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1-14

AlphaServer DS20

Service Manual

1.7

Memory Addressing and Data Location

Memory addressing is contiguous beginning with memory bank 0. The first
address of each bank is one above the ending address of the previous bank.
Data is located in DIMMs as described by Figure 1-7.

Figure 1-7 Contents of DIMMs

C
Chip

D
Chip

D
Chip

D
Chip

D
Chip

D
Chip

D
Chip

D
Chip

D
Chip

Bank 0 even bytes 16, 18, 20, 22, 24, 26, 28, 30

Bank 0 even bytes 0, 2, 4, 6, 8, 10, 12, 14

Bank 1 even bytes 16, 18, 20, 22, 24, 26, 28, 30

Bank 1 even bytes 0, 2, 4, 6, 8, 10, 12, 14

Bank 2 even bytes 16, 18, 20, 22, 24, 26, 28, 30

Bank 2 even bytes 0, 2, 4, 6, 8, 10, 12, 14

Bank 3 even bytes 0, 2, 4, 6, 8, 10, 12, 14

Bank 3 even bytes 16, 18, 20, 22, 24, 26, 28, 30

Bank 0 odd bytes 1, 3, 5, 7, 9, 11, 13, 15

Bank 0 odd bytes 17, 19, 21, 23, 25, 27, 29, 31

Bank 1 odd bytes 1, 3, 5, 7, 9, 11, 13, 15

Bank 1 odd bytes 17, 19, 21, 23, 25, 27, 29, 31

Bank 2 odd bytes 17, 19, 21, 23, 25, 27, 29, 31

Bank 2 odd bytes 1, 3, 5, 7, 9, 11, 13, 15

Bank 3 odd bytes 1, 3, 5, 7, 9, 11, 13, 15

Bank 3 odd bytes 17, 19, 21, 23, 25, 27, 29, 31

DIMM Slots

DIMM Slots

DIMM Contains

PK1488-98

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23
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Содержание AlphaServer DS20

Страница 1: ...r Number EK AS140 SV A01 This manual is for anyone who services this system It includes troubleshooting information configuration rules and instructions for removal and replacement of field replaceabl...

Страница 2: ...or registered trademarks of their respective companies Digital Equipment Corporation now owned by Compaq Computer Corporation FCC Notice The equipment described in this manual generates uses and may e...

Страница 3: ...1 26 1 10 Power Circuit and Cover Interlock 1 28 1 11 Power Supply 1 30 1 12 Power Up Down Sequence 1 32 1 13 TIG Bus 1 34 1 14 Maintenance Bus I 2 C Bus 1 36 1 15 StorageWorks Drives 1 38 Chapter 2...

Страница 4: ...t 4 16 4 9 Power Supply Removal and Replacement 4 18 4 10 Power Harness Removal and Replacement 4 20 4 11 Power Transition Module Removal and Replacement 4 22 4 12 Auxiliary Fan Removal and Replacemen...

Страница 5: ...Firmware from a Network Device C 14 C 1 5 LFU Commands C 18 Examples 1 1 Show Memory 1 15 2 1 Power Up Display 2 6 2 2 Test Command Syntax 2 8 2 3 Sample Test Command 2 9 2 4 Show Power 2 11 2 5 Show...

Страница 6: ...I 2 C Bus Block Diagram 1 36 1 20 StorageWorks Drive Location 1 38 2 1 Control Panel and LCD Display 2 4 2 2 CPU and Server Feature Module LEDs 2 12 2 3 Compaq Analyze Graphics Interface 2 14 4 1 Som...

Страница 7: ...atus Register 3 4 3 3 Dcache Status Register 3 6 3 4 Cbox Read Register 3 7 3 5 Miscellaneous Register 3 10 3 6 Device Interrupt Request Register 3 12 3 7 Pchip Error Register 3 14 3 8 Failure Registe...

Страница 8: ......

Страница 9: ...It describes each system component Chapter 2 Troubleshooting describes troubleshooting during power up and booting as well as the test command Chapter 3 Error Registers describes the error registers u...

Страница 10: ...ice Information Service Manual EK AS140 SV Information on the Internet Using a Web browser you can access the AlphaServer InfoCenter at http www digital com info alphaserver products html Access the l...

Страница 11: ...19 rack AlphaServer DS20 systems support OpenVMS Compaq Tru64 UNIX Windows NT and Linux Topics in this chapter include the following System Enclosure Operator Control Panel and Drives System Consoles...

Страница 12: ...anual 1 1 System Enclosure The system has up to two CPU modules and up to 4 Gbytes of memory A single fast wide UltraSCSI StorageWorks shelf provides up to 128 Gbytes of storage Figure 1 1 System Encl...

Страница 13: ...ning two fans and the server feature module StorageWorks shelf Cover Interlock The system has a single cover interlock switch tripped by the top cover Figure 1 2 Cover Interlock Circuit Cover Interloc...

Страница 14: ...a 16 character LCD that indicates status during power up and self test While the operating system is running the LCD displays the system type Its controller is on the XBUS CD ROM The CD ROM drive is...

Страница 15: ...urn the system to the SRM console To get to the SRM console for systems running OpenVMS or Compaq Tru64 UNIX press the Halt button To get to the SRM console for systems running Windows NT press the Ha...

Страница 16: ...m the following console prompt is displayed after system startup messages are displayed or whenever the SRM console is invoked P00 NOTE The console prompt displays only after the entire power up seque...

Страница 17: ...iables are software parameters that define among other things the system configuration They are used to pass information to different pieces of software running in the system at various times The os_t...

Страница 18: ...ed through a switch based interconnect implemented in a cross bar switch chipset Figure 1 4 Block Diagram C chip CPU 1 optional CPU 0 B cache B cache 8 D chips P chip P chip 1 or 2 Memory Banks Up to...

Страница 19: ...lines from the C chip to each memory array Two 64 bit PCI buses with three PCI option slots each One ISA bus bridged on PCI0 and two SCSI ports unused at FRS also on PCI0 If an ISA option is used PCI...

Страница 20: ...ant Figure 1 5 CPU Module Placement CPU 0 CPU 1 C Chip D Chip D Chip D Chip D Chip D Chip D Chip D Chip D Chip P Chip P Chip PKW1401A 98 0 0 1 1 2 2 3 3 0 0 1 1 2 2 3 3 PCI 0 Slot 7 PCI 0 Slot 8 PCI 0...

Страница 21: ...te through first level data cache bus interface unit that consists of two ports one a 16 byte B cache port and the other an 8 byte system port CPU Variants Module Variant Clock Frequency Onboard Cache...

Страница 22: ...our option variants 128 Mbytes 256 Mbytes 512 Mbytes and 1 Gbyte Figure 1 6 Memory Placement CPU 0 CPU 1 C Chip D Chip D Chip D Chip D Chip D Chip D Chip D Chip D Chip P Chip P Chip PKW1401B 98 2 2 0...

Страница 23: ...on Two 256 bit memory buses transfer data between the cross bar chipset switch and main memory Each DIMM bank made up of four DIMM modules provides the data or 256 bits plus 32 ECC bits of the 32 byte...

Страница 24: ...n bytes 0 2 4 6 8 10 12 14 Bank 1 even bytes 16 18 20 22 24 26 28 30 Bank 1 even bytes 0 2 4 6 8 10 12 14 Bank 2 even bytes 16 18 20 22 24 26 28 30 Bank 2 even bytes 0 2 4 6 8 10 12 14 Bank 3 even byt...

Страница 25: ...splay System Configuration F1 Help Systemboard Configuration Hard Disk Configuration PCI Configuration SCSI Configuration ISA Configuration Memory Configuration Integrated Peripherals System Memory Co...

Страница 26: ...ip D Chip D Chip D Chip D Chip P Chip P Chip PK1491 98 0 0 1 1 2 2 3 3 0 0 1 1 2 2 3 3 PCI 0 Slot 7 PCI 0 Slot 8 PCI 0 Slot 9 PCI 1 Slot 7 PCI 1 Slot 8 PCI 1 Slot 9 ISA Slot Even bytes of all memory b...

Страница 27: ...17 Three major sections on the system board are The cross bar switch chipset and the system components attached to it CPU s memory PCI chips and the TIG bus The power connections and voltage regulator...

Страница 28: ...f the D chips are two system buses to CPUs two PAD buses to PCI chips and two memory data buses that connect to up to four memory banks Figure 1 10 Cross Bar Switch Data Block Diagram 38 38 3FKLS 3FKL...

Страница 29: ...ash ROM data system diagnostics and console programs and system interrupts The cross bar switch is controlled by the C chip which synchronizes along with the clock the D chips the CPUs memory and the...

Страница 30: ...gle ISA slot the other bus has three PCI option slots Figure 1 11 PCI Block Diagram PCI 1 PCI 0 3 64 bit slots 3 64 bit slots 3 XV PCI 1 Bus PK1494 98 P Chip PCI 1 P Chip PCI 0 1 ISA Slot ADAPTEC Ultr...

Страница 31: ...and the USB bus The IDE bus and the USB bus are not used Connected to the ISA bus is an Adaptec UltraSCSI controller with two ports also not used PCI1 is a 64 bit bus with three PCI slots The cable c...

Страница 32: ...control the writing of the flash ROM and the speed of the crossbar switch among other things Figure 1 12 Switchpack Location CPU 0 CPU 1 D Chip D Chip P Chip P Chip PK1410 99 SW2 SW2 SW3 SW3 System Bo...

Страница 33: ...7 Switches 5 6 and 7 create a field that defines the speed at which the cross bar switch runs Switches 5 and 6 are on and switch 7 is off 8 AlphaBIOS Password bypass Off default Normal operation On B...

Страница 34: ...s remote control operation of the system A four switch switchpack enables or disables remote control features Figure 1 13 Server Feature Module Power Connector Switchpack Interlock Connector Sys Fan O...

Страница 35: ...ote power down Enables remote power down 4 SET DEF On Off default Resets the RCM microprocessor defaults Allows use of conditions set by the user The default settings allow complete remote control The...

Страница 36: ...Control Logic The power control logic is on the server feature module Figure 1 14 Power Control Logic Power Connector Switchpack Interlock Connector Sys Fan OK CPU Fan OK Temp OK RCM Connector Fan Co...

Страница 37: ...of the environment variable over_temp Default 55 0 C Monitors the system and CPU fans and powers down the system 30 seconds after it detects a fan failure Provides some visual indication of faults th...

Страница 38: ...stributed throughout the system and mechanically can be broken by the On Off switch the cover interlock or remotely through the RCM Figure 1 15 Power Circuit Diagram Cover Interlock OCP Push button ON...

Страница 39: ...ption to the DC power applied to the system A failure anywhere in the circuit will result in the removal of DC power A potential failure is the relay used in the remote control logic to control the RC...

Страница 40: ...vice Manual 1 11 Power Supply Two power supplies provide system power Figure 1 16 Back of Power Supply and Location Current share 5V Return 5V Return 3 4V Return 12V Return Misc Signal PK1495 98 Power...

Страница 41: ...on 5 0V and 3 3V 5 0V is sensed on the system board 3 3V is sensed on the system board Current share on 5 0V 3 3V and 12V 3 regulation on 3 3V Fault protection latched If a fault is detected by the po...

Страница 42: ...ower up down sequence flow is shown below Figure 1 17 Power Up Down Sequence Flowchart Apply AC Power Vaux on Assert DC_ENABLE_L Power Supply Starts Disable Outputs Deassert POK Assert SHUTDOWN 30 Sec...

Страница 43: ...ard fault on power up the power supplies shut down immediately otherwise the power system powers up and remains up until the system is shut off or the server feature module senses a fault If a power f...

Страница 44: ...number of functions it carries all system interrupts timing signals and provides the path to the diagnostic and console flash ROMs Figure 1 18 TIG Bus Block Diagram C Chip P Chip D Chips CPU s CAP Bu...

Страница 45: ...console firmware sits on the TIG bus This is different from the AS 1200 where the flash ROM sat on the I 2 C bus Still a good deal of logic has to function for the diagnostics to run Configuration Reg...

Страница 46: ...e module log error state and track system configuration information There is a private I 2 C bus between memory and the C chip used to provide memory configuration information to the consoles and oper...

Страница 47: ...own In the event of imminent power loss the controller has 30 seconds to read the two registers and store the information in the NVRAM on the server feature module The SRM console command show power r...

Страница 48: ...1 38 AlphaServer DS20 Service Manual 1 15 StorageWorks Drives The system supports up to seven StorageWorks drives Figure 1 20 StorageWorks Drive Location PKW0514 97 StorageWorks Drives Shelf...

Страница 49: ...the right of the system cage Up to seven drives fit into the shelf The system supports fast wide UltraSCSI disk drives The RAID controller is also supported With an optional UltraSCSI Bus Splitter Kit...

Страница 50: ......

Страница 51: ...rvice related console commands A Compaq Analyze example is also provided The following topics are covered Troubleshooting During Power Up Control Panel Display and Troubleshooting Power Up Display and...

Страница 52: ...roblem 7 Interlock switch activation or failure 8 Environmental electrical failure or unrecoverable system fault with auto_action ev halt or boot 9 Cable failure Indication of failure LEDs on the serv...

Страница 53: ...pha Systems Firmware Update Version V5 4 minimum rev CD in the CD ROM drive and copy the file PC264SRM ROM found in the DS20 subdirectory onto a floppy renaming the file to DP264SRM ROM 2 Insert the f...

Страница 54: ...hen the On Off button LED is on power is applied and the system is running When it is off the system is not running but power may or may not be present If the power supplies are receiving AC power Vau...

Страница 55: ...oth B cache and memory is being tested Additional hardware involved Backup cache on the CPU module D chips memory DIMMs Compaq Firmware Firmware loading Additional hardware involved TIG bus Compaq Err...

Страница 56: ...up status also is seen on the control panel display Example 2 1 Power Up Display 512 Meg of system memory probing hose 1 PCI bus 0 slot 7 pka QLogic ISP1040 bus 0 slot 8 ewa DECchip 21140 AA probing...

Страница 57: ...robed and the devices are reported I O adapters are configured At a minimum the devices are responding to probes by the console program The system disks and network are tested by the console The SRM c...

Страница 58: ...0 P00 P00 SYNOPSIS test lb t time The entire system is tested by default NOTE If you are running the Microsoft Windows NT operating system switch from AlphaBIOS to the SRM console in order to enter th...

Страница 59: ...2321536 00001c80 exer_kid dkb100 1 0 9 0 0 0 0 4915200 00001c83 exer_kid dkb200 2 0 9 0 0 0 0 4898816 00001c85 exer_kid dkb300 3 0 9 0 0 0 0 4898816 00001cc7 exer_kid dke0 0 0 200 0 0 0 0 6144000 0000...

Страница 60: ...2 0 0 1442840576 1442840576 00001c80 exer_kid dkb100 1 0 9 0 0 0 0 28852224 00001c83 exer_kid dkb200 2 0 9 0 0 0 0 28852224 00001c85 exer_kid dkb300 3 0 9 0 0 0 0 28852224 00001cc7 exer_kid dke0 0 0 2...

Страница 61: ...7 degrees C System shutdown temperature is set to 55 degrees C 1 Environmental events are logged in nvram Do you want to view the events Y N y Total Environmental Events 1 1 logged 1 NOV 11 18 00 Syst...

Страница 62: ...options Although system LEDs are not visible when the side panels are on they can be viewed when the card cage side of the system is exposed and the top cover is on There are LEDs on the CPU and serv...

Страница 63: ...m could be the power harness the power translation board the power supply or the server feature module If the Sys Fan OK LED is off a system fan is broken Use the show power command to determine which...

Страница 64: ...output is shown here For information on installing running and learning about Compaq Analyze go to http www evnrud cxo dec com desta kits htm 2 8 1 Compaq Analyze Graphics Interface GUI Compaq Analyz...

Страница 65: ...ound When an error is detected it is reported to the console with a series of problem found statements In this case an uncorrectable system fan 0 error detected was logged a couple of times in the eve...

Страница 66: ...Time of Error Thu 11 Mar 1999 12 43 58 0500 Brief Description An uncorrectable system fan 0 error detected Callout ID 0020050000072E05 Severity 2 Reporting Node enugu Full Description An uncorrectabl...

Страница 67: ...lphaServer DS20 CEH_Device 35 Chip_Type 8 8 EV6 CEH_Device_ID_0 x0000FFFF CEH_Device_ID_1 x00000000 CEH_Device_ID_2 x00000000 Unique_ID_Count 2 Unique_ID_Prefix 15008 Num_Strings 2 Event_Header_UNIX_W...

Страница 68: ...0 Environ_QW_1 x0000000000000009 Environ_QW_2 x000000000000004F Environ_QW_3 x0000000000000000 Environ_QW_4 x0000000000000000 Environ_QW_5 x0000000000000000 Environ_QW_6 x0000000000000000 Environ_QW_7...

Страница 69: ...more information see the Regatta Platform Fault Management Specification Table 2 2 Types of Errors Error Event Description MCHK 670 Processor Machine checks These are synchronous errors that inform p...

Страница 70: ...ogin Please enter password xxxx P00 User mode SRM console commands are now available P00 set secure The console command login clears secure If the password has been forgotten and the system is in secu...

Страница 71: ...rs used to hold error information Ibox Status Register I_STAT Memory Management Status Register MM_STAT Dcache Status Register DC_STAT Cbox Read Register Miscellaneous Register MISC Device Interrupt R...

Страница 72: ...ectable Machine Check Error Logout frame 61 0 32 PK1414 99 30 31 29 28 TPE DPE Table 3 1 Ibox Status Register Name Bits Type Description Reserved 63 31 RO Reserved for Compaq DPE 30 W1C Icache data pa...

Страница 73: ...am TB miss or fault occurs information about the error is latched in MM_STAT This register is not updated when a LD_VPTE gets a DTB miss instruction The register is read only by PALcode and is an elem...

Страница 74: ...ctable The virtual address associated with the error is available in the VA register OPCODE 9 4 RO Opcode of the instruction that caused the error HW_LD is displayed as 3 and HW_ST is displayed as 7 F...

Страница 75: ...ster If a Dcache tag parity error or data ECC error occurs information about the error is latched in this register The register is read only by PALcode and is an element in the CPU or System Uncorrect...

Страница 76: ...ECC error occurred while processing a load from the Dcache or any fill ECC_ERR _ST 2 W1C ECC error on store When set indicates that an ECC error occurred while processing a store TPERR_P1 1 W1C Tag pa...

Страница 77: ...QW in the OW of victim that was scrubbed C_SYNDROME_0 7 0 Syndrome for the lower QW in the OW of victim that was scrubbed Bits Error status 00000 Either no error or error on a speculative load of a B...

Страница 78: ...M_ERR or xxx_BC_ERR then C_STAT contains the status of the block as follows otherwise the value of C_STAT is X Bit valus Status of block 7 4 Reserved 3 Parity 2 Valid 1 Dirty C_STAT 3 0 0 Shared C_ADD...

Страница 79: ...e NXS field is locked It is unlocked when software clears the NXM field The ABW arbitration won field is locked if either ABW bit is set so the first CPU to write it locks out the other CPU Writing a...

Страница 80: ...7 25 MBZ RAZ 0 Reserved ACL 24 WO 0 Arbitration clear writing a 1 to this bit clears the ABT and ABW fields ABT 23 20 R W1S 0 Arbitration try writing a 1 to these bits sets them ABW 19 16 R W1S 0 Arbi...

Страница 81: ...tinued Name Bits Type Initial State Description ITINTR 7 4 R W1C 0 Interval timer interrupt pending one bit per CPU Pin irq 2 is asserted to the CPU corresponding to a 1 in this field RES 3 2 MBZ RAZ...

Страница 82: ...801 A000 0280 CPU0 801 A000 02C0CPU1 Access RO 32 0 PK1418 99 31 58 57 56 55 63 ERR 00 Reserved IRQ1 PCI interrupts pending IRQ1 PCI interrupts pending Table 3 6 Device Interrupt Request Register Nam...

Страница 83: ...the 11 0 bits set the associated information is captured in bit 63 16 After the information is captured the INV bit is cleared but the information is not valid and should not be used if INV is set Ad...

Страница 84: ...en one of bits 11 0 is set Indicates the validity of SYN CMD and ADDR bits Valid 0 Invalid 1 ADDR 50 16 RO 0 If CRE or UECC then ADDR 50 19 system address 34 3 of erroneous quadword and ADDR 18 16 0 I...

Страница 85: ...5 R W1C 0 Address parity error detected as potential PCI target SGE 4 R W1C 0 Scatter gather had invalid page table entry DCRTO 3 R W1C 0 Delayed completion retry timeout as PCI target PERR 2 R W1C 0...

Страница 86: ...r supply failures are identified and reported to the operating system thus notifying it that the system will shut down in 30 seconds The results of reading this register are displayed by the SRM show...

Страница 87: ...failed Which failed is determined by the state of SYSFAN_OK and CPUFANS_OK in the Function Register PS1_PRESENT_L FAN TRAY 4 RO X If the bit is clear either power supply 1 or the system fan tray is pr...

Страница 88: ...mined limits When such an interrupt is generated the contents of bits 0 1 2 and 5 in the Failure Register are frozen The system will shut down 30 seconds after the interrupt is posted The results of r...

Страница 89: ...upply 0 is functioning properly FANTRAY_FAIL_H 4 RO X When clear indicates that the fantray if present is functioning properly CPUFANS_OK 3 RO X When set indicates that the fans on CPU heatsinks are f...

Страница 90: ......

Страница 91: ...auxiliary power is still supplied to the system To remove all power unplug the power supply Note though that unplugging the system will turn off LEDs that could identify the problem When the system in...

Страница 92: ...e 4 1 lists the part numbers of the field replaceable units Figure 4 1 Some of the FRU Locations Floppy CD ROM I O Options Power Supply Auxiliary Fan or Optional Power Supply SCSI Disks OCP and Displa...

Страница 93: ...splay and Support Hardware 54 25756 01 D02 System board 54 25580 01 Server feature module RX23L AC Floppy RRD47 AC CD ROM 54 23302 02 OCP assembly 70 31349 01 Speaker assembly Fans 70 31351 01 02 Cool...

Страница 94: ...ler UltraSCSI bus extender 17 04022 03 68 pin connector cable UltraSCSI bus extender SCSI backplane signal connector 17 04021 01 68 pin conn jumper SCSI backplane SCSI backplane 17 04795 01 68 pin con...

Страница 95: ...l cable SCSI backplane CD ROM signal connector 17 04735 01 24 pin power harness Power supply Power transition module 70 33578 01 Power harness Power transition Power supply 3 connectors on sys board c...

Страница 96: ...nual 4 3 System Access Three sheet metal covers one on top and one on each side when removed provide access to the system card cage and the power SCSI sections of the system Figure 4 2 Accessing the S...

Страница 97: ...shown in Figure 4 2 until it latches in the down position 5 Grasp the finger groove at the rear of the top cover and pull it straight back about 2 inches and then lift it off the cabinet 6 Pull a sid...

Страница 98: ...Replacement CAUTION Make sure all CPU modules are the same variant Figure 4 3 Removing CPU Module PK1477 98 WARNING CPU modules and memory modules have parts that operate at high temperatures Wait 2 m...

Страница 99: ...ule from the system Replacement Reverse the steps in the Removal procedure Verification DIGITAL UNIX and OpenVMS Systems 1 Bring the system up to the SRM console by pressing the Halt button if necessa...

Страница 100: ...l different memory DIMMs work in these systems Be sure you are replacing the broken DIMM with the same variant Figure 4 4 Removing Memory IP00315A WARNING CPU modules and memory DIMMs have parts that...

Страница 101: ...ze is the same as the one you removed Verification DIGITAL UNIX and OpenVMS Systems 1 Bring the system up to the SRM console by pressing the Halt button if necessary 2 Issue the show memory command to...

Страница 102: ...4 12 AlphaServer DS20 Service Manual 4 6 System Board Removal and Replacement Figure 4 5 Removing System Board Module Brace System Board PK1498 98...

Страница 103: ...the system frame Remove the brace 8 Unplug all cables connected to the system board and clear access to all screws holding the system board in place 9 Using a Phillips head screwdriver unscrew the fif...

Страница 104: ...t Figure 4 6 Removing PCI ISA Option Slot Cover Screws Option Card IP00225 WARNING To prevent fire use only modules with current limited outputs See National Electrical Code NFPA 70 or Safety of Infor...

Страница 105: ...eps in the Removal procedure Verification DIGITAL UNIX and OpenVMS Systems 1 Power up the system press the Halt button if necessary to bring up the SRM console and run the ECU to restore ISA configura...

Страница 106: ...4 16 AlphaServer DS20 Service Manual 4 8 Server Feature Module Removal and Replacement Figure 4 7 Removing Server Feature Module FAN 0 FAN 1 PK1403 98 Server Feature Module System Board...

Страница 107: ...ction of the system see Section 4 3 4 Unplug all cables connected to the server feature module 5 Pinch each plastic snap holding the transition module in place with a pair of needle nose pliers and pu...

Страница 108: ...8 AlphaServer DS20 Service Manual 4 9 Power Supply Removal and Replacement Figure 4 8 Removing Power Supply 4 rear screws 6 32 inch Internal screw 3 5 mm PK1499 98 Power Supply 0 Power Supply 1 Option...

Страница 109: ...ff 4 Unplug all the cables to the power supply and unplug the power cables to the transition module 5 Remove the four screws at the back of the system cabinet and the single screw at the back of the p...

Страница 110: ...4 20 AlphaServer DS20 Service Manual 4 10 Power Harness Removal and Replacement Figure 4 9 Removing Power Harness PK1404 99...

Страница 111: ...ve the cable loose and out of the way 7 Unplug the three cable connections to the system board two connections on top right corner of the board and one about 2 inches below the CPU1 slot on the right...

Страница 112: ...4 22 AlphaServer DS20 Service Manual 4 11 Power Transition Module Removal and Replacement Figure 4 10 Removing Power Transition Module PK1402 98...

Страница 113: ...harness up over the top of the system so that it does not interfere with access to the module 7 Pinch each plastic snap holding the transition module in place with a pair of needle nose pliers and pul...

Страница 114: ...4 24 AlphaServer DS20 Service Manual 4 12 Auxiliary Fan Removal and Replacement Figure 4 11 Removing Auxiliary Fan PK1481 98 Power Transition Module...

Страница 115: ...C power cord 3 Expose the power section of the system see Section 4 3 4 Unplug all cables connected to the power transition module 5 From the rear remove the four screws holding the auxiliary fan in p...

Страница 116: ...4 26 AlphaServer DS20 Service Manual 4 13 System Fan Removal and Replacement Figure 4 12 Removing System Fan FAN 0 FAN 1 Module Guides PK1400 98...

Страница 117: ...er feature module 6 Unscrew the fan from the frame and remove it from the system Removing Fan 1 4 Remove any PCI modules that prevent access to the four Phillips head screws that hold fan 1 in place 5...

Страница 118: ...4 28 AlphaServer DS20 Service Manual 4 14 Cover Interlock Removal and Replacement Figure 4 13 Removing Cover Interlock PKW0519A 97 Interlock Switch 1 2...

Страница 119: ...power and the signal connectors at the rear of the CD ROM 6 Pull the CD ROM and the bracket a short distance toward the rear of the system and lift them out of the cabinet 7 Unplug the interlock swit...

Страница 120: ...4 30 AlphaServer DS20 Service Manual 4 15 Operator Control Panel Removal and Replacement Figure 4 14 Removing OCP PKW 0501A 97 OCP...

Страница 121: ...ttom of the door is free gently pull the top down to release it from the post on the door jam and release it from the spring d Put the door aside 4 Using a Phillips head screwdriver remove the nine sc...

Страница 122: ...4 32 AlphaServer DS20 Service Manual 4 16 CD ROM Removal and Replacement Figure 4 15 Removing CD ROM PKW0519 97...

Страница 123: ...Detach both the power and signal connectors at the rear of the CD ROM 5 Pull the CD ROM forward out of the system Replacement Reverse the steps in the Removal procedure Verification Power up the syst...

Страница 124: ...4 34 AlphaServer DS20 Service Manual 4 17 Floppy Removal and Replacement Figure 4 16 Removing Floppy 1 PK1401 98...

Страница 125: ...move the two Phillips head screws holding the floppy in the system in Figure 4 16 6 Slide the floppy out the front of the system Replacement Reverse the steps in the Removal procedure Verification Pow...

Страница 126: ...4 36 AlphaServer DS20 Service Manual 4 18 SCSI Disk Removal and Replacement Figure 4 17 Removing StorageWorks Disk PKW0501B 97...

Страница 127: ...the front door exposing the StorageWorks disks 3 Pinch the clips on both sides of the disk and slide it out of the shelf Replacement Reverse the steps in the Removal procedure Verification Power up t...

Страница 128: ...Server DS20 Service Manual 4 19 StorageWorks Backplane Removal and Replacement Figure 4 18 Removing StorageWorks Backplane StorageWorks Backplane UltraSCSI bus extender optional UltraSCSI bus extender...

Страница 129: ...rks shelf 5 Remove the power harness and all signal cables from the StorageWorks backplane and the power transition module and lift it out of the way 6 Using a short Phillips head screwdriver remove t...

Страница 130: ...ervice Manual 4 20 StorageWorks UltraSCSI Bus Extender Removal and Replacement Figure 4 19 Removing StorageWorks UltraSCSI Bus Extender StorageWorks Backplane UltraSCSI bus extender optional UltraSCSI...

Страница 131: ...traSCSI bus extender on the side of the StorageWorks shelf 5 The UltraSCSI bus extender is mounted on plastic standoffs to which it snaps Pinch each snap with a pair of needle nose pliers free the cor...

Страница 132: ......

Страница 133: ...ables The test command is described in Chapter 2 of this document For complete reference information on other SRM commands and environment variables see your system User s Guide NOTE It is recommended...

Страница 134: ...t assertion flag the SRM console continues to run SROM 1 st 2 secs of pwr up Nothing XSROM power up Sets halt assertion flag auto boot ignored SRM console power up Sets halt assertion flag auto boot i...

Страница 135: ...ystem hangs Pressing the Halt button halts the operating system back to the SRM console firmware From the console you can use the crash command to force a crash dump at the operating system level The...

Страница 136: ...g the SRM Power Up Script You can force a halt assertion using the Halt button the RCM halt command or the RCM haltin command Observe the following guidelines for forcing a halt assertion Halt Asserti...

Страница 137: ...v boot_file and boot_osflags For Windows NT the SRM os_type environment variable and the Auto Start selection in the AlphaBIOS Standard CMOS Setup screen You might want to prevent the system from auto...

Страница 138: ...ess edit Invokes the console line editor on a RAM file or on the nvram file power up script examine Displays the contents of a memory location register or device halt Halts the specified processor Sam...

Страница 139: ...nvar Displays the state of the specified environment variable show config Displays the configuration at the last system initialization show cpu Displays the state of each processor in the system show...

Страница 140: ...ion Specifies the console s action at power up a failure or a reset bootdef_dev Specifies the default boot device string boot_osflags Specifies the default operating system boot flags com _baud Change...

Страница 141: ...bus node ID pk 0_soft_term Enables or disables SCSI terminators on systems that use the QLogic ISP1020 SCSI controller sys_model_num Displays the system model number and computes certain information...

Страница 142: ...Use the show command to list environment variable settings Table A 4 Environment Variables Worksheet Environment Variable System Name System Name System Name auto_action bootdef_dev boot_osflags com1...

Страница 143: ...and Environment Variables A 11 Table A 4 Environment Variables Worksheet Continued Environment Variable System Name System Name System Name pk 0_soft_term sys_model_num sys_serial_num sys_type tga_syn...

Страница 144: ......

Страница 145: ...e system from a remote location using the remote console manager RCM You can use the RCM from a console terminal at a remote location or from a local console terminal connected to the COM1 port Sectio...

Страница 146: ...the local serial console terminal Once in RCM command mode you can enter commands to control and monitor the system Only one RCM session can be active at a time To connect to the RCM remotely you dia...

Страница 147: ...3 B 2 First Time Setup To set up the RCM to monitor a system remotely connect the modem to the COM1 port at the back of the system configure the modem for autoanswer and 9600 baud and dial in Figure...

Страница 148: ...o the system console port 1 To invoke the RCM locally type the RCM escape sequence See in Example B 1 for the default sequence The escape sequence is not echoed on the terminal or sent to the system A...

Страница 149: ...ding it in haltout Terminates a halt assertion created with haltin Emulates releasing the Halt button after holding it in help or Displays the list of commands poweroff Turns off power Emulates pressi...

Страница 150: ...RCM halt Focus returned to COM port The halt command can be used to force a halt assertion See Section A 3 for information on halt assertion NOTE If you are running Windows NT the halt command has no...

Страница 151: ...e On Off button to the off position and disconnect the power cord 2 Reconnect the power cord and press the On Off button to the on position poweron The poweron command requests the RCM to power on the...

Страница 152: ...ole monitor to the system COM1 serial port The system executes its normal power up sequence setesc The setesc command resets the default escape sequence for invoking RCM The escape sequence can be any...

Страница 153: ...are Rev Revision of RCM firmware Escape Sequence Current escape sequence to invoke RCM Remote Access Modem remote access state ENABLE DISABLE Temp C Current system temperature in degrees Celsius RCM P...

Страница 154: ...disable certain RCM functions if desired Figure B 2 Location of RCM Switchpack on Server Feature Module PK1472 98 12 34 RCM Switchpack Switch Name Description 1 EN RCM Enables or disables the RCM The...

Страница 155: ...e powered down from the RCM Switch 4 SET DEF Set this switch to ON enable if you want to reset the RCM to the factory settings See the section Resetting the RCM to Factory Defaults Changing a Switch S...

Страница 156: ...ers See Section 3 2 4 Locate the RCM switchpack on the server feature module and set switch 4 to ON 5 Replace the system covers and plug in the power cords 6 Power up the system to the SRM console pro...

Страница 157: ...d RCM are powered up the COM port seems to hang briefly This delay is normal behavior Wait a few seconds for the COM port to start working RCM installation is complete but system does not power up RCM...

Страница 158: ......

Страница 159: ...on updating firmware Sections in this chapter are Updating Firmware and Consoles Updating Firmware from the CD ROM Updating Firmware from Floppy Disk Creating the Diskettes Updating Firmware from Flop...

Страница 160: ...ate AlphaBIOS in the AlphaBIOS Setup screen Example C 1 Starting LFU from the SRM Console P00 lfu Loadable Firmware Update Utility Select firmware load device cda0 dva0 ewa0 or Press return to bypass...

Страница 161: ...firmware 4 Use the LFU exit command to go back to the console Examples of updating firmware from CD ROM floppy and the network follow Example C 2 Booting LFU from the CD ROM P00 show device dka0 0 0 7...

Страница 162: ...00 5 0 1 1 Copying AS1400 TCREADME from DKA500 5 0 1 1 Copying AS1400 TCSRMROM from DKA500 5 0 1 1 Copying AS1400 TCARCROM from DKA500 5 0 1 1 Function Description Display Displays the system s config...

Страница 163: ...ole and I O adapter firmware AS1400CP SRM console and AlphaBIOS console firmware only AS1400IO I O adapter firmware only In this example the file for console firmware AlphaBIOS and SRM is selected The...

Страница 164: ...d UPD update WARNING updates may take several minutes to complete for each device Confirm update on AlphaBIOS Y N y DO NOT ABORT AlphaBIOS Updating to V6 40 1 Verifying V6 40 1 PASSED Confirm update o...

Страница 165: ...pported by the selected update file will be updated For each device you are asked to confirm that you want to update the firmware The default is no Once the update begins do not abort the operation Do...

Страница 166: ...400FW TXT AS1400IO TXT AS1400CP TXT TCREADME SYS TCREADME SYS CIPCA315 SYS TCSRMROM SYS DFPAA310 SYS TCARCROM SYS KZPAAA11 SYS To update system firmware from floppy disk you first must create the firm...

Страница 167: ...sys dva0 as1400 tcsrmrom sys copy tcarcrom sys dva0 as1400 tcarcrom sys dismount dva0 set noverify exit I O update diskette inquire ignore Insert blank HD floppy in DVA0 then continue set verify set p...

Страница 168: ...n to bypass loading and proceed to LFU dva0 Please enter the name of the options firmware files list or Press return to use the default filename AS1400IO AS1400CP AS1400IO Copying AS1400IO from DVA0 C...

Страница 169: ...the file is too large to fit on a 1 44 MB diskette This means that when a floppy disk is the load device you can update either console firmware or I O adapter firmware but not both in the same LFU se...

Страница 170: ...OT ABORT pfi0 Updating to 3 10 Verifying to 3 10 PASSED UPD lfu Loadable Firmware Update Utility Select firmware load device cda0 dva0 ewa0 or Press return to bypass loading and proceed to LFU dva0 Pl...

Страница 171: ...procedure as for the I O firmware The exit command returns you to the console from which you entered LFU either SRM or AlphaBIOS Example C 6 Selecting AS1400FW to Update Firmware from the Internal Fl...

Страница 172: ...lease enter the name of the options firmware files list or Press return to use the default filename AS1400FW Copying AS1400FW from EWA0 Copying TCREADME from EWA0 Copying TCSRMROM from EWA0 Copying TC...

Страница 173: ...lt file The file options are AS1400FW default SRM console AlphaBIOS console and I O adapter firmware AS1400CP SRM console and AlphaBIOS console firmware only AS1400IO I O adapter firmware only In this...

Страница 174: ...NG updates may take several minutes to complete for each device DO NOT ABORT AlphaBIOS Updating to V6 40 1 Verifying V6 40 1 PASSED DO NOT ABORT kzpsa0 Updating to A11 Verifying A11 PASSED DO NOT ABOR...

Страница 175: ...ates that all devices supported by the selected update file will be updated Typically LFU requests confirmation before updating each console s or device s firmware The all option eliminates the update...

Страница 176: ...of the system exit Terminates the LFU program help Displays the LFU command list lfu Restarts the LFU program list Displays the inventory of update firmware on the selected device readme Lists releas...

Страница 177: ...low Function Description Display Displays the system s configuration table Exit Done exit LFU reset List Lists the device revision firmware name and update revision Lfu Restarts LFU Readme Lists impor...

Страница 178: ...module into memory and comparing it with the source image To update more than one device you may use a wildcard but not a list For example update k updates all devices with names beginning with k and...

Страница 179: ...Console commands show memory 2 11 show power 2 11 test 2 9 Control panel 1 4 Halt assertion 1 5 Halt button 1 5 messages in display 2 5 Reset button 1 5 Controls Halt assertion 1 5 A 3 Halt button 1...

Страница 180: ...LFU C 18 C 19 help command RCM B 7 I I squared C bus 1 36 I_STAT register 3 2 Ibox Status Register 3 2 Interlock switches 4 28 Interrupts 1 35 ISA bus 1 9 K KN310 Ax CPU module 1 11 L LEDs CPU 1 11 2...

Страница 181: ...s 1 31 Power system components 4 3 Power transition module removal and replacement 4 22 Power up down sequence 1 33 poweroff command RCM B 7 poweron command RCM B 7 Power up display 2 6 Q quit command...

Страница 182: ...oard 1 9 1 16 cross bar switch 1 18 PCI I O subsystem section 1 20 remote control logic section 1 24 removal and replacement 4 12 System cables and jumpers 4 4 4 5 System components 1 3 System console...

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