Hi,

I've just obtained a SPARCstation 20 from EBay, and I'm having trouble with
the memory. The POST fails with the following error message:

Power-On SelfTest FAILED .... SIMM <J0201> Not Installed

The machine came with a single SIMM, and nothing else in any of the sockets.
Does anybody have any idea how to fix this? I can't see anything useful in
the SPARCstation 20 service manual on docs.sun.com

Many thanks for any help

On Saturday 14 February 2004 1:01 pm in comp.sys.sun.hardware Chris Howells
wrote:


> I've just obtained a SPARCstation 20 from EBay, and I'm having trouble
> with the memory. The POST fails with the following error message:
>
> Power-On SelfTest FAILED .... SIMM <J0201> Not Installed
>
> The machine came with a single SIMM, and nothing else in any of the
> sockets. Does anybody have any idea how to fix this? I can't see anything
> useful in the SPARCstation 20 service manual on docs.sun.com

The first SIMM must be installed in J201 which is the socket farthest
from the back panel. Also check that it is properly seated.



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Chris Newport wrote:

> The first SIMM must be installed in J201 which is the socket farthest
> from the back panel. Also check that it is properly seated.
>

Ah excellent thank you! I had heard conflicting reports about which was the
first DIMM slot, and had tried to put it into the socket closest to the
front of machine, but then it complained no DIMM was installed... however
it turns out that it wasn't quite seated properly when I tried to do that
to start with but I've checked and now it's fine!

Now to try netbooting the OpenBSD installer

Many thanks.

Cheers,
Chris Howells