From: coyote@cojot.name
Date: Fri Apr 01 2005 - 17:48:06 EST
Hi everyone,
(Posting this on behalf of a friend).
After performing autopsy on a dead 280R not under SUN support contract, we
came up with something that puzzled us:
Even though the machine had dual 900Mhz US-IIICu modules (2*X7009A), when
we removed the heatsinks from the cpu modules, it appeared that the
machine had in fact one 1015 Mhz US-IIICu chip and one 1050 US-IIICu chip
(as written on the silver aluminium from the chips' top). If the cpu speed
isn't set by the chip, it must be set by the cpu module, right?
There is only one jumper on the cpu modules: jumper J0902 which has the
following labels: '*', '2', '5', '6'. These number really look like clock
multipliers but I was unable to figure out what were the valid
combinations. Perhaps, if we could reduce the cpu speed to 750Mhz things
would get better.
Anybody with pictures of 280R US-IIICu cpu modules (not the 900Mhz ones)
where the J0902 jumper is viewable?
-- ,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-, Vincent S. Cojot, Computer Engineering. STEP project. _.,-*~'`^`'~*-,._.,-*~ Ecole Polytechnique de Montreal, Comite Micro-Informatique. _.,-*~'`^`'~*-,. Linux Xview/OpenLook resources page _.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~' http://step.polymtl.ca/~coyote _.,-*~'`^`'~*-,._ coyote@NOSPAM4cojot.name They cannot scare me with their empty spaces Between stars - on stars where no human race is I have it in me so much nearer home To scare myself with my own desert places. - Robert Frost _______________________________________________ sunmanagers mailing list sunmanagers@sunmanagers.org http://www.sunmanagers.org/mailman/listinfo/sunmanagers
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