28 Mar
2006
28 Mar
'06
10:14 a.m.
A standard BA11-K box has 2xH744 (or later 2xH7441),
1xH745,
1x54-11086, and usually a spot for 1xH754 (for core memory,
not req'd if no core).
Oh CRAP. I built this machine from parts (albeit all marked 11/34), and did
NOT know that I needed an H754 for core. Would this couse the deposit
errors I'm experiencing?
28 Mar
28 Mar
10:45 a.m.
Julian Wolfe wrote:
Probably; your core memory is unpowered (H754 supplies +20V & -5V to
core memory modules).
AFAIK the ONLY use for the +20V/-5V H754 brick is for core memory.
The MOS memory boards for the 11/34 box (MS11-L) use the +15V/-15V from
the backplane and have onboard regulators to generate +12V/-5V for the
DRAM devices.
A standard
BA11-K box has 2xH744 (or later 2xH7441), 1xH745,
1x54-11086, and usually a spot for 1xH754 (for core memory,
not req'd if no core).
Oh CRAP. I built this machine from parts (albeit all marked 11/34), and did
NOT know that I needed an H754 for core. Would this couse the deposit
errors I'm experiencing?
6886
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6886
days old
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