some socket 462 boards coulddo it. Does anyone else remember the old dual AthlonMP rigs.
True these were also serverboards, but back in the day, it was a first inportant step toward multi-cored processing, and helped software to evolve so that when the first s939 athlon64 dual core came out, windoze and linux wer able to take advantage of it.
Intel had a similar set-up with dual slot 1 'katmai' pii chips, but didn't continue the trend with the p4, as they'd moved to xeon already.
AMD on the other hand continued to make AthlonMP setups until socket 940, a modified version of s939 specifically for the 'new' generation of Opteron processors.
those old athlonMP rigs were far superior to the dual piii rigs, because not only did the athlonMP chip clock higher than the pIII katmai, which topped out officially at 600mhz (750 with oc friendly mb and water cooling), but the AMD chips also had newer instruction sets that allowed a high end athlonMP rig to smoke the new single core s478 P4 machines intel was putting out.
I still run my athlonMP with a pair of 2200+ chips and winXP for a few key apps that dont scale well to higher clockrates ann dont play nice with win7. It also runs a pair of 100mw wifi usb cards to function as a network bridge to extend my wifi router's pathetic range so the whole house is covered evenly.
but to answer your question no, socket AM3 chips dont do multi-socket configuration, and neither does socket fm2. for that you need to go with the newest generation opterons as another poster already said.