I'm not sure how many users you plan on serving with that Asterisk box... that does seem like a bit of overkill though. I've read where a couple of hundred users are served quite well with a 1ghz CPU and a gig of RAM (single CPU). CentOS has a 64bit edition for the AMD CPU. Dual-Core does not require anything special from the OS, no more that Hyperthreading did. The OS just sees 2 CPUs per DIE. So, the OS will see 4 CPUs. The only issue you will need to deal with is the 64-bit compatibilities. I've played with the 64-bit versions and you may run into some compatibility issues for software not specifically compiled for 64-bit and have to re-compile rather than use the binaries or straight RPMs. Scott ----- Original Message ----- From: centos-bounces at centos.org on behalf of Erick Perez Sent: Sat, 5/13/2006 12:21am To: CentOS mailing list Subject: [CentOS] Centos and Dual Core Opteron in a Tyan Mobo Hi folks, an Asterisk (www.asterisk.org) box will be built with the following specs and I wanted to know if CENTOS has a built process/config/parameter/special distro to target the AMD Opteron Dual Core plataform: 2 amd opteron 265 dual core 1.8 Ghz 2mb l2 cache 2x1024 ocz c2-6400 dual channel gold GX XTC 2 Seagate 16mb cache 300 GB barracuda 7200 drives another 2 Seagate 500 GB 16mb cache baracuda ata 7200 drives lite on dual layer lightscribe 16x dvd+rw/rw x48 drive 4 port Sata Raid controller raid - 10 2 gigabit E broadcom 10/100/100 GBE lan controller Tyan Thunder K8WE (S2895) motherboard or Tyan motherboards with ServerWorks BCM5785 Chipset (or similar from Tyan only) All your comments will be appreciated. Thanks in advance. -- ------------------------------------------- Erick Perez Linux User 376588 http://counter.li.org/ (Get counted!!!) Panama, Republic of Panama _______________________________________________ CentOS mailing list CentOS at centos.org http://lists.centos.org/mailman/listinfo/centos