Does anyone know how comprehensive the pwer-on Floating Point Unit test (9) is in the Vaxstation/uVAX 2000 ? Does it actually verify that the FPU is functional, or is it just looking to see if some basic indications are the it is present? The (9) FPU test is performed at power-on, and also by I'm trying to determine if the FPU in my VS2000 is actually working. Will the console ROM run (normally) without an FPU? Unfortunately the (hopefully more comprehensive) system tests don't appear to test the FPU (or perhaps they don't see mine and therefore won't test it). Can anyone with a VS/uVAX 2000 tell me if: Actually runs a test (mine just displays the testing header and halts. Another thing to try which takes longer is to run And note which tests it runs. Mine runs: F (video) - Only if set to VS2000 C (Serial) B (memory) 7 (Hdc) 6 (TPC) Noteably missing are: E (clock) D (nvram) A (mmu) 9 (FPU) 8 (Timer) 5 (Interrupt controller) 4 (color FB) - I've got it removed 1 (Ethernet interface) - I've got it removed as well. All of these pass during power-up and TEST n tests (if I have them installed). Problem is, I don't know if the system tests are supposed to test these or not - I don't have a known good Vax2000 to compare with. BTW: To run TEST 102 and 80000106 you need to have the system test "hardware key" installed - this is just a DB-25 connector on the serial-port with pins 12 and 18 connected together. Thanks, Dave -- dave06a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Collector of vintage computing equipment: http://www.classiccmp.org/dunfield/index.html