Voor zover ik weet start OSX 10.6.x nog steeds niet standaard in 64-bit. Toen ik de test met Rember uitvoerde moest ik geforceerd in 64-bit opstarten (toetsen 6 en 4 ingedrukt houden) zodat het voor Rember mogelijk werd het te testen geheugen te locken. In de native opstart methode van OSX (32-bit?) was dit niet mogelijk.
In de FAQ van Rember staat het volgende:
=====================================
Question: When I run "Rember", It gives me an error message:
"Attempting memory lock... WARNING: Testing with unlocked memory may be slower and less reliable
ERROR: Memory lock failed - reason unknown."
What does this mean, and what should I do?
Answer: The error message is stating that the machine cannot "lock" the memory (which allows for faster and more precise testing). By default, Mac OS X v.10.6 will boot with a 32-bit kernel (with some exceptions). Because the kernel uses a 32-bit architecture, the software cannot lock more than 4 GB of RAM for testing.
To avoid this warning, you can boot the computer with a 64-bit kernel (if you're running 10.6 on a 64-bit capable architecture) by holding down the "6" and "4" keys on the keyboard while starting up.