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WinXP laptop temp question



 
 
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Old August 17th 18, 12:26 AM posted to microsoft.public.windowsxp.general
Paul[_32_]
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Default WinXP laptop temp question

Bill in Co wrote:
I've got one other question on this (somewhat hot) laptop issue, which I'm
still trying to investigate. If one turns off all extraneous devices in
BIOS, does that in any way impact the total power consumption (and thus
heat) at the hardware level? I'm just wondering if disabling all the
devices not being used in BIOS (and perhaps windows), such as Bluetooth,
Serial and Parallel Ports, PC card ports, docking tray, etc, will literally
(at the hardware level) turn OFF some IC chips, and thus reduce the overall
temps and power consumption.


In theory, it should disable the chip select,
rather than gate off power to the chip. You would
have to inspect individual chip datasheets to see
what leverage is available in them. Some of the
chips will have their own handler module in the
BIOS code.

And it's easy enough to check.

Remove the battery.

Connect the power adapter to a Kill-A-Watt meter (P4400).

http://www.p3international.com/products/p4400.html

Now, under quiescent conditions, turn off the items
in question, run the OS, and see if there is any
measurable difference to the total laptop power.

And the WinXP OS is ideal for this - Windows 10 would
swamp out any attempt to do experiments, by driving
the power consumption all over the place. When you plug
in the network cable on my laptop with Win10 running,
the power about doubles. It has a picnic for itself.

The CPU, GPU, chipset, DIMMs should draw the
most power. A little Firewire controller chip
might be a watt when it's busy, or less than that
when not doing anything. Ethernet is about a watt.
No idea on Wifi.

Really old PCs (year 2000) run at almost
constant power. There's hardly any savings
on those. Newer machines have a larger power swing
between quiet and busy.

Paul
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