This section provides tips (when available) for the most common
repair procedures for the Sun Fire 12K / 15K. The repair procedures are located
in the Sun Fire 15K System Service Manual
(806-3512).
Component |
Tips |
CPU Board (Slot 0) |
- Reworked UltraSPARC IV 1.2GHz system boards may be downclocked
to 1050MHz due to a misprogrammed SEEPROM.
(FIN I1178-1).
- The Vcore setting for UltraSPARC IV 1350MHz boards should be
1.25V, but some earlier releases of firmware will power on
and operate the board at an incorrect voltage.
(FIN I1166-1).
- A special procedure must be followed when replacing this FRU (details).
- When boards are inserted into Slot 0 or Slot 1 of a Sun Fire 12K/15K
chassis, the board LEDs may fail to illuminate (FIN I0980-1).
- Replacement of 900MHz System Boards by 1200MHz boards in Sun Fire
12K/15K platforms may fail if the proper installation procedure is not
followed (FIN I0958-1).
- CPU/Memory Board FRUs for Sun Fire 12K/15K and Sun Fire 3800-6800
systems are not enabled for Capacity On Demand (COD) use (FIN I0912-1).
- Guidelines for understanding and diagnosing UltraSPARC III Level 2
(L2) SRAM Cache Memory Errors (FIN I0887-1).
- UltraSPARC III and III+ based platforms could be susceptible to UCC
errors that may cause system panics (FIN I0856-1).
- Sun Fire CPU/Memory Boards may become unusable when components are
knocked off by improper handling (FIN I0855-1).
- LEDs may not light upon cold start (FIN I0826-1).
- Issue with diagnosing of "send mondo" panics (FIN I0765-1)
- 900MHz CPUs operating at 750MHz (FIN I0759-1
|
CPU Board DIMM (Slot 0) |
- A special procedure must be followed when replacing this FRU (details).
- Best Practices Guide for Memory Errors for diagnosing UltraSPARC III
memory errors now available (FIN I1018-1).
- Diagnosing Main Memory errors versus L2SRAM errors on UltraSPARC III
and UltraSPARC III Cu systems (FIN I0954-1).
- Systems containing 256MB Samsung B-die DIMMs, having a module date
code between 0115 and 0127 (built between weeks 15 and 27 of 2001),
may experience Uncorrectable Memory Errors (UE). This can lead to System
Panics (FCO A0223-1).
|
Centerplane Support Board |
- A special procedure must be followed when replacing this FRU (details).
- The "thermcal" utility must be executed following replacement of this
part (FIN
I1071-1).
- A limited number of Sun Fire 15K/20K/25K Expander and CSBs are experiencing higher than expected rates of
loss of redundant DC power supplies.
(FCO A0267-1).
|
Disk Drive |
- On the System Control Peripheral board, the upper disk (target Id
3) connects to J2 SCSI backplane connector, and the lower disk (target
Id 2) connects to J3 SCSI backplane connector.
|
Fan Tray |
- A special procedure must be followed when replacing this FRU (details).
|
Hot-Swap PCI (hsPCI) Assembly (Slot 1) |
- A special procedure must be followed when replacing this FRU (details).
- When boards are inserted into Slot 0 or Slot 1 of a Sun Fire 12K/15K
chassis, the board LEDs may fail to illuminate (FIN I0980-1).
- Some pcisch driver panics on F15K systems are unrelated to failed
hardware (FIN I0852-1).
- LEDs may not light upon cold start (FIN I0826-1).
- Sun Fire 15K domains may panic due to problem with Schizo 2.2 ASICs
on hsPCI I/O Boards (FIN I0820-1).
- Crystal-2A card (or other PCI adapter cards) in Slot 1 of
hsPCI I/O board (5.0v cassette) may not be recognized upon boot
or may unexpectedly fail to initialize. (FCO A0246-1).
- The 3.3V hsPCI Cassette inaccurately determines the speed of the PCI
adapter and sets it to 33 MHz (FCO A0218-3).
- hsPCI boards having Schizo 2.2 ASICs can suffer a panic due to a timing
race condition (FCO A0193-1).
|
MaxCPU Board (Slot 1) |
- When boards are inserted into Slot 0 or Slot 1 of a Sun Fire 12K/15K
chassis, the board LEDs may fail to illuminate (FIN I0980-1).
- Issue with diagnosing of "send mondo" panics (FIN I0765-1).
- A limited set of Sun Fire System Boards may be vulnerable to Uncorrectable
Errors in L2 SRAM. (FCO A0248-1).
|
Memory |
- On certain Sun Systems a small number of 512MB and 1GB Micron DIMMs may experience premature failures with Uncorrectable Memory Error (UE) messages. (FAB 1000920.1) (formerly FCO A0285-1)
- A sub-population of DIMMs that shipped between 2001 and 2002
on the below platforms are showing significantly lower
reliability than expected (FCO A0253-1).
|
PCI Cassette(Slot 1) |
- A special procedure must be followed when replacing this FRU (details).
- Some pcisch driver panics on F15K systems are unrelated to failed
hardware (FIN I0852-1).
- EMI cap screws in Sun Fire 12K/15K PCI Cassettes may tighten
over time, making it difficult to remove PCI I/O cards.
(FCO A0249-1).
- The 3.3V hsPCI Cassette inaccurately determines the speed of the PCI
adapter and sets it to 33 MHz (FCO A0218-3).
|
PCI Cassette Card |
- A special procedure must be followed when replacing this FRU (details).
- PCI adapters in F12K/15K domains may intermittently fail following
a reset, reboot or "setkeyswitch on" operation. (FIN I0877-1).
- UltraSPARC III systems may panic due to a conflict between the Schizo
2.4 ASIC and the GigaSwift Ethernet PCI Card (FIN I0874-1).
- Some pcisch driver panics on F15K systems are unrelated to failed
hardware (FIN I0852-1).
- Cauldron cards (501-5727-04 and below) with the "BC" bridge chip may
cause a system panic during boot on Sun Fire 12K/15K systems. The symptom
will appear as a PCI SERR which causes the OS to panic (FCO A0219-1).
- The 3.3V hsPCI Cassette inaccurately determines the speed of the PCI
adapter and sets it to 33 MHz (FCO A0218-3).
|
Power Centerplane |
- A special procedure must be followed when replacing this FRU (details).
- When a Power Centerplane Board is replaced in the field there is the
potential for the 48VDC cable to be routed so that it shorts against
a ground lug (FIN I1061-1).
|
Power Module |
- A special procedure must be followed when replacing this FRU (details).
|
Power Supply |
- A special procedure must be followed when replacing this FRU (details).
|
System Control (SC) Board |
- Running the `prtdiag` command on the System Controller of Sun Fire
12K/15K/E20K/E25K can cause a segmentation fault. (FIN I1135-1).
- System Controllers (SCs) built prior to September 2002 may not be
able to save a crash dump due to a misconfiguration issue (FIN I0878-1).
- All Sun Fire 15K systems running SMS 1.1 or SMS 1.2 do not have the
osdTimeDeltas file in the file propagation list. If a failover occurs,
this could result in a rollback of a domain's Time Of Day. Such a shift
in time has unforseen effects on applications (FIN I0785-1).
- Sun Fire 15K System Controller should be configured with at least
2 Gbytes swap space (FIN I0748-1).
|
System Control (SC) CPU Board |
- A special procedure must be followed when replacing this FRU (details).
- Mac address of SC can change when installing new CP1500 board, which
will cause the system not to boot (FIN I0771-1)
- When inserting a CP1500 CPU board firmware must be updated (FIN I0761-1)
- SMS may shut off the system controller board, causing a failover to
the redundant system controller board, which causes a loss of redundancy
(FCO A0217-1).
|
System Control (SC) Peripheral Board |
- A special procedure must be followed when replacing this FRU (details).
|
System Expander Board |
- A special procedure must be followed when replacing this FRU (details).
- Slot 1 Dynamic Reconfiguration (DR) on F12K/F15K platforms is not
supported and must not be performed on domains containing AXQ 6.0 or
Schizo 2.2 ASICs (FIN I0933-1).
- Due to a bug in the AXQ ASIC which resides on the System Expander
Board of the F15K, a Solaris panic can occur if too many outstanding
noncacheable Programmed I/O transactions are awaiting service (FIN I0763-1).
- Sun Fire 15K domains containing Expanders with hardware dash revision
16 or less may dstop due to bug 4505200 (FIN I0822-1).
- LEDs may not light upon cold start (FIN I0826-1).
- System Expander Boards having AXQ 6.0 ASICs may experience a deadlock
condition (FCO A0192-1).
|
Top Cap Frame Manager Assembly |
- A special procedure must be followed when replacing this FRU (details).
|