As someone else stated earlier, make sure that you're using true parity SIMMS - the machine will not run with any other type of memory. Another thing you might want to take into account (which stumped me for quite a while until I found the hardware reference for the system) is that a bank is NOT four consecutive SIMM sockets - the system is set up so that a bank is EVERY OTHER SIMM socket (that is, rather than the banks laid out as 00001111, they are laid out as 01010101). Hope this helps! --Sean Caron (root(a)diablonet.net) | http://www.diablonet.net