Strange. Why this chassis works fine? :)) It's HARC V4.1.9 (tcs 3.5) and HDSP V3.1.7 (tcs 4.3). Looks like that it doesnt have any problem.

If it works for you, great! What code is on your NMC? I've run into the problem in the past putting a card with TCS 4.5 in a box with HARC/HNMC TCS 4.0, the DSP wouldn't ever boot properly. Perhaps there is something in the 4.5 HDSP code that is dependant on the HARC code? I've also had the problem with my HNMC being of lower TCS version than the DSPs and even though the card would boot, I never got anything but a Question Mark in TCM. I did have a few locations with this mismatch that worked without problems: HARC 4.2.32 (TCS 3.6) HDSP 2.1.85 (TCS4.0/4.2) HNMC 7.1.8 (TCS4.0) -- Adam Barnhill Support Engineer, TotallyFabricated.com Information Technology Engineer, Poplar Bluff Internet, Inc. / Semo.net P.O. Box 190 | Poplar Bluff, MO 63902 | 573.686.9114, <http://www.semo.net/> Home of TotallyFabricated.com the creators of Total Scrutinizer