Links:
Fixing the battery
This machine came with a dead battery, and it causes boot failures.
The battery is embedded in a “chip” like thing that contains a real-time clock, memory and the battery, all helpfully enclosed in an epoxy layer - so the battery cannot be replaced. The type of the thing is Odin oec12c887a. A replacement for this, the Dallas ds12C887A is still available but sourcing a new one is hard.
I attempted to repair the module by adding an external battery. Links:
As the device is not socketed I decided to use a soldering iron to chip away the exterior to expose the pins that need to be connected to the new cr3032 cell:
That resulted in this:
These are the connections to the expired cell. Next step is to add the new cell battery:
And with that the machine can boot again and remember its settings 
Harddisks
The machine was altered, it came with 2 harddisks and a CD reader. The extra harddisk was lodged between the CD drive and the other drive and not fixed. One disk seems to contain Windows 2000, the other Windows 98. Both disks have problems and give errors, but you can get the OSes to boot, sometimes partially. The Windows 2000 disk contains the Sniffer software.
The first drive (I assume the original) is the following:
Quantum Fireball 1280AT, 1281MB
The second one is:
Quantum Fireball 2.1AT, 2.1GB
The floppy drive is sadly missing, making it impossible to install an OS as the CD/ROM cannot be booted from.
The harddisks will be replaced with an IDE to SD card converter.
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