CPU ratio/multiplier

  glen2409 19:48 18 Feb 2006


I hope you can help.

I have a Gigabyte GA-K8NS mobo. In the BIOS the CPU frequency is set at 200 and the multiplier at auto. This runs between 5 and 10, so 1000mhz to 2000mh. The cpu is a AMD64 3000+. Should I leave the multiplier at auto or set to 10 to get the maximum all the time?

I assume the system automatically ups the multiplier as more stress is placed on the cpu. The cpu temp runs at 27-35c. I have been thinking of overclocking too, by upping the cpu frequency to 210.


  Rayuk 19:54 18 Feb 2006

I think you will find that it is only laptops that throttle the cpu to save on battery life desktops will work at the fully rated speed all the time.

  glen2409 19:59 18 Feb 2006

When I check the cpu speed with Everest it runs at anywhere between 1000mhz and 2000mhz

  gudgulf 22:46 18 Feb 2006

I think you'll find that the AMD 64 cpu's have a feature called "cool and quiet" which does the same trick as a laptop......it throttles back the cpu when demand is low to keep noise and power conssumption low.

If you are wanting to overclock the system you will need to disable this feature in the BIOS......ie you will need to set a manual multiplier rather than use Auto.

If you like I have an excellent write up on AMD overclocking posted by a member on the Custom Pc forums which I can send to you by the yellow envelope.

  glen2409 22:47 18 Feb 2006

I have overcloked by 5% at mo, so goes to 2.1ghz when fully used, didnt need to disable cool n quiet

  gudgulf 23:39 18 Feb 2006

That's ok.......If your mobo supports an automatic overclock then that's sorted.

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