I could not help with France technician.
But if you not have the skills to make some "ironwork", skip this little help:
Find all electrolythics caps in the MB. Write their values, buy new ones and replace ALL of them (is a cheap thing to do).
That SIMM problem is very strange. Try put another SIMMs on the mobo. Or not fill the 1st bank. Also verify mobo straps.
If nothing helps: pray! :-(
