Document fins/I0607-1
FIN #: I0607-1
SYNOPSIS: Isolating problems on the Ultra 80 and E420R, Netra T 1400 and Netra
T 1405 based systems
DATE: Sep/12/02
KEYWORDS: Isolating problems on the Ultra 80 and E420R, Netra T 1400 and Netra
T 1405 based systems
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- Sun Proprietary/Confidential: Internal Use Only -
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FIELD INFORMATION NOTICE
(For Authorized Distribution by SunService)
SYNOPSIS: Isolating problems on the Ultra 80 and E420R, Netra T 1400
and Netra T 1405 based systems.
TOP FIN/FCO REPORT: No
PRODUCT_REFERENCE: Netra T Server & Ultra Desktop
PRODUCT CATEGORY: Desktop / Service ; Server /Service
PRODUCTS AFFECTED:
Mkt_ID Platform Model Description Serial Number
------ -------- ----- ----------- -------------
Systems Affected
----------------
- A27 ALL Ultra 80 -
- A33 ALL Enterprise 420R Server -
- Netra t ALL Netra t 1405 Server -
- Netra t ALL Netra t 1400 Server -
X-Options Affected
------------------
- - - - -
PART NUMBERS AFFECTED:
Part Number Description Model
----------- ----------- -----
F501-5218-10 Memory Riser card -
F340-6091-02 Torque Indicator Tool -
F501-5168-16 ASSY,QUASAR,MB,0 MEG,TSTD -
REFERENCES:
BugId: 4224937
MANUAL: 806-1080-10 Enterprise 420R Server Product Notes
MANUAL: 806-1457-02 Ultra 80 Product Note
MANUAL: 805-6618-10 Ultra 80 Service Manual
MANUAL: 805-6804-10 Netra t Service Manual
FINs: I0537-1, I0537-2
PROBLEM DESCRIPTION:
System initialization failures are sometimes being diagnosed
incorrectly on Ultra 80, E420R, Netra T 1400 and Netra T 1405 based
systems. As a result, wrong FRU's are being replaced and good parts
are being returned to repair depots.
In some cases, where the initialization failure is caused by an
improperly installed Memory Riser Card, the parts replaced have been
the DIMM or the CPU board.
The following information is provided to help in determining the
cause of system initialization failures for these systems. The
Corrective Action section gives the proper procedure for installing
the Memory Riser Card.
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| Fault | Screen Output | Keyboard Output |
|================================================================|
| Riser Failing | Blank, the GFX | LED's Flashed |
| once | adaptor was never | |
| | turned on. | |
|---------------|------------------------------------------------|
| DIMM Removed | Only showed 3072MB | LED's Flashed three |
| | memory was found | times. |
| | instead of the 4096 | |
| | MB that was originally | |
| | in the system. One | |
| | bank shows up missing. | |
|----------------------------------------------------------------|
| CPU Removed | Blank | No LED's Flashed. |
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Normal System Boot Sequence
---------------------------
- Push button depressed to turn system on.
- While button is depressed Keyboard LED's are on
- When button is let go, the LED's go off and a beep
is generated.
- The LED's then Flash once
- Some time goes by.
- The LED's Flash again.
- The Graphics head turns on
- The LED's Flash one more time.
Riser Card not properly installed
--------------------------------------------
When the Riser Card is not properly installed, the system will only
boot up to the point shortly after the first LED Flashing occurred.
The system never makes it to the second or third Flashing. The
system self-test may also fail or there may be no output to the
system console.
Also refer to "DIMMs not seated properly when only one bank of
memory is installed".
CPU Removed or Not seated properly
----------------------------------
If the CPU is removed, or is not seated properly, the system will
not reach the point where the LED's flash for the first time.
DIMMs not seated properly when multiple banks of memory are installed
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The system will report less memory detected on the banner line than
what is installed in the system.
DIMMs not seated properly when only one bank of memory is installed
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System responds with the same symptoms as if the "Riser Card was
not installed properly".
Possible CPU problems
---------------------
CPU panics occurring just after the first flashing of LEDs may indicate
that no memory was found. Please refer to "DIMMs not seated properly
when only one bank of memory is installed" and "Riser Card was
removed
or not installed properly".
CPU panics can also indicate a problem with the CPU module. If this
is the case, then the CPU module should be replaced.
IMPLEMENTATION:
---
| | MANDATORY (Fully Pro-Active)
---
---
| | CONTROLLED PRO-ACTIVE (per Sun Geo Plan)
---
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| X | REACTIVE (As Required)
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CORRECTIVE ACTION:
The following guidelines are provided to help authorized Enterprise
Services Field Representatives with the correct diagnosis and
installation of the above mentioned Memory Riser assembly.
*Based on the above information, diagnose whether the problem lies
within the Riser Card or elsewhere.
If the problem is suspected in the Riser Card, follow the instruction
below.
1. Prepare to replace the Memory Riser Card on the E420R/Ultra80/Netra
t 1400/1405 main logic board by making sure you have the supplied
torque indicator driver tool (F340-6091-02). Do not attempt to
replace the Riser Card on the motherboard without using this tool.
The Micrometer Hand-Torque screwdriver (F250-1239-01) with the main
scale set to 5.0 lbs. and an "R2 Square Bit" may also be used.
2. Carefully align the connectors of the assembly with the motherboard
connectors (J1501, J1601). The Memory Riser Card is not only
sensitive to torque values, but also to alignment.
3. Carefully seat the Riser Card onto the mating connectors on the
motherboard. Secure the connection by simultaneously turning both
thumbscrews clockwise one wrist turn (180 degrees). The two screws
should be finger-tightened simultaneously before using the torque
indicator driver or the Micrometer Hand-Torque screwdriver.
4. When the screws are finger-tightened, use the tool to alternately
turn one thumbscrew and then the other by one wrist turn (180
degrees), or until the gap on the torque indicator driver closes.
When the gap is closed, stop turning. Over-torquing the screws can
cause damage to the board. Then tighten the remaining screw using
the tool until the gap closes. (The correct amount of torque is
5.0. You must use a torque driver with the correct bit and
setting.)
5. After the Riser Card is torqued as in step 4, press firmly down
with the palm of your hands on the top-center of the Riser Card.
Make sure that you press straight down on the card to seat the
board with the correct alignment.
6. After pressing downward on the assembly in the previous step,
re-torque the thumbscrews again, alternating one turn each, until
the gap on the tool closes once again. When both screws have been
torqued so the that gap on the indicator tool is closed, you have
completed the replacement procedure.
NOTE: Check connector pins for damage by "eyeballing" down the rows of
pins on both the main logic board as well as the Memory Riser
Card. Equipment damage can results from insertion of mis-aligned
connector pins.
COMMENTS:
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Implementation Footnote:
i) In case of MANDATORY FINs, Enterprise Services will attempt to
contact all affected customers to recommend implementation of
the FIN.
ii) For CONTROLLED PROACTIVE FINs, Enterprise Services mission critical
support teams will recommend implementation of the FIN (to their
respective accounts), at the convenience of the customer.
iii) For REACTIVE FINs, Enterprise Services will implement the FIN as the
need arises.
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