Manually Control SpeedStep on 850Mhz Machine

[ClockerXP]

Hello-

My 850Mhz Compaq M700 has Speedstep. When unplugged, the CPU will run at 700Mhz to save power. I would like to run at the lower 700mhz speed even when the laptop is plugged in to reduce heat generation. Is this possible? I'm running WinXP.

Thanks,
CxP

 

[IlllI]

is there really much of a difference in heat going from 850 to 700?

 

[ClockerXP]

Just looking to get all the reduction that I can...

CxP

 

[PoisonCandyGram]

You should be able to set it to "max battery" or some setting like that in the bios. However, I do not think the heat/performance ratio would be worth underclocking your processor. Check the bios. In order to access it if you don't know how, you usually hold a key like f2 during startup. It should say hold "F_" to enter setup before windows xp starts loading. Enter setup and play around it should be under a cattegory such as performance or battery consumption.

 

[ClockerXP]

Thanks for your feedback. My only options in the bios are to enable or disable the Intel Speedstep technology. Any other ideas?

CxP

 

[HN]

http://www.diefer.de/speedswitchxp/

 

[ClockerXP]

No dice. I think that program only works with the newer processors out, not my P3 based 850mhz machine. It doesn't even recognize the clock speed correctly...

 

[trungthiendo]

underclocking won't reduce much power, unless u reduce the voltage that the cpu is getting...that being said the best thing to do is set it to max battery life

 

[sparkyclarky]

Originally posted by: ClockerXP
No dice. I think that program only works with the newer processors out, not my P3 based 850mhz machine. It doesn't even recognize the clock speed correctly...

I believe that I used it just fine with my 866 P3 based speedstep machine, but that chip might be one gen ahead of yours (it has 512k of on die L2 cache and a 133 bus).