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Article #29

Re: Motherboard voltages.... Are these readings within normal tolerances

#29
From: Ben Pope
Date: Thu, 09 Oct 2003 10:43
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Dave wrote:
>
> The serial port uses the +12V and -12V lines for data transmission from
> the port (and can receive down to +/-5V).

Many serial drivers only require a positive supply of say 5V, they use
onboard charge chumps and dc-dc convertors to get �12V.  I'm not sure whats
used on modern PCs it's not a MAX232 style chip, but they can do that.

Ben
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From: "Ben Pope" <spam@hotmail.com>
Newsgroups: alt.comp.hardware.overclocking.amd,aus.computers
Subject: Re: Motherboard voltages....  Are these readings within normal tolerances
Date: Thu, 9 Oct 2003 11:43:50 +0100
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