First of all, let me introduce myself to the list. My name is Carlos Murillo, computer enthusiast and HP collector, though my collection is still pretty small. Many of my choices when it comes to computing are influenced by my addiction to automation and data aquisition. I have been lurking for a few weeks now, and I have learned a lot about classic computing from the members of the list. Thanks to you all. Now, I would like to ask for advice: I have a VAXstation 4000/60 sitting in front of me. I have been told that this ran ok about 8 years ago; I really don't know if this fits the topic of the list (I guess it could be slightly newer than 10 years). The thing is, it won't boot. When it is turned on, it flashes several colors on the monitor, it tests its 16M of RAM and then it aborts and dumps me to some sort of monitor program. This is what the screen shows: KA46-A V1.1-31E-V4.0 08-00-2B-2A-F8-AB 16MB <bargraph representing memory tested here> ?? 003 3 DZ 0112 <---loud beep heard here I played with several of the monitor commands; in particular, here are two that seem to give some info about this machine: VMS/VMB ADDR DEVTYPE NUMBYTES RM/FX WP DEVNAM REV ------- ---- ------- -------- ----- -- ------ --- ESA0 08-00-2B-2A-F8-AB DKA300 A/3/0 DISK 209.81MB FX RZ24 4041 ..HostID.. A/6 INITR KA46-A V1.1-31E-V4.0 08-00-2B-2A-F8-AB 16MB DEVNBR DEVNAM INFO ------ ------ --------------------------------------- 1 NVR OK 2 LCG OK HR - 8 PLN FB - V1.1 3 DZ ?? 003 0112 4 CACHE OK 5 MEM OK 16MB= SY=8MB, S0/1=8MB, S2/3=0MB, S4/5=0MB 6 FPU OK 7 IT OK 8 SYS OK 9 NI OK 10 SCSI OK 3-RZ24 6-INITR 11 AUD OK Only device number 3, "DZ" seems to be faulty, and is the same device appearing in the original error. What is this device? Thanks for any help, Carlos.