> 2009/6/30 Steve Kemp <st...@steve.org.uk>: >> On Tue Jun 30, 2009 at 17:34:48 +0100, Stephen Rowles wrote: >> >>> I'm wondering if it might be a faulty PSU? >> >> I think its a tie between PSU and overheating. >> >>> It behaves the same regardless of which kernel I select so I don't >>> think >>> it is related to any updates, typical to get a hardware failure on the >>> PC >>> that runs the telly during Wimbledon week! >> >> If you leave the machine shut down for an hour or so, then power it >> up does it get futher? (If so that would point more definitively to >> overheating.) >> > Based on current weather conditions(HOT) and the odd butterfly > effect..., I would say overheating is the most likely cause. > Check that all the fans are working well, and don't have dust in them > and there is good air flow through them. > Another option is the paste between the fan and the CPU drying out and > going too powdery. > I had a similar problem, and replacing the CPU paste and cleaning the > fan fixed the problem. > The result was a CPU that ran 15 degrees cooler. > I now set the HD to automatically spin down after 20 mins of no use > for temperature reasons. > > The PSU has already span up the HD and read the grub boot sector, so I > don't think the PSU is at fault. > > James >
More indications that it might be PSU related. Removing the USB tv tuner (which draws full usb allowed power IIRC) let it boot further, but now powers off part way through the boot sequence. It won't complete the boot from USB either I've checked the fans etc. and they are all ok. PC has been off all day before I came home and started trying to figure out what is wrong. Having said that I'm going to check the CPU cooler, CPU in the bios shows as 45 degrees just sitting there doing nothing, which seems a bit hot. And as I've typed this it has gone up to 49 just sitting on the bios screen which doesn't seem right! The bios is set to auto shutdown set if it gets too hot so that seems a likely culprit now. -- Please post to: Hampshire@mailman.lug.org.uk Web Interface: https://mailman.lug.org.uk/mailman/listinfo/hampshire LUG URL: http://www.hantslug.org.uk --------------------------------------------------------------
