On 22 September 2014 03:37, Chris Murphy <lists@xxxxxxxxxxxxxxxxx> wrote: > > On Sep 19, 2014, at 3:08 PM, David A. De Graaf <dad@xxxxxxxx> wrote: > >>> >>> On Fri, Sep 19, 2014 at 11:51 AM, Chris Murphy <lists@xxxxxxxxxxxxxxxxx> wrote: >>>> >>>> On Sep 19, 2014, at 10:18 AM, David A. De Graaf <dad@xxxxxxxx> wrote: >>>>> >>>>> When the system freezes, if X is lit (not screen-saved) the LCD >>>>> monitor looks as if it had been hit a sharp blow on the right edge so >>>>> that all the pixels have been shaken loose. >>>> >>>> Sounds like a bad motherboard. It's managing to corrupt memory in such a way that you're getting video artifacts. >>>> >> Chris, I agree. Which is why the first thing I tried was to buy a >> new different motherboard (to replace the almost new motherboard). >> The two mobo's have onboard video that appears to be different, yet the >> display during freeze is indistinguishable. > > OK but when you say different motherboard, how different? Same make and model? It could still be from the same batch; either the logic board itself, or the components. > >From David De Graaf's original email: "Originally, I had used a Gigabyte 78MT-USB3 mobo, but replaced it with an ASRock 960M/U3S3 FX mobo in a futile attempt to fix the problem." If I had to take a guess, and with PSU issues ruled out (I'm assuming "I did also change the power supply but forgot to list that with all the other things that didn't work." means "to a larger capacity one".), the other common factor is the hard drive. Possibly it's doing something that SATA3 ignores or handles better, either because of different controller chips or some difference in the driver software. Any log errors recorded when it crashes? Might be one for a kernel bug. Increasing frequency of the problem could indicate something in the drive electronics that's failing. -- imalone -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org
