[Info-vax] rx4640 power

[Carl Friedberg]

There most definitely is a limit for the RX2800i2 when running on 110 VAC
(which, in the USA is usually around 125-130 VAC). I know than a
single-processor RX2800i2 with 64 Gb does runs on (nominal) 110VAC. An
RX2800i2 with two processors, two power supplies and 256 GB memory exhibits
symptoms similar to what Snoweshoe described. FWIW.

On Tue, Nov 19, 2019 at 12:40 AM Steven Schweda via Info-vax <
info-vax at rbnsn.com> wrote:

> > The HPE quickspecs mention AC Input power 200-240V 50-60
> > Hz, with no mention of 120V operation. [...]
>
>    I know nothing, but that (much like "insufficient power")
> sounds to me like a clue.
>
> > Yet the 120V amount (696 W) should be sufficient for this
> > box with 1 CPU and little memory.
>
>    And if the total power output were the only limit on this
> power supply, then that reasoning might have more value.
>
>    Have you tried adding a second ("redundant") power supply
> (at 120V)?  (Not so "redundant" at 120V, perhaps.)
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