This box is sitting in the basement serving as an iscsi target for two clustered hyper-v servers. It's not much to look at, but it's sitting down in the basement so I rarely have to look at it. This box has about 12 virtual machines stored on it, and the performance is better than expected. It is filling the role of a cheap NAS in my test lab at home.
The case had 4 external 5.25" bays, so I put four of the hard drives in removable trays. The six 500 gb drives are in raid 10, which gives me redundancy and better performance. The SAS controller has no on-board cache, so RAID-5 performance stinks. It does however handle the RAID, so the cpu load is very small. The single core sempron handles this just fine, and at 45 watts it always stays cool with the stock HSF.
I have the storage network connected to the on-board NIC, which surprisingly supports 9k jumbo frames. The add-on nic is just for remote management. The driver is terrible, so I would not recommend this NIC for any sort of important job, but it fits my needs for the price.
I'm using Starwind iSCSI Free edition running on top of windows server 2008r2. If you're not familiar with it, it uses system ram as disk cache for Iscsi hosts. This makes write speeds incredibly fast, up to a point. This is also the reason for 8 gb of ram.
The PSU and RAM are not exactly the same as what I bought, but close enough. The RAM, 40 gb HDD and case came from spare parts.
If you are looking for the two servers, their current status is in my saved parts list. I'll publish them once I get photos and finalize the configuration.