thanks to several posters on this list and the amd64 list, i can now present a list of 64 bit motherboards for fedora core, which satisfy these reqirements: 1. 939 pin for dual channel memory 2. capacity to 4 gigabytes 3. an agp slot (i'm not ready for pci-e) these fall into three groups, according to chipset. via (mostly k8t800/vt8237(r)): Abit AV8 (1.1) , AV8 Third Eye (this one was bundled w/ fc by monarchcomputer.com) Asus A8V , A8V Deluxe (used by a list member) ECS KV2 , KV2 Extreme , KV2 Lite EPoX EP-9HDA3I Pro EQS A53K9-ALF GIGABYTE GA K8V Ultra 939 MSI K8T Neo2-F , K8T Neo2-FIR SOLTEK SL-K8T-939 FL , SL-K8T Pro 939 PCCHIPS A20 (1.0) , A21G (1.0) (K8M800/VT8237) nForce 3 ultra (mostly): DFI Lanparty UTNF3 Ultra-D EPoX EP-9NDA+ , EP-9NDA3J , EP-9NDA3I GIGABYTE GA-K8NSC-939 (nF3 250Gb) , GA-K8NS-939 , GA-K8NS Pro-939 , GA-K8NS Ultra-939, GA-K8NSNXP-939 MSI K8N Neo2-F , K8N Neo2 Platinum and uli 1689: ASROCK 939A8X-M CHAINTECH S1689 (ULi M1689) GIGABYTE GA-K8U-939 (used by a list member) hope its usefull, it has been for me. cfzeitler : Do What Thou Wilt : : Shall Be : : The Whole of The Law :