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Troubleshooting
Possible Actions
4-2
The list should display two unknown devices, indicating the two
bridges contained in the PTC (see "Testing the Installation" on
page 2-10).
If the two required entries are not in the list, the PTC may not be
plugged in correctly. Power down the target platform, take out the PTC
and try to plug it in correctly.
Windows: Open the device manager and check for installed hardware.
The PTC should show up as PCI device in the list of available
hardware.
• Disable the SSC (Spread Spectrum Clocking) mode in the BIOS
settings.
AIC Mode tests: If the PTC does not link to the DUT
properly
(Digital display of PTC is not "1010")
Description
When powering up the target platform, the four-digit display on the test
card indicates the state of the internal link state machine.
The two digits on the left hand side indicate the linking state of the PTC
and the DUT. If the display settles at any other numbers than "1010", an
error has occurred.
See "Appendix" on page 5-1 for a list of all possible linking states.
Please try the following:
• Make sure the DUT applies to the PCI Express Specification 1.0a. PCI
Express Specification 1.0 devices are not supported by the PTC.
• If possible, check the functionality of the DUT:
Power down the target platform, remove the PTC, plug the DUT
directly in the target platform, and power up the system again.
If the DUT is working properly, proceed with the next step in this list.
• To exclude malfunctions of the FPGA on board the PTC, you can set up
the PTC so that it simply passes the electrical signal from the target
E2969-91020
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