I really couldn’t wait on this… this news is just too juicy to bottle up for the whole weekend.

While we’re not completely finished with our compatibility testing, early signs are pointing to 8GB of memory supported in not only the new October 2009 Mac mini models, but prior generation mini models as well.  We believe we found the “secret ingredient” that makes exceeding Apple’s recommended 4GB maximum in these machines possible.

Previous testing revealed prior generations of the Mac mini were able to boot with 8GB of memory, but sadly either did not utilize the extra memory installed or – even worse – made the entire machine slower when accessing more than 4GB of memory at a time.  In Late August, Apple released Mac mini EFI Firmware Update 1.2 and this allowed these generations to boot without kernel panic. However, we still found that most systems slowed to a crawl when exceeding 4GB of memory in the system.

So far, here’s what we recently found though: our OWC 8GB Upgrade Kit works in the latest Mac mini 2.26 and 2.53 machines and are consistently and completely utilized by the machines.  We then tested these same modules on the prior generation Mac mini (early 2009)… and found them to work consistently as well! All units tested were running Snow Leopard.

We do have more testing to do using the same memory modules with prior Mac mini generation models running OS X 10.5. We also need to do performance tests to make sure that the additional memory actually gives a solid performance boost when more than 4GB is installed. But at this point, we’re feeling pretty confident that our “secret ingredient”…namely the quality of OWC brand memory… delivers the reliability you desire.

Be sure to check back Monday as we’re hoping to complete our testing at that time and be able to confirm that we will support over 4GB of memory in the Mac mini, or if my excitement got the better of me.