Thanks, you all were right, eventually I found the problem. The capacitor fell down from the back of a memory module. https://drive.google.com/open?id=1XM1flQz7lMotcmNZdnDozLOFDJeaf6v-rA Now I resoldered it and the system is working, here are the info:
rocky:/proc# uname -a Linux rocky 2.6.26-2-parisc #1 Sun Mar 4 17:37:14 UTC 2012 parisc GNU/Linux rocky:/proc# cat cpuinfo processor : 0 cpu family : PA-RISC 2.0 cpu : PA8700 (PCX-W2) cpu MHz : 875.000000 model : 9000/785/C3750 model name : Allegro W2 hversion : 0x00005dc0 sversion : 0x00000481 I-cache : 768 KB D-cache : 1536 KB (WB, direct mapped) ITLB entries : 240 DTLB entries : 240 - shared with ITLB BTLB : not supported bogomips : 1744.89 software id : 2000777092 rocky:/proc# cat meminfo MemTotal: 3627816 kB MemFree: 3550872 kB Buffers: 5468 kB Cached: 40312 kB SwapCached: 0 kB Active: 31052 kB Inactive: 28252 kB SwapTotal: 979956 kB SwapFree: 979956 kB Dirty: 36 kB Writeback: 0 kB AnonPages: 13540 kB Mapped: 10552 kB Slab: 5244 kB SReclaimable: 2304 kB SUnreclaim: 2940 kB PageTables: 976 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 2793864 kB Committed_AS: 91584 kB VmallocTotal: 245728 kB VmallocUsed: 3036 kB VmallocChunk: 242108 kB rocky:/proc# I don't understand, though, why I see only 4 GB of memory while I actually have 8. I guess I'll have to upgrade to the latest version but ... that's another episode :-) thanks everybody and best regards Paolo 2016-02-11 0:02 GMT+01:00 <biggran...@tds.net>: > Looking at the pads by the 24, I don't believe anything was ever soldered > onto those pads. Double check the motherboard again for empty pads, and > post pictures. You might also want to inspect the PCB's on the hard drives > for evidence of missing caps. And any other cards that may be in the > computer. > > Darren Clark > > > > On 2/10/2016 3:50 PM, Paolo Borsa wrote: > >> Hello HPPA community, and forgive me for this off-topic, but I really >> don't know where to ask. >> >> I have an HP C3750, and today I was moving it from the garage to a >> (hopefully) stable and operative position. >> While moving it, I heard clicking inside it. I opened and found a >> tantalum capacitor loose. (photo >> https://drive.google.com/open?id=1l2YQZoiqVUVnl86-GgWdhghdLfpNEcwneQ ). >> I checked the mother board, and I suspect it detached from the position >> "24" on the centre left of the photo >> https://drive.google.com/open?id=1nKsaqQWNHBItPKLusSSTFgCYB4jNI2JQOA >> next to the right of that big unpopulated connector 3 x 12. >> >> If anybody have an HP C3750, would be so kind to check if in that >> position there is, or not, that capacitor I found loose, and with what >> polarity (where is the darker band)? >> >> Thank you all very much and sorry again for the off topic. >> >> best regards >> >> Paolo >> >> >
