I think one of the rams died.
turned out I had enough ram to replace those old rams with new ones.
Server now has 512Mb ram,, which is not bad for an old p3 500mhz.
So anyhow, while I was at it, I took the chance to install one of those cold cathode lights.
Its a blue one, So I guess my greenhouse is now a bluehouse.
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although that picture does look a bit greenish.