Component Damage Can Occur When Removing/Replacing the Sun Fire T2000 Motherboard Resulting in Defective USB Ports.

Asset ID:	1-73-1000160.1
Update Date:	2010-09-02
Keywords:

Solution Type FAB (standard) Sure

Solution 1000160.1 : Component Damage Can Occur When Removing/Replacing the Sun Fire T2000 Motherboard Resulting in Defective USB Ports.

Related Items


Sun Fire T2000 Server

Related Categories


GCS>Sun Microsystems>Sun FAB>Standard>Controlled Proactive

PreviouslyPublishedAs
200209

Product
Sun Fire T2000 Server

Part

Part No: 541-0569
Part Description: ASY,4CORE-CPU/IO,W/HNDL,1.0GHZ

Part

Part No: 541-0570
Part Description: ASY,8CORE-CPU/IO,W/HNDL,1.0GHZ

Part

Part No: 541-0599
Part Description: ASY,6CORE-CPU/IO,W/HNDL,1.0GHZ

Part

Part No: 541-0587
Part Description: ASY,8CORE-CPU/IO,W/HNDL,1.2GHZ

Part

Part No: 541-1438
Part Description: FRU,ASY,6CORE-CPU/IO,W/HNDL,1.0GHZ

Part

Part No: 541-1453
Part Description: FRU,ASY,8CORE-CPU/IO,W/HNDL,1.2GHZ

Part

Part No: 541-1454
Part Description: FRU,ASY,8CORE-CPU/IO,W/HNDL,1.0GHZ

Part

Part No: 541-1455
Part Description: FRU,ASY,4CORE-CPU/IO,W/HNDL,1.0GHZ

Impact

Physical damage may occur to the USB components (Resistors R3920, R3921, R3816, and R3701) located on the underside of the motherboard at the rear corner near the USB ports if appropriate care is NOT taken or if the motherboard is incorrectly removed/replaced.

Symptoms

Root Cause

The small clearance between the chassis and motherboard, coupled with the location of the USB components underneath and near the edge of the motherboard makes the USB components vulnerable to being caught on the chassis and damaged when removing/replacing the Sun Fire T2000 motherboard. Resistors R3920, R3921, R3816, and R3701 (all part of the USB circuitry) are the components that are most likely to be damaged.

Workaround

Resolution

Extra care is required when removing or replacing the motherboard FRU in a Sun Fire T2000. When removing or refitting the motherboard, ensure that the components on the underside of the board do not snag on the chassis or other components as the board is removed from the chassis. Follow the instructions for removing and replacing the motherboard FRU assembly in the Sun Fire T2000 Service Manual, Part No. 819-2548-11, Chapter 4 "Replacing Cold Swappable FRUs" starting at Page 92.

Previously Published As
102447
Internal Comments
Related Information

Manual: Sun Fire T2000 Service Manual

Internal Contributor/submitter
david.swainson@sun.com

Internal Eng Business Unit Group
KE Authors

Internal Eng Responsible Engineer
alex.pappas@sun.com

Internal Services Knowledge Engineer
sean.hassall@sun.com

Internal Kasp FAB Legacy ID
102447

Internal Sun Alert & FAB Admin Info
Critical Category:
Significant Change Date:
Avoidance: Service Procedure
Responsible Manager: null
Original Admin Info: null

Product_uuid
41b7bc41-2581-11da-99bc-080020a9ed93|Sun Fire T2000 Server

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