On Mon, January 4, 2016 6:08 pm, David Both wrote: > Power supply > > On 01/04/2016 07:03 PM, tdukes at palmettoshopper.com wrote: >> Hello, >> >> I have an old IBM Netvista. Lately, it would seem to go into sleep mode >> but I have all that disabled. I would have to power off to wake it up. >> Now I think its done. I can't even get to the CMOS/BIOS. The power light >> is on but no beeps or anything spinning up. >> >> I have two of these Netvistas and had put on away when I upgraded one of >> the machines. I pulled the HD from it and installed it in the other. >> Same thng. I'm fairly certain it was working when I updraded. I've >> swapped out monitors as well. >> >> Power supply or hard drive, any ideas? In my book in the order of likelihood I would list the following: 1. system board (motherboard, meaning the same, but I still consider "motherboard" a jargon ;-) - likely reasons: leaked electrolytic capacitors either filtering BUS leads or around CPU, or microcrack 2. Power supply 3. some dead expansion card - remove all you can and try to boot as minimal amount of metal as you can (swap add-on video card for another if you don't have on board video chip). I would even disconnect whatever cables lead to front (and/or rare) panels - some short in them can cause this too. 4. memory or cpu (main CPU in the socket 0 - the one the things boots on in multi-socket boards) re-seat memory and CPU if you didn't try yet and try to boot again. Try to boot with minimal hardware, only one CPU, minimum RAM. Good luck! Valeri >> >> TIA >> _______________________________________________ >> CentOS mailing list >> CentOS at centos.org >> https://lists.centos.org/mailman/listinfo/centos >> >> -- >> >> >> ********************************************************* >> David P. Both, RHCE >> Millennium Technology Consulting LLC >> Raleigh, NC, USA >> 919-389-8678 >> >> dboth at millennium-technology.com >> >> www.millennium-technology.com >> www.databook.bz - Home of the DataBook for Linux >> DataBook is a Registered Trademark of David Both >> ********************************************************* >> This communication may be unlawfully collected and stored by the >> National >> Security Agency (NSA) in secret. The parties to this email do not >> consent to the >> retrieving or storing of this communication and any related metadata, as >> well as >> printing, copying, re-transmitting, disseminating, or otherwise using >> it. If you >> believe you have received this communication in error, please delete it >> immediately. >> > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos > ++++++++++++++++++++++++++++++++++++++++ Valeri Galtsev Sr System Administrator Department of Astronomy and Astrophysics Kavli Institute for Cosmological Physics University of Chicago Phone: 773-702-4247 ++++++++++++++++++++++++++++++++++++++++