Query PCI bus speed

[Mike Linger_2]

I have a custom IO board in development. My bus analyzer is loaned out. Sometimes my PCI bus comes up at 33MHz. Sometimes the bus comes up at 66MHz.

Is there a simple HP-UX query to determine the bus speed?

[Denver Osborn]

With ola/r you can use "rad -q" to view ola/r capable slots. To show details on a particular slot use "olar -c 12" where 12 is the slot number to view details on. The output will list if the slot is "Capable_66Mhz".

Not all slots may be ola/r capable and the rad command will only show those slots that are.

I'm sure you could also find the specs from the system's h/w maint guide.

Hope this helps,
-denver

[Denver Osborn]

sorry mike, I need to clarify... the "rad -c" will only show info re: the io card that's already installed in the slot.

your best bet would probably be to look at the manual for your box online.
http://docs.hp.com/en/hw.html

I know the rp5400's we have have both 66MHz and 33MHz PCI slots... the turbo slots (slot 6-12) operate at upto 66MHz, while non-turbo slots are 33MHz.

Hope this helps,
-denver

[Mike Linger_2]

bash-2.04# olrad -n
Error : Capability not implemented; Could not obtain the number of OLA/R capable slots

I have an rx5670. It has 6 64-66MHz PCI slots and 3 64-133MHz PCI-X slots.

PCI is forward and reverse compatible. If my card is not able to operate at 66MHz, then the bus will negotiate to 33MHz.

I'm testing prototype IO boards. Sometimes they will work as expected (66MHz). Sometimes they will force to bus to 33MHz. I don't have a bus analyzer. How can I use HP-UX 11.23 to determine the bus speed.