I'm planning to use one of two old computers as a low-volume backup server. The machine will be online and files will be backed up over ssh/rsync. I will do a minimal install of Ubuntu or Debian server.
The specifications of the machines are as follows:
- Pentium3 1GHz Coppermine CPU with two 168-pin SDRAM DIMM slots with 320MB RAM (256MB and 64MB)
- Pentium3 450MHz Katmai CPU with three 168-pin SDRAM DIMM slots with 384MB RAM (256MB and two 64MB). The motherboard in this machine seems to be a little more reliable.
I only have 384MB of 168-pin SDRAM DIMMs available in total.
For the task of low-volume backup server, does it really matter which one I use? The difference in RAM is small and a previous minimal install of Ubuntu 8.04 server used <20MB RAM anyway. However, the Coppermine CPU is more than double the speed if the Katmai, so I should use that one?