Incorrect clock speed showing up?

[pjyelton]

Just installed a Sempron 2800+ which is said to run around 2.0 Ghz but clicking on My Computer properties as well as several test functions like dxdiag all show the clock speed at 1.61 Ghz. Are they just wrong and if so how do I figure out what the true speed is? And if my chip is running at only 1.6 why isn't it running at full speed? This is the first time I've ever installed a chip.

 

[Sonic587]

Check your motherboard BIOS. You may have to manually set the CPU multiplier/FSB.

I believe the correct setting for your processor is 12 on the multiplier and 166 on the FSB.

 

[pjyelton]

Ok, I checked the values and the multiplier is 12 and FSB is only at 133. How do I change the FSB? I've gone into the BIOS menu and I don't see anywhere to change it. Is it possible I can't do this through the menu and if so how else could I do it?

 

[imported_whatever]

what motherboard are you using? it is most likely running at 133*12, there is a setting somewhere in the BIOS to use fsb of 166 (sometimes also called 333)

 

[pjyelton]

I can't seem to figure out what the manufacturer is because every program I run just leaves it blank, but the model is KM266-8233. I've looked and relooked in every menu for my BIOS (Phoenix Award Bios) and nothing anywhere lets me change the FSB. In fact, it won't let me change anything but trivial items. For example if I go into voltage settings the only thing that shows up is Speed Spectrum which is funny because I could have sworn that 6 months ago (the last time I opened the BIOS menu) I could change things like the voltages.

Also, the jumpers on the motherboard only say 100 and 133.

 

[BigBadBiologist]

yeah, your mobo doesn't support 166FSB if it's a KM266 chipset.

/edit: If you want to know which mobo you have, open the case and look at the mobo. It's normally silkscreened on there in big letters. Sandra typically won't tell you who made your mobo.

 

[pjyelton]

So the only way up to 166 is a new mobo? Drat.

Its an eMachine.

 

[BigBadBiologist]

yeah. no soup for you!

 

[newParadigm]

yup new mobo get a Biostar M7NCG-400

 

[gwag]

or return it, get an old 2600+ that runs at 2.133

 

[newParadigm]

Yeah, you could also get a mobile CPU, they have unlocked Multi's so you can set it to waht ever speed u want