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Mobile Intel Celeron and Pentium III differences?

A

ArchStudent

Senior member
Other than speedstep, what is the main difference?

Will the Pentium III with speedstep work in a system that only supports 1.5-1.7V ?

Archstud?
 
The mobile P3 celeron started at 500mhz and had a 100mhz bus and 128k of cache, bit of a dog really. This eventually ended up with the Tualatin core which toped at 1.4ghz with 256k of cache and a 100mhz bus speed. This was faster than the Normal P3's which stopped at around 1ghz. I dont think I ever saw a laptop with the PIII-S cpu which had 512k of lvl2 cache / 133bus speed.

Asa side note the celerons upto 700mhz didnt have speedstep, nether did the original 500mhz P3.
 
Thanks for the info

What if someone wanted to upgrade their system from onen of the original PIII 500MHz that did not have speedstep to say a 700MHz or 800MHz PIII that has speedstep... would that pose a problem because the new chip has speedstep?

thanks
 
No as long as it physically possible to remove the chip, most early mobile chips were soldered directly to the motherboard.
 
groovy! My system uses the Molex 2 (I think that is what it is called) socket, and the cpu can easily come out. I just bought a Mobile PentiumIII Micro-PGA2 900MHz... will post feedback 🙂

Still not too worried about the heat... *fingers crossed* should be a very noticable upgrade from the current Celeron 450

I did some some tiny dip switches near the socket... I wonder what they do. I know that this is an Intel board... do you think I could find the specs for what the switches do, or ask Intel what the switches do?

🙂
 
COOL!!! I popped in a 800MHz micro-pga2 PIII and the notebook booted up!!! It reads as a PIII 666MHz in the BIOS and in Windows it reads as 650MHz using DXDIAG.EXE and a couple of other motherboard id programs 🙂

The notebook is faster... I still want to see how far I can push it... will experiment with the DIP switches near the cpu socket soon.
 
try disabling power management and then check with wcpuid. It could be that 650mhz is the speedstep operation
 
hmmm... funny I set the computer power scheme as always being on, but it still seems to only want to run at 650MHz.

Either I missed some setting in Windows XP, or I will have to use those dip switches eventually 🙂

Thanks for the help Mingon 🙂
 
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