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#1 (**permalink**) 01-16-2008, 02:28 PM

Does anyone know why the 501-5237 is listed as not compatible with the
Ultra 2? I installed two of these on my Ultra 2 and it works without
any incident (so far).

Thanks,

Ram

#2 (**permalink**) 01-16-2008, 02:28 PM

rmeenaks@olf.com wrote:
> Does anyone know why the 501-5237 is listed as not compatible with the
> Ultra 2? I installed two of these on my Ultra 2 and it works without
> any incident (so far).
>
> Thanks,
>
> Ram
>
Just a wild guess, but perhaps in a worst-case scenario (e.g. fully
loaded, with mains voltage low) the power supply can't be guaranteed
to be sufficient.

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#3 (**permalink**) 01-16-2008, 02:28 PM

I dont know. I have fully maxed out on the memory (e.g. 2GB), all the
SBUS cards are filled as well as the UPA (FFB+ Series 3) and I also
have a 73GB disk drive along side a 9GB disk drive on the machine. It
also contains the 3.5 inch floppy and CD drive. So, it is maxed out
and I havent had any problems with it yet. Its not on all the time
(maybe 2 hours at most, Its my home machine)...

Thanks,

Ram

#4 (**permalink**) 01-16-2008, 02:28 PM

rmeenaks@olf.com wrote:
> Does anyone know why the 501-5237 is listed as not compatible with the
> Ultra 2? I installed two of these on my Ultra 2 and it works without

Maybe there was an incompatability with the original OBP/POST revisions?
If these have been updated the MoBo may be fine. This situation occurs
with the SB1K and SB2K (the latter only has minor cosmetic differences,
and different versions of OBP/POST). Flashing an SB1K with the latest
revisions allegedly enables the use of non supported SB2K CPUs.

#5 (**permalink**) 01-16-2008, 02:28 PM

The system handbook says that it is "not qualified for the Ultra 2",
which probably just means that it has not been tested in the U2.

It is only listed for the 250.

Thomas

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UltraSparc II 400MHZ 501-5237 Modules and the Ultra 2