I am looking for a replacement motherboard for a Dimension 4600. Can't get any info from Dell. The original board failed 3 months after the warranty expired. I'm no expert so will need help. The exsisting board has a Pent 4 Micro-ATX socket 478,2.66G,512,533. Any info will be appreciated. Thanks, Paul PCBUILD maintains hundreds of useful files for download visit our download web page at: http://freepctech.com/downloads.shtml