TweakTown was invisted to GeIL's Taipei factory, you can check out the coverage over here.
As you can see in the video above, the first area we visited on the factory tour was the IC testing room. In this room there are a dozen or more IC testing machines. Their purpose is to validate each and every memory chip that is placed on to GeIL RAM. However, it's not just GeIL RAM. GeIL's Taipei factory is operated under a different business under the same group called Valor Precision Testing Co., Ltd. Valor actually help test IC's for competing memory companies - for a fee, of course. We would suspect judging by the vast amount of IC testing machines that this is a big part of GeIL / Valor's business..