I have a 5000/25 with rev 2.0m PROM, and it's not happy with an r4k daughtercard. What's the minimum PROM version that will support the r4000 daughterboards on a 3MIN and MAXINE? Anyone got salvage PROMs from a dead motherboard, or got 5000/{20,25,33} DECstation PROMs they'd consider swapping?