Hi folks. I've just build a new FC4 system on a spare tower box I had and all worked fine. This system is replacing an old RH7.3 system running in a rack chassis which has a different motherboard etc. However, when I transferred the HDD to the rack chassis and powered up I had 2 problems. This problem is that a few minutes after booting up the following starts popping up in all available consoles (plus a kwrite window). Message from syslogd@eddie1 at Thu Oct 20 21:13:18 2005 ... eddie1 kernel: CPU0: Temperature above threshold Message from syslogd@eddie1 at Thu Oct 20 21:13:18 2005 ... eddie1 kernel: CPU0: Running in modulated clock mode However, the CPU isn't overheating and I've no idea why it's running in 'modulated clock mode' or even what it is. I've left the box powered up in the BIOS 'PC Health Check' screen for 15 minutes and the CPU temp stays at around 70degs with the permitted range stated as being 60-90degs. Anyone any ideas what these mean, and how I can sort it? The box is FC4+yum update. Cheers Gary -- Gary Stainburn This email does not contain private or confidential material as it may be snooped on by interested government parties for unknown and undisclosed purposes - Regulation of Investigatory Powers Act, 2000