This is an Alpha SX164, running Linux (Red Hat 5.0 with kernel and binutils upgrades) ./config.guess alphapca56-unknown-linux-gnu uname -a Linux picu-sgh.demon.co.uk 2.1.115 #14 Sun Aug 9 07:31:05 BST 1998 alpha unknown rpm -q binutils binutils-2.9.1.0.4-2 Seems to run well so far. Thanks