Quote Originally Posted by josh1980 View Post
Sorry, it does sound confusing. The normal operation for non-ECC memory is to enable the quasi-ECC feature. This feature uses 1/9th of the total size of the memory, so whatever size you have installed you will lose 1/9th. If you put a jumper over the "RESERVED" jumper, which is the second jumper from the right when looking at it, this disables the quasi-ECC feature giving you the total capacity of the RAM sticks. I have a copy of their manual from 2 months ago, and it did have a feature to disable the quasi-ECC feature, but they strongly recommended you use it. I disabled it and ran read/write tests all night with no problems.

I would still recommend you not use a jumper there since they seem to have intentionally wanted to remove the 'feature' by not explaining the jumper in the manual.

I just had to know what was the purpose of the jumper since they deliberately covered up the sticker on the case for the jumper configuration.
Anything 8 gig and up acting as a permanent RAM drive you want to run with ECC. Doing it on the cheap with non-ECC is the wrong approach. Large ram drives simply have to use ECC RAM. So not using ECC and then disabling their "quasi-ECC" (however well that works) is a bad plan IMO.