Error code meaning in hardware test

I have had problems recently and finally discovered an error when running hardware test. Can anyone tell me what the error means - it is obviously a dimm memory problem but what else does it tell me?
error code = 2MEM/1/4:DIMM6/J43
THANKS
PAUL

You could try re-seating the RAM in J43 or removing the RAM (and the other stick of the pair), in the suspect slot J43 - the position of which is shown here.
Note that AHT is not always wizzo on RAM faults - there is some more advice here
http://thexlab.com/faqs/aht.html

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