Re: [Thinkpad] Hot A31p power supply

IS IT the 72 Watt PS?

Check the specs on the label.
The newer supplies have a little "ring" near the yellow tip, makes them easy
to ID
Do you get any screen flicker when it is plugged in? That would be a sign of
using the lower powered adaptor. It will work, but it is a bit light to
power a P4
----- Original Message -----
From: "Peter James Halford" <phalf@iidc.net>
To: <thinkpad@stderr.org>
Sent: Tuesday, August 31, 2004 2:36 PM
Subject: [Thinkpad] Hot A31p power supply

> 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 14:51:42 2004