Re: [Thinkpad] Hot A31p power supply

A31P should be under warranty. Call IBM and they will overnite you a new
one.
----- Original Message -----
From: "STeve Andre'" <andres@msu.edu>
To: <thinkpad@stderr.org>
Cc: "Peter James Halford" <phalf@iidc.net>; <thinkpad@stderr.org>
Sent: Tuesday, August 31, 2004 10:56 AM
Subject: Re: [Thinkpad] Hot A31p power supply

> If the adaptor is litterally too hot to hold in your hand, something
> is wrong. You might want to watch the voltage level--if it drops
> much below 15.9V I would consider it suspect. Although rare I
> have seen them act strangely at times. The good news is that
> you ought to be able to get another one for not much on Ebay.
>
> --STeve Andre'
>
> On Tuesday 31 August 2004 18:36, Peter James Halford wrote:
> > Hi folks, I love to follow this list.
> >
> > After living six months with a SONY VAIO I finally managed
> > to find a brand-new A31p on eBay (I couldn't resist after
> > all the good stuff I read about it on this list). I was
> > very lucky and the seller wasn't really too sure about what
> > he was selling and I ended up with a very good spec.
> > machine (768MB RAM, 80GB HDD, multi-burner etc...) for a
> > very good price.
> >
> > Anyhow, the machine is perfect, but the power adapter seems
> > to get really hot (the TP runs as cool as a whistle). I
> > have had TP's all the way from a 700 up to my last machine,
> > an A20p and I have never experienced an adapter that ran so
> > hot -- so hot you can't hold it in your hand for more than
> > a few seconds. Unfortunately, my old A20p is overseas with
> > my daughter (who laid claim to it when I decided a P3-750
> > just wouldn't hack it any longer), so I can't try that
> > adapter out as a reference.
> >
> > I measured the DC power consumption whilst on-line and
> > showing a DVD movie (I was trying to tax the CPU a little).
> > The average consumption was 2.5Ah @ 16V, peaking at 3.3Ah
> > very occasionally (the battery was charging too). Hardly
> > over the top for a 72W adapter wouldn't you think? Just
> > from a design perspective, the last thing you want with a
> > switcher is a very high ambient temperature -- the
> > capacitors on the input and output of the regulator derate
> > very rapidly under elevated temperatures...
> >
> > Any words of wisdom would be much appreciated.
> >
> > Thanks to all!
> > Peter
> >
> > PS. I bought the VAIO at a great price, it had a fantastic
> > 16" screen, but typing on it was like bashing on a metal
> > xylophone -- I have never regretted buying a machine more.
> > That's what you get when you don't purchase a TP. I shall
> > never make that mistake again...
> >
> >
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Received on Tue Aug 31 15:00:42 2004