Hello, We have a 26 cpu Xeon 2.2 Ghz farm and had some initial problems. On thing that totally killed one of our nodes was a missing bus controller heat sink. The machine kept hanging, and eventually we replaced the entire machine. Unfortunately for us that box was our head node and caused me a huge headache until I figured out it was a heat issue. I sent the box back to the company that put the cluster together (I inherited the cluster management after someone else couldn't get it running) and they confirmed that the missing heat sync was causing the motherboard to overheat and hang. I don't know much about athlons or how their MOBOs dissipate heat but you might want to take a look a the machines that are causing you problems for missing heat sinks. For that matter you might want to add heat syncs to the bus chips, they are pretty cheap and easy to install. Hope this helps, Mark -----Original Message----- From: bioclusters-admin@bioinformatics.org [mailto:bioclusters-admin@bioinformatics.org] On Behalf Of Jeremy Mann Sent: Sunday, December 29, 2002 10:43 PM To: bioclusters@bioinformatics.org Cc: BHurwitz@twt.com Subject: Re: [Bioclusters] problems with AMD Athlon 2000+ MP > > Hi Jeremy, > > The CPU fan is made by CoolJag and is called "Skiving Fins CPU > Cooler". Is this fan AMD certified? What do you have? All heatsinks/fans are what came in the retail box. Aluminum heatsink with a blue fan which works pretty good. The one machine that's the exception has a copper heatsink which is MUCH larger than the retail heatsink. I can't remember the name of it. I have lm_sensors on all machines and honestly, there is only a 1-3 degree difference under full load between the two. Oh, the *special* copper heatsink, if I remember correctly was $35. I can take some pictures tomorrow and send them to you so you can see the difference. -- Jeremy Mann jeremy@biochem.uthscsa.edu University of Texas Health Science Center Bioinformatics Core Facility http://www.bioinformatics.uthscsa.edu Phone: (210) 567-2672 _______________________________________________ Bioclusters maillist - Bioclusters@bioinformatics.org https://bioinformatics.org/mailman/listinfo/bioclusters