellow) +12 VDC (yellow) +5 VDC (red) Figure 1-15. DC Power Connector PWRSCSI (DDBP) +12 VDC (yellow) common (black) common (black) +5 VDC (red) 2 5 6 7 8 PWRFD (FD1–FD4) 1 1 4 2 3 +5 VDC (red) common (black) common (black) +12 VDC (yellow) 1 Wires 1 through 4 are connected
