NAS/FreeNAS running for a year now

My NAS server has been running for a year now. The system is build into a modded case with a green radioactive logo (see below). These are the other hardware components:

CPU: AMD Sempron(tm) Processor LE-1300
Motherboard: ASUS M3N78-VM AM2+/AM2 NVIDIA GeForce 8200 HDMI Micro ATX
Memory: 1GB Kingston (kit of 2x512MB) KHX6400D2LLK2_1G
Harddisk: 1TB Samsung HD103UJ
PSU: standard noname 350W

The power usage is on average 56 Watt. It is configured with Wake-On-Lan and it is additionally scheduled to start at 10:30 and stop at 23:30 to save costs of electricity.

I have installed FreeNAS and the system boots from a 128KB usb-stick. This is the latest welcome screen.