| Author |
Message |
Fred
Guest
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 Posted:
Sun Oct 30, 2005 4:53 pm Post subject:
How to force battery mode power scheme on an Athlon XPM? |
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Hi,
I'm using an Athlon based Fujitsu Siemens laptop and while I'm pretty
happy with it, I'd like to run it as if it was on battery even when
plugged on AC (for quietness reasons and because of the heat generated).
Is there a way to enforce battery mode even on AC? I tried a couple of
underclocking tools with no luck so far. I guess there must be a
registry key or something to trick the power management module...
TIA
Cheers, |
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bxf
Guest
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| Posted:
Mon Oct 31, 2005 11:50 pm Post subject:
Re: How to force battery mode power scheme on an Athlon XPM? |
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What do you actually mean by "as if it was on battery"? If you mean
running at less-than-full-power, you can probably accomplish that by
selecting the appropriate Power Scheme from Control Panel > Power
Settings. Although this is somewhat machine dependent, you may be able
to achieve what you want. Try the Portable/Laptop (or somesuch name) or
perhaps Maximum Battery scheme. |
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Fred
Guest
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| Posted:
Tue Nov 01, 2005 5:07 am Post subject:
Re: How to force battery mode power scheme on an Athlon XPM? |
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bxf wrote:
| Quote: | What do you actually mean by "as if it was on battery"? If you mean
running at less-than-full-power, you can probably accomplish that by
|
Yes, something like that.
| Quote: | selecting the appropriate Power Scheme from Control Panel > Power
Settings. Although this is somewhat machine dependent, you may be able
to achieve what you want. Try the Portable/Laptop (or somesuch name) or
perhaps Maximum Battery scheme.
I did with no effect on fan operations so far... Thanks anyway for your |
answer. |
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Quaoar
Guest
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| Posted:
Tue Nov 01, 2005 8:26 am Post subject:
Re: How to force battery mode power scheme on an Athlon XPM? |
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Fred wrote:
| Quote: | bxf wrote:
What do you actually mean by "as if it was on battery"? If you mean
running at less-than-full-power, you can probably accomplish that by
Yes, something like that.
selecting the appropriate Power Scheme from Control Panel > Power
Settings. Although this is somewhat machine dependent, you may be
able to achieve what you want. Try the Portable/Laptop (or somesuch
name) or perhaps Maximum Battery scheme.
I did with no effect on fan operations so far... Thanks anyway for
your answer.
|
Some power managers have a "quiet mode", "cpu throttled mode", etc that
do the same as battery mode. OTOH the AMD chips alway run throttled
unless there is CPU demand. What does the AMD dashboard show about the
CPU speed? |
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Fred
Guest
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| Posted:
Tue Nov 01, 2005 2:54 pm Post subject:
Re: How to force battery mode power scheme on an Athlon XPM? |
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Quaoar wrote:
| Quote: | Some power managers have a "quiet mode", "cpu throttled mode", etc that
do the same as battery mode. OTOH the AMD chips alway run throttled
unless there is CPU demand. What does the AMD dashboard show about the
CPU speed?
|
There is no such thing on W2K power management module, only the AMD
PowerNow! which offers AC or battery modes. Battery mode is fine as the
laptop is quiet 99% of the time while on AC, the fan kicks in every
couple of *seconds* |
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Quaoar
Guest
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| Posted:
Tue Nov 01, 2005 8:40 pm Post subject:
Re: How to force battery mode power scheme on an Athlon XPM? |
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Fred wrote:
| Quote: | Quaoar wrote:
Some power managers have a "quiet mode", "cpu throttled mode", etc
that do the same as battery mode. OTOH the AMD chips alway run
throttled unless there is CPU demand. What does the AMD dashboard
show about the CPU speed?
There is no such thing on W2K power management module, only the AMD
PowerNow! which offers AC or battery modes. Battery mode is fine as
the laptop is quiet 99% of the time while on AC, the fan kicks in
every couple of *seconds*
|
1. Check BIOS setup and see if there is anything you can set to force
the battery mode performance you want. The fan noise might be more
tolerable if the CPU is not set to throttle at all on AC so the fan
noise is constant (if loud).
2. Check the dashboard and see if the fan cycle is actually related to
the CPU frequency cycle. One would think the two are related, but it
might be another incremental cooling load - video, etc.
3. See what the AMD support forums offer for this problem. Please
mention that the OS is Win2k - it might be important.
http://forums.amd.com/index.php?showforum=40
Q |
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Fred
Guest
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| Posted:
Wed Nov 02, 2005 5:24 am Post subject:
Re: How to force battery mode power scheme on an Athlon XPM? |
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Quaoar wrote:
Thanks for your advices. I'll follow up on the AMD forum.
Regards, |
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