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Old 08-17-2012, 07:41 PM
Alex Schuster
 
Default My PC died. What should I try?

Paul Hartman writes:

> If you are using a video card (instead of built-in/on-board video) I
> would try a different video card, if you have an old or spare one. I
> have had lots of video cards die from overheating and power spikes.

Sorry, I did not mention that I do not have a video card, it's onboard
video. I do not need great video power, and I wanted to have a quiet PC
that also saves power.

> I only had one motherboard ever die, a computer I gave to my father
> died after a few months... it was ASRock brand but I'm sure that is a
> coincidence. It had blown/cracked capacitors all over the
> motherboard. It did not die completely at once. It would "kind of"
> work, but started to crash randomly and became worse and worse until
> finally it wouldn't boot at all. I replaced the MB, but kept the same
> CPU, RAM everything else, and it has been working ever since. That was
> after we bought a new power supply that didn't make any difference.

I'd also say this is unusual. I had a board die, but that was my own
error

Well, all I can do now is to get a new board and see if things will be
okay then.

Thanks for all your responses! I know this is not really related to
Gentoo, but that's what I love this list for, people are very helpful
and competent here.

Wonko
 
Old 08-17-2012, 07:55 PM
Nikos Chantziaras
 
Default My PC died. What should I try?

On 17/08/12 10:50, Alex Schuster wrote:

Booting good old memtest86 ran for an hour and only found one error,
then I aborted, removed three of my four memory modules (4GB each), and
tried different ones in the first bank. Memtest86 again did not find
much errors, but froze once.


It finds errors in *all* modules?
 
Old 08-17-2012, 11:27 PM
 
Default My PC died. What should I try?

Mouse-to-mouse resuscitation?

Unless it's headless.

--
... _._. ._ ._. . _._. ._. ___ .__ ._. . .__. ._ .. ._.
Felix Finch: scarecrow repairman & rocket surgeon / felix@crowfix.com
GPG = E987 4493 C860 246C 3B1E 6477 7838 76E9 182E 8151 ITAR license #4933
I've found a solution to Fermat's Last Theorem but I see I've run out of room o
 
Old 08-19-2012, 09:09 PM
Alex Schuster
 
Default My PC died. What should I try?

Dale spent two cents:


Just my two cents here. Problems like this are usually the power
supply. Could it be the mobo, yes it could but the power supply is more
likely, usually cheaper to replace and easier to. I had a friends puter
that was acting weird, random reboots and such, it was the power
supply. A bad power supply can cause all sorts of weird problems.


Indeed. Well, so can bad capacitors or a hair crack on a motherboard,
but those are rare I tink.



If you can, unplug everything including the CD/DVD drive. No hard
drives either. Just play with the BIOS. Basically, don't try to boot
anything, just look at the BIOS itself. If it acts weird, start with
the power supply. If you have to, go to a local place and pick up a
cheap power supply.


I got three from a friend that once were mine, and I know that at least
one of them is definitely working. But the effect was the same.




Random problems are hard to fix sometimes. You just have to swap things
until you find the bad part. I would put the odds at 80% that it is the
power supply tho.


I hoped so, as I do not have board or CPU to swap.


While at it, do you know what brand and the wattage of your power
supply? It could be that someone on here as experience with that
particular brand or even that exact model.


I could look it up, but then, it's not new, and was one of the few parts
that survived a major hardware failure half a year ago. Maybe it got
damaged a little aready then. It seemed to work fine, so I kept using
it. These things are not cheap, as I tend to buy quality ones that are
silend and efficient.


I'll get a new board tomorrow, and hope I will have all back working
soon. I'm very used to my desktop PC. I have a notebook that is way
faster, but it's new and I don't have all my stuff on it yet. Oh, and it
runs Windows 7... I'm not sure yet if I will a Gentoo VM, or if I will
install Gentoo natively and run Windows in the VM. The best would be the
option to have both, I think I read an article on how this could be
accomplished. With Gentoo it's not much of a problem, I did that
already, but Windows will need some tweaking. And I do not have much
time for this these days.


Wonko
 
Old 08-28-2012, 02:23 PM
Edward M
 
Default My PC died. What should I try?

On 08/28/2012 01:57 PM, Alex Schuster wrote:
So I had to wait. And when it became available, I wondered if it might
be the processor instead that has the problem, so I let the PC shop
diagnose CPU and board. This took until today, and they confirmed it
was the board indeed, not the CPU. Fine, I bought the board, installed
it in the PC, and guess what - it doesn't work. On the first boot I
saw some BIOS status messages, hard drives and such, but the keyboard
did not react, and then it did not boot, I got a black screen only.
And on subsequent tries, with everything (2 ISDN cards, 4 hard drives)
except for the DVD drive removed, the screen does not even turn on.
All fans spin, and the DVD-ROM tray opens when I press the eject
button. That's all. No keyboard LEDs.


This sucks. Is it a faulty board again? Is something (the PSU?)
killing the board once I turn the thing on? What will happen when I
have the next board and try again? Argh.


Hello,

I would suggest check the psu connector plugs with a multimeter to
find out if it is working properly?

http://pcsupport.about.com/od/toolsofthetrade/ht/power-supply-test-multimeter.htm

And if the motherboard is somehow shorting out inside the case
http://www.tomshardware.com/forum/307187-30-motherboard-shorting-case
 
Old 08-28-2012, 08:57 PM
Alex Schuster
 
Default My PC died. What should I try?

I wrote:


Well, all I can do now is to get a new board and see if things will be
okay then.


This took longer than expected. The board I wanted (the same I already
have) was not available, I had to order it. Strange, there is only one
that has the features I want - AMD3+ chipset, four memory banks, USB 3,
and on-board graphics.


So I had to wait. And when it became available, I wondered if it might
be the processor instead that has the problem, so I let the PC shop
diagnose CPU and board. This took until today, and they confirmed it was
the board indeed, not the CPU. Fine, I bought the board, installed it in
the PC, and guess what - it doesn't work. On the first boot I saw some
BIOS status messages, hard drives and such, but the keyboard did not
react, and then it did not boot, I got a black screen only. And on
subsequent tries, with everything (2 ISDN cards, 4 hard drives) except
for the DVD drive removed, the screen does not even turn on. All fans
spin, and the DVD-ROM tray opens when I press the eject button. That's
all. No keyboard LEDs.


This sucks. Is it a faulty board again? Is something (the PSU?) killing
the board once I turn the thing on? What will happen when I have the
next board and try again? Argh.


Wonko
 
Old 08-28-2012, 09:21 PM
Volker Armin Hemmann
 
Default My PC died. What should I try?

Am Dienstag, 28. August 2012, 22:57:43 schrieb Alex Schuster:
> I wrote:
> > Well, all I can do now is to get a new board and see if things will be
> > okay then.
>
> This took longer than expected. The board I wanted (the same I already
> have) was not available, I had to order it. Strange, there is only one
> that has the features I want - AMD3+ chipset, four memory banks, USB 3,
> and on-board graphics.
>
> So I had to wait. And when it became available, I wondered if it might
> be the processor instead that has the problem, so I let the PC shop
> diagnose CPU and board. This took until today, and they confirmed it was
> the board indeed, not the CPU. Fine, I bought the board, installed it in
> the PC, and guess what - it doesn't work. On the first boot I saw some
> BIOS status messages, hard drives and such, but the keyboard did not
> react, and then it did not boot, I got a black screen only. And on
> subsequent tries, with everything (2 ISDN cards, 4 hard drives) except
> for the DVD drive removed, the screen does not even turn on. All fans
> spin, and the DVD-ROM tray opens when I press the eject button. That's
> all. No keyboard LEDs.
>
> This sucks. Is it a faulty board again? Is something (the PSU?) killing
> the board once I turn the thing on? What will happen when I have the
> next board and try again? Argh.


so - instead of changing the PSU, the obvious culprit, you got a new board AND
USED THE SAME PSU?

I am just saying - one faulty PSU fried three of my boards. Enermax... will
never buy again.

The fans spin, so not all hope is lost. Keyboard, ps/2? usb?

But before you do anything else, change the PSU.

--
#163933
 
Old 08-28-2012, 10:02 PM
Paul Hartman
 
Default My PC died. What should I try?

On Tue, Aug 28, 2012 at 9:23 AM, Edward M <martinezedward228@gmail.com> wrote:
> And if the motherboard is somehow shorting out inside the case
> http://www.tomshardware.com/forum/307187-30-motherboard-shorting-case

I completely forget that I had this happen once. The case design was
such that part of the motherboard contacted metal of the case. When I
tried to turn on, it would short and fail to boot up. I had to get a
piece of sticky film and made a layer on the case in the area where it
was touching. After doing that it worked fine.
 
Old 08-28-2012, 10:08 PM
Michael Mol
 
Default My PC died. What should I try?

On Tue, Aug 28, 2012 at 6:02 PM, Paul Hartman
<paul.hartman+gentoo@gmail.com> wrote:
> On Tue, Aug 28, 2012 at 9:23 AM, Edward M <martinezedward228@gmail.com> wrote:
>> And if the motherboard is somehow shorting out inside the case
>> http://www.tomshardware.com/forum/307187-30-motherboard-shorting-case
>
> I completely forget that I had this happen once. The case design was
> such that part of the motherboard contacted metal of the case. When I
> tried to turn on, it would short and fail to boot up. I had to get a
> piece of sticky film and made a layer on the case in the area where it
> was touching. After doing that it worked fine.

Cases usually ship with standoffs to prevent that kind of thing. The
standoffs look like screws with screwholes in them, and a hexagonal
shaft you can manage with your fingers, a socket wrench or
(non-needlenose) pliers.

--
:wq
 
Old 08-28-2012, 10:57 PM
Paul Hartman
 
Default My PC died. What should I try?

On Tue, Aug 28, 2012 at 5:08 PM, Michael Mol <mikemol@gmail.com> wrote:
> On Tue, Aug 28, 2012 at 6:02 PM, Paul Hartman
> <paul.hartman+gentoo@gmail.com> wrote:
>> On Tue, Aug 28, 2012 at 9:23 AM, Edward M <martinezedward228@gmail.com> wrote:
>>> And if the motherboard is somehow shorting out inside the case
>>> http://www.tomshardware.com/forum/307187-30-motherboard-shorting-case
>>
>> I completely forget that I had this happen once. The case design was
>> such that part of the motherboard contacted metal of the case. When I
>> tried to turn on, it would short and fail to boot up. I had to get a
>> piece of sticky film and made a layer on the case in the area where it
>> was touching. After doing that it worked fine.
>
> Cases usually ship with standoffs to prevent that kind of thing. The
> standoffs look like screws with screwholes in them, and a hexagonal
> shaft you can manage with your fingers, a socket wrench or
> (non-needlenose) pliers.

In my case (no pun intended) it was shorting even with the standoffs
because of the way a cut-out in the metal under the motherboard had
rolled edges that curled up toward the motherboard. It was a known
defective-by-design situation and later revisions of the case solved
the problem. I think it was a Thermaltake case if I remember
correctly.
 

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