Powerbook repair question

The lower memory slot on my 15'' PB just failed, so I am going to bring it in to the nearest Apple store. My question is should I remove the 3rd party RAM (which is from Crucial) in the upper slot and leave only the original Apple module in the lower slot. I heard that Apple repair people do not like 3rd party RAM. Can they really refuse repair when they see a 3rd party module, or I should be OK leaving the 3rd party module in?
Thanks.

CanadaRAM said:

They can't 'refuse' repair, but they can blame the third-party part and 'forget' to fix anything else.
Put the Apple RAM in and avoid hassles.

Click to expand...

Thanks. I guess I'd just have to remove the 3rd party module...

The Genius could not reproduce the defect on site (of course, the PB booted up normally when it was being watched - duh ), but he still took my words and OKed a logic board replacement. Happy with the service so far - but now will have to get used to living without the PB for several days, which is hard...