Is 8gb of RAM in one memory slot possible for a mid-2009 2.53GHz MacBookPro5,4?

I have a mid-2009 2.53GHz MacBookPro5,4 and recently bank 1 stopped recognizing any ram installed in the slot (similar to this issue https://discussions.apple.com/thread/4263981).
I originally thought it was a bad module and tried different 2x4GB paired ram kits but same issue. Only one bank seems to work now. I really need at least 8gb or ram for work and I'm not quite ready to shell out for a new laptop. So I'm wondering if I can salvage this machine by putting a single 8gb module on the one bank that still works.
Has anyone tried this?

An interesting question.  I found this which you may find of interest:
http://forums.macrumors.com/showthread.php?t=1045517
It seems to suggest that it may, but I see it a bit of a crap shoot.
Ciao.

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