A short time ago a guy who goes by the nickname Drake Edgewater in the [x264 benchmark list] posted [here] at my site using the name Sjaak Trekhaak, so I contacted him via eMail, and after a very good conversation he said he’d send me some old hardware he doesn’t need any more, and basically for free! Wow.
So, there were some cool pieces in that package, like a [Mylex AcceleRAID 352] (64-Bit 33MHz SCSI RAID-5), an [Adaptec AHA-29160] SCSI controller, some EDO-DRAMs and some SDR-SDRAMs. The most intriguing piece however was an old Siemens-Nixdorf system monitoring board for ISA slots, part number “S26361-D703-V6”. Unable to locate any documentation for the card itself I have tried to find out what I can. But first some pictures:
Now the funniest thing is, that the card is not detected by any operating system I tried so far. That would include Debian 6.0.7 Linux as well as Windows 2000 Professional. Windows hardware detection finds nothing, and on Linux, this is what dmesg | grep -i isa has to say, pretty much nothing:
[ 7.260292] isapnp: Scanning for PnP cards... [ 7.616123] isapnp: No Plug & Play device found [ 7.677403] EISA: Probing bus 0 at eisa. [ 7.677666] EISA: Detected 0 cards.
The only hint of any activity is that the Maxell battery on the card gets warm during operation, indicating that it is being charged. The rest of the card stays cold though. I am not sure if it’s even meant to communicate with the host system via the ISA bus, or maybe via other means like the serial interface or one of the strange plugs on the bracket.
Also, there is this strange internal cable on the card with a 2×7 pin plug. Drake Edgewater is currently investigating whether he can find a corresponding piece at his place, to see whether we can learn more by determining what it should be hooked up to.
In the meantime I tried to find whatever documentation I could get on the IC chips on the card. Most of the chips are serial interfaces and line drivers, some clock generators, an SRAM chip, an RTC and a microcontroller, which seems to be the heart of the setup. Here is the entire set of IC documentation in PDF form:
- [74HCT373 latch]
- [HEF4069UB hex inverter]
- [MAX232ACWE serial line driver]
- [SLLS065F serial line driver]
- [SC26C92 dual UART]
- [NCH039C crystal oscillator / clock generator, 3.6864MHz]
- [NCH069C crystal oscillator / clock generator, 12MHz]
- [80C535-N microcontroller, 12MHz] (The “brain” of the card?)
- [DP8570A RTC]
- [KM62256CL6-7L SRAM]
So if you can learn anything from those, or if you happen to know this cards functionality, I’d be happy to hear about it! Some actual documentation would be awesome of course, as I couldn’t find anything about the card itself.