Contents
User Password..................................................................................................................................... 4-9
General Server Problems........................................................................................................................... 4-9
“Operating System Not Found” Message Appears............................................................................. 4-9
Server Stops Working (Hangs) ......................................................................................................... 4-10
Power Problems....................................................................................................................................... 4-10
Video/Monitor Problems......................................................................................................................... 4-11
Configuration Problems .......................................................................................................................... 4-13
The Configuration Cannot Be Saved and the Battery Loses Power or the Configuration Information Is
Frequently Lost ................................................................................................................................. 4-13
Printer Problems ...................................................................................................................................... 4-14
The Keyboard Does Not Work................................................................................................................ 4-14
The Mouse Does Not Work..................................................................................................................... 4-15
Flexible Disk and Flexible Disk Drive Problems.................................................................................... 4-15
Flexible Disk Drive Problems........................................................................................................... 4-16
CD-ROM Problems................................................................................................................................. 4-16
The CD-ROM Drawer Will Not Open.............................................................................................. 4-16
The CD-ROM Drive Is Not Working Properly ................................................................................ 4-17
Server Will Not Boot from a CD-ROM Disk ................................................................................... 4-18
SCSI Problems ........................................................................................................................................ 4-18
The SCSI Boot Controller BIOS Has Trouble Loading the Boot Logical Drive (NOS Drive)........ 4-18
A SCSI Controller Does Not Work at Initial Installation ................................................................. 4-19
A SCSI Device Stops Working......................................................................................................... 4-20
A SCSI Device Does Not Work after Installation ............................................................................ 4-20
Processor Problems ................................................................................................................................. 4-21
Memory Problems ................................................................................................................................... 4-21
Network Interface Card (Embedded or PCI) Problems........................................................................... 4-23
LEDs Are Not Lit on the NIC........................................................................................................... 4-23
Chapter 5
Replacing Parts
Safety Information..................................................................................................................................... 5-1
Chassis Fan................................................................................................................................................ 5-2
Power Supply ............................................................................................................................................ 5-3
Battery ....................................................................................................................................................... 5-5
System Board ............................................................................................................................................ 5-6
Chapter 6
Parts Identification and Parts List
Exploded View and Parts List – Bezels and Drives .................................................................................. 6-2
Exploded View and Parts List– Internal Components...............................................................................6-3
Exploded View and Parts List – System Board Components ................................................................... 6-4
Parts List – Accessories............................................................................................................................. 6-5
Chapter 7
Specifications
Power Supply Requirements ..................................................................................................................... 7-1
Environment .............................................................................................................................................. 7-2
Weight and Dimensions ............................................................................................................................ 7-2
Hardware Specifications............................................................................................................................ 7-3
System Board Layout.......................................................................................................................... 7-4
HP ProLiant ML150 Server Operations and Maintenance Guide v
HP CONFIDENTIAL Codename: Stone Soup Part Number: 343329-001 Last Saved On: 8/14/03 9:52 AM
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