[SunRescue] SS2 RAM parity error weirdness
Gregory Leblanc
GLeblanc at cu-portland.edu
Thu Jun 29 23:07:42 CDT 2000
So I'm generating a lot of questions lately, sue me. :-) Anyway, I've got
this SS2 here, and I had a bunch of 1MB simms lying around that I wanted to
use. So, I grabbed 4 sets of 4, for a total of 16MB. I stuck them in the
SS2 in order from "back" to front (not the order in the SHR), one bank at a
time. After inserting a bank, I'd connect the machine to my monitor and
type5 keyboard, boot, and do a ram test. Every test came back happy. When
finished, I had 16MB of ram in this machine (it's going to be a router,
doesn't need much). Just a moment ago, I connected up my keyboard/monitor
to my SS20, and got the output from the serial console on the SS2. It says
"
FAILURE: Incorrect Parity Error, MER (1fb40000) Exp = 000000dfCan't open
input device."
I believe it, since I don't think that I had 16 true parity simms, some of
them were probably logic chip parity.
My questions are, 1) how can I tell which ram it's talking about? and 2) why
didn't it gripe on the memory test when booting from the real console?
Thanks,
Greg
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(sigline nicked from Jayan M on comp.os.linux.misc)
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