this list is my idea, and i am solely responsible for any errors. thanks to several posters on this list and the amd64 list, and info available at www.monarchcomputer.com (where they sell computers bundled with fedora, as well as others) (some of these boards are bundled with their linux machines and are quoted by square brackets following the branded lists following) i can now present a larger list of 64 bit motherboards for fedora core, which satisfy these three requirements sets: 1. 939 pin for dual channel memory 2. capacity to 4 gigabytes 3. an agp slot (i'm not ready for pci-e) i've added a few here: 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) [av8 k8t800, av8 3rd eye k8t800] Asus A8V , A8V Deluxe (used by a list member) [a8v k8t800 pro, a8v deluxe] 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 [k8t neo2-f] SOLTEK SL-K8T-939 FL , SL-K8T Pro 939 PCCHIPS A20 (1.0) , A21G (1.0) (K8M800/VT8237) nForce 3 ultra (mostly): biostar nf325-a9 nf3 250 DFI Lanparty UT NF3 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 [ga-k8nsc-939, ga-k8ns ultra-939] MSI K8N Neo2-F , K8N Neo2 Platinum (used by a list member) [k8n neo2 platinum] and uli 1689: abit ul8 (M1689) 8 gigabyte mem limit! ASROCK 939A8X-M CHAINTECH S1689 (ULi M1689) GIGABYTE GA-K8U-939 (used by a list member) 1. 939 pin for dual channel memory 2. capacity to 4 gigabytes 3. a pci-e (16x) slot (if you're ready for pci-e) again, 3 groups, by chipset via k8t890/vt8237(r): abit ax8, ax8-v, ax8-3rd eye [ax8 k8t890] albatron k8x890 pro, k8x890 pro ii asus a8v-e deluxe [a8v-e deluxe k8t890] biostar k8t89-a9 epox ep-9heai gigabyte ga-k8vt890-9 [ga-k8vt890-9] jetway 939turboseries soltek SL-k890 pro 939 nvidia nforce 4 variants: abit an8, an8-v, an8-3rd eye, kn8 (nf4) an8 ultra, fatality an8, kn8 ultra (nf4 ultra) albatron k8nf4x (nf4 4x), k8nf4u (nf4 ultra) aopen nck804a-LFS (ck8-04), nck804ua-LFS (ck8-04 ultra) asus a8n-e (nf4 ultra) [a8n-e nforce4] biostar nf4st-a9 (nf4), nf4UL-a9 (nf4 ultra) chaintech vnf4 zenith ve (nf4), vnf4 ultra zenith ve (nf4 ultra) DFI lanparty ut nf4-d, nf4 infinity, nf4 dagf (nf4) lanparty ut nf4 ultra-d, nf4 ultra infinity (nf4 ultra) [lanparty ut nf4-d, nf4 dagf nforce4, lanparty ut nforce4 ultra-d] ecs nforce4-a939 (nf4), kni extreme (nf4 ultra) epox ep-9npaj (nf4 4x), ep-9npa+ultra (nf4 ultra) foxconn nf4k8ac-8ekrs (nf4), nf4uk8aa-8ekrs (nf4 ultra) [winfast nf4uk8aa-8ekrs] gigabyte ga-k8nmf-9, ga-k8nf-9 (nf4 4x) ga-k8n ultra-9, ga-k8nxp-9 (nf4 ultra) [ga-k8nf-9 nforce4] jetway 939gt4-ultra (nf4 ultra) msi k8n neo4-f (nf4), k8n neo4 platinum, k8n neo4-fi (nf4 ultra) [k8n neo4 platinum] soltek SL-nf4 pro 939 (ck804) tyan tomcat k8e(s2865) (nf4) and: ati radeon express 200(): eqs m56k9-MLF, m58k9-MLF jetway a210gdag (pro) msi rs480m2, rs480m2-IL, rx480m2 1. 939 pin for dual channel memory 2. capacity to 4 gigabytes 3. sli capability these are all nvidia's nforce4 sli based: abit an8 sli, fatality an8 sli albatron k8sli asus a8n-sli, a8n-sli deluxe, a8n-sli premium [a8n-sli nforce4] biostar n4sli-a9 (ck8-04-sli) dfi lanparty ut nf4 sli-d, lanparty ut nf4 sli-dr, lanparty nf4 sli-dr, nf4 sli infinity [lanparty ut nf4 sli-dr, lanparty nf4 sli-dr] epox ep-9nda+sli foxconn nf4sk8aa-8krs, nf4sk8aa-8ekrs gigabyte ga-k8n pro sli, ga-k8n ultra sli, ga-k8nxp-sli [ga-k8n ultra sli, ga-k8nxp-sli nforce4 sli] jetway 939gt4-sli msi k8n sli platinum, k8n diamond : Do What Thou Wilt : : Shall Be : : The Whole of The Law :