For the benefit of Martin Norin and others: one such product is the Nemonix CPU Accelerator. For the VAXstation 3100/microVAX 3100 they claim a 40 - 60% enhancement in performance. For information: Nemonix Inc. 106 South Street Hopkinton, Massachusetts 01748 (800) 435-8650 FAX (508) 435-6127 This is not an endorsement. I've never seen it work.