General Chat Thread, pc shutsdown after a few seconds even on live cd but not in BIOS in General; so got 2 machines that boot into BIOS no problem and can sit there for hours.
Boot to HD and ...
26th April 2011, 12:56 PM #1
pc shutsdown after a few seconds even on live cd but not in BIOS
so got 2 machines that boot into BIOS no problem and can sit there for hours.
Boot to HD and after 5 secs or so power off
disconect HD boot to live cd turns off after 5 secs.
any ideas , have changed , CPU, Memory and graphics card
26th April 2011, 01:06 PM #2
power supply isnt up to delevering a good steady output for long enough?
26th April 2011, 01:09 PM #3
Could be power supply or even the RAM.
26th April 2011, 01:09 PM #4
Is the computer overheating?
26th April 2011, 02:22 PM #5
Check the fans and check the cpu sink is fitted correctly it sounds like overheating.
26th April 2011, 02:26 PM #6
yes, like above & Double check the CPU fan is plugged into the CPU fan headder. (i.e. not the case fan header).. If that all checks out run memtest.
Last edited by chazzy2501; 26th April 2011 at 02:28 PM.
26th April 2011, 02:42 PM #7
as i said it will sit on bios screen all day temp never gets above 20 degrees
tried power supply and still same result
also tried different ide header and new disk
26th April 2011, 02:45 PM #8
Bios isn't drawing much power so that to me is a red herring.
26th April 2011, 02:50 PM #9
What make & model are they? Could be a known mobo fault.
26th April 2011, 02:53 PM #10
+1 for that, I had an old admin machine that would last for 5 minutes or so when booting windows and after some testing i found that the cpu heatsink wasn't making contact properly and the only way to keep it going was to lie it on its side
Originally Posted by FN-GM
26th April 2011, 03:09 PM #11
All good suggestions above, I'd also try disconnecting anything USB (especially stuff that draws power).
26th April 2011, 04:38 PM #12
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