Re: Power Supply Cause of Crashes?
From: Shadow_7 (wwwshadow7_at_yaNOhoo.comNULL)
Date: 03/19/05
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Date: Sat, 19 Mar 2005 12:31:46 GMT
> I finally got a clean shutdown. Quite an ordeal. After getting through
> the fsck boot stuff and all the rest, I get to login. It cycles every
> 3-4 secon between text login and in some funky messed up graphics
> screen. It takes about 3 funkies to get back to the login. Each cycle I
> get more of the userid and password in. Finally, I get into the command
> line. Now it's the same battle of cycling on command line and funky
> stuff. 3-4 four times through it and I entered shutdown -h now. That got
> a clean shutdown. I then tried a regular boot, and bam back to the knock
> out the power. Fun, eh?
That sounds like a power supply. Mine was like that, and eventually got
to the point of barely getting past the CMOS/BIOS screens before cycling
again. It was a heat/power issue. The cheap fix was to open the case and
blow a $10.00 walmart fan on the open case, particularly at the power
supply. Ultimately I replaced the power supply though.
You might also check the battery on the motherboard. It might be doing
strange stuff if it's defaulting to !sane defaults. I had a friends
laptop who needed to enter the bios setup before booting because the
motherboard battery was dead, as well as the main battery. As long as you
entered the bios setup first after being unplugged from the wall, it
booted just fine. And you didn't even have to change anything in the
bios. Aside from the very old and small lcd display that was quite foggish.
Other random behaviors can be caused by faulty ram. Once you get past the
boot thing you might run memtest86 to check your ram. Also you might try
booting a liveCD instead of to your hard drive while doing all of this
testing. It should rule out or in pending hard drive failure, if it
behaves the same or different.
My power issue seemed linked to the electric companies brown out supply
though. You might try putting a battery(UPS) buffer between you and the
wall plug. My power supply issue also had a high pitched whine. The
hotter aka worse the issue, the louder the whine. The sound you hear with
TV's and florescent lighting, assuming your hearing is still sensitive to
those ranges.
Shadow_7
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