Troubleshooting; Cpu Socket Inspection; First Level Inspection; Second Level Inspection - Kontron CG2300 Installation And Maintenance Manual

8

Troubleshooting

This chapter assists with identifying and solving problems that might occur while using the Kontron CG2300 Carrier Grade Server.
For any issue, first ensure you are using the latest firmware and files. Firmware upgrades include updates for BIOS and the
baseboard management controller (BMC). Go to
http://us.kontron.com/products/systems+and+platforms/communication+rackmount+servers/
+carrier+grade+servers/iCG2300+carrier+grade+server.html, click on downloads, BIOS for information about the latest
updates. In addition to the server firmware and files, also update any drivers used for components installed in the system, such
as video drivers, network drivers, and SAS drivers.
If these steps do not help resolve the server problems, see Appendix D: Getting Help" for assistance.
8.1

CPU Socket Inspection

The following socket pin inspection procedure, which is used by Kontron contract manufacturers, was developed by Kontron
manufacturing engineers, based on CPU socket designer guidelines. Kontron recommends that all users perform a socket
inspection before adding or replacing a CPU in the CG2300 server. These inspection steps may also be helpful for other
debugging purposes as well.
: There are two levels of inspection in this procedure and three different criteria for rejecting a socket. Before returning the
NOTE
CG2300 system to Kontron for RMA based on bent pins, be sure the socket you are examining meets the two-level rejection
criteria in these instructions.
8.1.1

First Level Inspection

Visually inspect the socket contact array as follows:
1. Hold the socket load plate open and get within 6 to 12 inches of the socket on the server board.
2. Using a magnification task light, scan the socket contacts while tilting the light away from the socket 15 to 45 degrees and
rotating your gaze 15 to 45 degrees from perpendicular to change your viewing angle three times.
Rejection Criteria
If the socket fails one of the following criteria, go on to the second level inspection before concluding there are bent pins.
» Any contact that does not reflect light back at all while the rest of the contacts around it do
» Any contact that reflects light earlier or later than the rest
»
Any foreign material in sufficient quantities to be detectable with un-aided vision
8.1.2

Second Level Inspection

If an alignment problem is found, confirm the defect under a microscope.
1. A contact is bent backwards upon itself or has shifted up or down from the normal position
Rejection Criteria
» Contact tips do not lie within +/- one contact thickness from the plane defined by call contact tips as shown in Figure
64.
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