Page 28 - GIGABYTE Service Manual-v3.0-110101

04. Component Burn Out

Sometimes this failure is combined with the defect of power short; M/B should not be
powered on before this defect is fixed.
The list below is the parts or components which can be burned out:
A. MOSFET - cause by unstable PSU, over clock or some abnormal issues.

B. Golden finger - cause by improper installation.
C. trace 12V - cause by unstable PSU or some abnormal issues.
D. CPU socket - cause by improper installation, unstable PSU or over clock.
E. Power connector - cause by unstable PSU.

F. FB (ferrite beads) or chock - cause by unstable PSU, EOS or over clock.
G. Chipset - cause by unstable PSU, EOS or over clock.

Figure 1-9: Component Burn Out
1.3 Repair System

GIGABYTE use online system, GRMA, for RMA control, all RMA data must be
entered to this system. It is very important for the operation site to enter the correct data.
There are two important sections that would be recorded by repair center, one is the
Error Code and another one the Reason Code.
The Error Code is used to record the defect when customer sends RMA back, but not all

the time customer would provide this information. In this situation, please enter the
Error Code which detected by engineer or pre-tester.
The Reason Code is used to record the repair history, including the fault parts and

condition. With this information, we can figure out the cause is manufacturing related
or design related, and therefore we can further improve the quality and performance.
The advantages of GRMA system:
- assist quality improvement
- reduce 2nd RMA rate

- shorten the TAT time
- Information Announcement
- Component data search

- Repair report and analysis
For the repair system operation, please refer to GRMA system instruction for the detail.

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