Ultra[tm] 5 Workstation: Repair Procedures

This section provides the most common repair procedures for the Ultra 5 workstation. The written procedures below are links to the Sun Ultra 5 Service Manual (805-7763).

Component	Remove	Install	Tips
CD-ROM Drive	X	X	Booting from CD-ROM on Ultra 5/10 systems might not succeed unless the system OBP is updated (FIN I0770-1).
CPU Fan Assembly	X	X
CPU Module	X	X	The system board must have the minimum OBP version (3.19v4) installed for the Ultra 5/10 333MHZ Sapphire Red CPU module; otherwise, the system will be non-operational (FIN I0528-1). Unable to boot after replacing CPU in Ultra 5/10 (SRDB 21117).
Disk Drive (Primary)	X	X	Ultra 5/10 workstations may encounter uncorrectable data errors on IDE disks during boot after using shutdown -y -i5 -g0 command (FIN I0779-1). After adding or replacing a disk drive, the following error occurs when attempting to use the format utility: "corrupt label - wrong magic number" (FIN I0385-1). 18GB and 36GB IBM disk drives experiencing high failure rate in high humidity and high temperature environments (FCO A0182-1).
Disk Drive (Secondary)	n/a	X	If you plan to mirror the primary and secondary disks, refer to the Hard Drive Mirroring section. Ultra 5/10 workstations may encounter uncorrectable data errors on IDE disks during boot after using shutdown -y -i5 -g0 command (FIN I0779-1). After adding or replacing a disk drive, the following error occurs when attempting to use the format utility: "corrupt label - wrong magic number" (FIN I0385-1). 18GB and 36GB IBM disk drives experiencing high failure rate in high humidity and high temperature environments (FCO A0182-1).
Floppy Drive	X	X
Front Bezel	X	X
Power Supply	X	X
Speaker Assembly	X	X
Memory (DIMM)	X	X	Ultra 5 and Ultra 10 systems might not boot if Micron memory and OBP 3.25.2 (or earlier) are installed (FIN I0598-1).
NVRAM/TOD	X	X	New NVRAM (525-1817) is incompatible with the Ultra 5/10 system board (375-0079), so a new system board (375-0115) was created for the new NVRAM (I0596-1).
PCI Card	X	X	SunPCi II and SunPCi IIpro cards may not respond after rapid/successive power cycling (FCO A0186-1). PCI cards in Ultra 10 not accessible due to mechanical alignment and seating problems with the PCI Riser card (FCO A0152-1). Ultra 5/10 systems may encounter errors when booting from SCSI devices attached to Dual Ultra SCSI PCI cards (FIN I0386-1).
PCI Riser Board	X	X
System Board	X	X