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cpu throttling?

post #1 of 12
1/10/04 at 6:41am
Thread Starter 
Hello,
I have heard elsewhere on this forum it is possible to throttle the cpu in order to get a little more battery life and help make the fans less noisy.

I was wondering if it is possible to do this on a sager model 4080. I have checked the bios i have on this laptop and cant seem to see any options to do this.

Is it possible that I am behind on bios updates? If so, does anyone know where I may get a new sager 4080 bios?

Thanks for any help you can provide!

holr
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post #2 of 12
1/10/04 at 2:30pm
Apparently the 4080/4780 bios is out, but not in a form that can be easily installed (needs to be on bootable floppy...we have no internal floppy drive, and im still dubious about flashing from the spoofed internal via USB thing. the feature im really waiting for is the ability to disable that damn boot beep, read around, somewhere in the 4xxx support string thres a discussion about this. also, your CPU throttles some when its on battery anyway, ive used CPU-Z to watch, and im 3.00ghz on AC, and 2.4ghz on battery.
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post #3 of 12
1/10/04 at 3:06pm
1. Burn the new bios file to a CD
2. In your bios, set to boot from CD 1st
3. Reboot, and your bios is flashed
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post #4 of 12
1/10/04 at 6:22pm
Thread Starter 
Hi PAPPP and bubbleman, thanks for the information.

Ive had a look on these forums and the only bios I can find is one that will swap the FN and CTRL keys, does this bios update have the function to manually throttle the cpu in it?

And also to PAPP - I have tried various benchmark programs and do see that the cpu is a little throttled when running on battery. Im using a program called "ZD CPU MARK 2002". I too have the 3.0gig cpu flavour, and do get a noticible different score when I run the benchmark. The thing is I would like to try to throttle it to real slow speeds, like a gig or less, so that it is just enough to watch a dvd or something and not have the fans blowing all the time!
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post #5 of 12
1/10/04 at 8:29pm
yeah, being able to throttle to a couple hundred mhz for simple tasks (movies, browsing, wardriving) would be convienent. i havent heard any murmurings of such a thing tho.
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post #6 of 12
1/10/04 at 10:31pm
there is a program out on the board somewhere that lets you throttle down to almost 20% oringinal speed, do a search, I forgot the name of the programmer (h something)
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post #7 of 12
1/11/04 at 4:05am
i dont believe it works on the 47XX series.
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post #8 of 12
1/16/04 at 2:22pm
Thread Starter 
thanks for your comments castlejp, I believe the programmer is Henrik and you can find him on these forums. Its a program for the 56xx series, I have tried it several times in different ways but to no avail.

Thanks to everyone for your comments!
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post #9 of 12
1/16/04 at 4:10pm
see this thread if you want the latest bios update
http://notebookforums.com/showthread.php?t=13299
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post #10 of 12
1/31/04 at 2:34am
Quote:
Originally Posted by Igg
see this thread if you want the latest bios update
http://notebookforums.com/showthread.php?t=13299
this lists bios as 4780.
will it work with 4080?
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post #11 of 12
2/4/04 at 5:08pm

back to the cpu throttling problem

hello...

ok. there is a tool called "speedswitchXP" you can use for changing clock-speed and so to save battery and make the fan less noisy.
but it does not work on 4780...

here is the link:
http://www.diefer.de/speedswitchxp/indexd.html

but what about "cpucool" ?
perhaps is it possible to do whis this tool.
the problem is, that you have to know the PLL of your system.

here is the link for the tool:
http://www.cpufsb.de/index.html


does anybody know the PLL of the 4780?

if so, please post, i wanna try...

thanks...
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post #12 of 12
2/4/04 at 7:43pm
I use CPU-Idle Extreme on my 4780 just fine... I don't know how much it works, but the fans arn't on as much since I started using it


CPUIdle
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