Dell Poweredge R200

Small, low noise, good power for the cost

Memory limited to 8 gigs

Great unit, easy setup, very quiet for a 1U server. Used as a web content gateway filter

None that I can think of

Inexpensive but fairly powerful. It's not the 1950 by any means, but for the applications where I'm using these, I didn't need it to be

The machine is well built, power efficient with the Intel processor, quiet and has pleasant management features like the virtual console and PXE booting

There is no AHCI mode for the SATA controller even though the chipset supports it. Under Linux this means you cannot hotplug the SATA devices

The R200's use of non-registered memory gives memory intensive programs a 10-25% boost over the PE 1950. I have tested a PE 1950 III with two 3.16GHz quad-core Xeons against a R200 with one 2.83GHz quad-core Xeon using a memory intensive program that...

The maximum Xeon supported is a quad core 2.83 GHz. I am hoping Dell supports higher speeds with updated Bios

length wise, short

none i can think of