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Conference TV terminal IPC heat dissipation issue causing system halt after running for a while

Publication Date:  2012-09-22 Views:  24 Downloads:  0
Issue Description
Certain meeting place TV terminal operates unstable, system halts after running for about 1 hour. After reset, system halt very often, till system can’t start.
Alarm Information
None
Handling Process
1.konwing that the main board was just replaced recently, so eliminate the main board problem, scan hard disk, don’t find any problem
2. Exam IPC’s output voltage and current after malfunction that emerged after running for a while. There is no problem, eliminate the possibility of power source malfunction.
3. Restart several times on the base of step 2. System can’t reach to DOS OS when problem become severe. So eliminate the possibility of OS malfunction
4. During the exam, there were problem of memory error causing system can’t start. We doubt the problem may be on the RAM. Replace RAM, problem remains. So eliminate the possibility of RAM malfunction.
5. Notice that the CPU fin is very hot when system halt, so open the machine case and improve the heat dissipation, system runs for 3 hours without halt. Problem locates on main board bad heat dissipation. We need to improve heat dissipation.
6 Exchange position of main board and graphics card, remove baffle on the left and right side of case back. System runs well without system halt. Problem solved.
Root Cause
1. Certain part of host is brocken
2. IPC power source output voltage is not stable
3. Main board runs unstable(RAM unstable, CPU unstable)
4. Hard disk runs unstable(over heart, and have bad track)
5. Hardware or line plug unstable
6. OS is brocken.
Suggestions
None

END