<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html;charset=UTF-8" http-equiv="Content-Type"> <title></title> </head> <body bgcolor="#ffffff" text="#000000"> O/H Chong Yu Meng έγραψε: <blockquote cite="mid1151480551.2294.7.camel@jadeblue.localdomain" type="cite"> <pre wrap="">On Tue, 2006-06-27 at 22:17 +0300, Georgios Petasis wrote: </pre> <blockquote type="cite"> <pre wrap="">Dear Fedora users, I have an AMD-64 system which I have 32-bit fedora installed. The system was working perfectly with fedora core 4. When core 5 was released, I upgraded again to the 32-bit version. Since day one, I experienced random freezes. So, I did a clean install of 32-bit core 5. The freezes didn't stop. I get them so frequently, that it is impossible to work with the system. My system is in this state quite many months now (this means that I don't use it at all). I have tried to ask for help in this list on how to debug the freezes, but with no results. Of course I have tried to check my hardware, so I did a memtest86 check on memory and a SMART check on my (only) disk. I even changed the graphics card. No hardware errors have been found but the problem persisted. Today, I came across a kernel boot argument that can help debug such freezes nmi_watchdog=1. So, I booted my system with this option, and I haven't yet got a freeze (so I added permenantly in my grub.conf :-)) Looking in the output of dmesg, I can see strange entries, like the one at the end of this mail. Is there a problem with the cpuspeed process? Is it safe to disable it? What is its job? Is there anything I can set in my BIOS to prevent this? Finally, is it a bug that should be reported somewhere? (I have never reported a bug using bugzilla :-)) Any help will be welcomed :-) Regards, George <snip> </pre> </blockquote> <pre wrap=""> Hi George, What motherboard are you using ? I used to have a Abit motherboard that would do that to me at least once a day and had to be rebooted. Turned out to be a capacitor problem -- the original motherboard had a flaw which was that an under-rated capacitor was being used. This was reported on some message boards, and there were 2 solutions: send the board back to the manufacturer or replace the capacitor with another that had the recommended rating. Anyway, the frustrating thing was that you could not predict the freezes, and on Windows, it worked fine (unless you started Photoshop). You may want to check the message boards for your motherboard. I am using an Nvidia motherboard, K8NGM2-FID, from MSI (the ONLY brand I use now), with an Athlon AMD64 and running 64-bit FC5 with no problems so far. Regards, </pre> </blockquote> I am using a gigabyte GA-K8NNXP (nForce3 150 chipset). It is still within warranty period... Any hinds where to look for such a problem? Regards, George </body> </html>