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Date:      Sun, 19 Nov 2000 20:36:34 -0800
From:      Seth Leigh <seth@pengar.com>
To:        Ernie Elu <ernie@spooky.eis.net.au>
Cc:        freebsd-smp@FreeBSD.ORG
Subject:   Re: Abit BP6 failures
Message-ID:  <3.0.6.32.20001119203634.00c689f8@hobbiton.shire.net>
In-Reply-To: <200011192209.eAJM9Vq01712@spooky.eis.net.au>
References:  <3.0.6.32.20001119100352.00c41248@hobbiton.shire.net>

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Yeah, in fact I think it may have something to do with the chipset, since
it didn't do it when it was new, but it sometimes does it now.  I have been
overclocking this machine since day 1, and I have noticed a bit of a
degradation in its ability to be overclocked.  For a long time I ran the
Celeron 400s at 552 MHz, but now it isn't stable at 552, and I have to run
it at 480 MHz, where it is rock solid.  Why won't it run at 552 anymore?  I
believe it is actual degradation of either one or both of the CPUs, or else
the chipset.  I am going to pull the motherboard out, remove the heatsink
from the BX chip on the motherboard, and put some heatsink compound
underneath it, and mount a fan onto the heatsink.  I will then try going
back up to 552 MHz.

The motherboard is a year and a half old as it is, so I don't really care
if I risk frying it, since if I fry it I will just replace it with an 850
MHz or 900 MHz Athlon.  If I don't fry it I will hold onto it for another 6
or 8 months and replace it with a dual Athlon, which I assume will be
shipping by then.

Seth
At 08:09 AM 11/20/2000 +1000, you wrote:
>> Actually yes, I have had this problem with my BP6.  It isn't running
>> FreeBSD though, this machine is running just Win2K and Solaris 2.8.
>> 
>> What will happen is that sometimes, after shutting it down, is that when I
>> go to reboot it it will just do *nothing* after I power it on, no display
>> on the screen or anything.  When that happens (which isn't all the time) I
>> will just cycle the switch on the back of the case (the switch that
>> directly turns off the power supply), and then cycle it back on and hit the
>> On button on the front panel of my machine again.  When this problem occurs
>> it usually takes between 1 and 4 such cyclings to get it to boot up.
>> 
>> I thought I was the only one with this problem.  Oh well.
>> 
>> The nice thing is that I hardly ever shut this machine down.  It runs
>> either Win2K or Solaris 24/7, so the problem isn't too annoying.  Also, it
>> doesn't always fail to boot up when I have shut it down, perhaps it does it
>> a third of the time.
>> 
>> Other than that, I have had zero problems with my BP6 under those two OSes.
>>  I love it, it is a year and a half old and has been running 2 Celeron 400s
>> at either 552 MHz or 480 MHz ever since I built it.
>> 
>> Oh yeah, I water cooled the CPUs.  :-)
>> 
>> (www.2coolcomputer.com is where I got the water blocks to do this)
>> 
>> Seth Leigh
>> 
>
>Oh well it's good to see I am not the only one with the problem, looks like
>a design fault in the BP6, I noticed that the problem almost goes away if
>you only have a single CPU fitted. I wonder if that means the BX chip has
>cooked itself over time.
>
>- Ernie.
>
>



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