I could run at 280MHz with no problems, but when I switched to High Performance mode in the BIOS, the machine would not be able to detect the RAM most of the time (blank screen). So it seems it has problems at 400MHz on the 900. It's either my RAM's busted or there's a compatibility issue (I am leaning towards the latter).
When I put in the original ADATA RAM, it works well at 280MHz and 400MHz.
Anyway, some users from VR-ZONE and Taiwan and also reported issues with 2GB Kingston ValueRAM that worked well with 701, but not with 900. Transcend seems OK.
For those of you who have been successful in installing 2GB of RAM in your EeePC 900, please state the manufacturer/model/speed.
Edited by mtkc, 27 April 2008 - 04:25 AM.