Fedora Core 4 (FC4) is the fourth release of Red Hat's open community project and was released a few weeks ago. I tried both the DVD and the CD version for x86, on the LinuxCertified.com laptop, model LC2430. This is a 2.8 GHz P4, 512 MBs of RAM, 1400x1050 LCD, Intel onboard AC97 sound card, National Semiconductor NIC, 40 GB drive, combo drive and an ATi Radeon 9200 Mobility 64 MB.