Ok, I've kinda hit a wall with o² so just wondering who else out there has played with/runs dual/quad socket systems! Post your specs and of course, TTIWWOP o²: 2x AMD Opteron 275 2.2ghz Dual Core 4x 512mb Micron HP DDR400 ECC Reg 1x 320gb 2.5" Toshiba HDD Gigabyte nVidia GT240 1u T-Win 400w PSU Soundblaster Live! 24bit No optical drive XD Ignore the soundcard in the following pics, it has been replaced with the SB L! Next to a standard size m-atx case: I also have 2x Tyan Tiger i7525 (S2672) Boards with Dual Xeon 603 2.4ghz, with HT. They just need memory (hard to find cheap DDR ECC REG) and I will run them as L4D2 Game servers and render pigs. Also there is a Gigabyte 8IPDXR board sitting here with no CPU/RAM which will be finding a home soon in another server So, what do you have?