PCI problems on DS20

From: Marko Havu (Marko.Havu@havutuote.fi)
Date: Thu Feb 06 2003 - 19:13:00 EST

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I'm having a peculiar problem on an AlphaServer DS20. Without any PCI cards installed, the system starts up to SRM console. If there are any PCI cards installed, however, it is likely that the unit will hang at power-up with "Probe I/O subsys" on the diagnostics display. Console output varies inconsistently. Sometimes all I get is:

os_type: UNIX - console CIPCA driver not started
Testing the System
Testing the Memory

Sometimes the machine hangs after:

probing hose 1, PCI
probing PCI-to-PCI bridge, bus 2

And sometimes I can install a PowerStorm 4D20 and get the machine all the way to the SRM console prompt. None of the other cards work, though, and "test -lb" tells me "No VGA/TGA available for testing". Disabling PCI parity had no effect. Is the motherboard defective or what? Does anyone know how much a replacement motherboard to DS20 costs?

Thanks,
Marko Havu

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