Heya all, I just pulled a 1x1GB stick of PC2700 DDR out of my buddy's system to stick into mine. Currently, i'm running 2x512 pc3200 in dual channel. Here's the problem. After i stick in the 1gb module, i obviously am not running in dual channel any more. Whats bad is the read/write speeds on my ram absolutely plummeted: Read: Before:4.7GB/s After: 2.4GB/s Write: Before: 2.4GB/s After: 0.8GB/s Also ran HL2 Lost Coast stress test, my fps went down from 87 to 60. Which is also bad. On the other hand, TrackMania SUnshine actually gained 10-15fps in some levels. Two questions: 1. Are the read/write speeds of the ram in single channel mode fast enough to do most things without major performance hits? Is the tradeoff of 2GB of ram versus halving speed worth it? Keep in mind i mostly game and do 3d rendering work with this computer. 2. Is it possible to do a 2x1gb + 2x512mb setup and run it in dual channel? Thx in advance!