Can I put a CuMine CPU in a machine designed for .25 only? Why not?

[Fun Guy]

I am interested in beefing up a machine with this motherboard - Soyo Dual CPU BX Board. Was thinking about 2 x Celeron 566Mhz -> 850Mhz.

As you can see, this board is made for 2.0v processors only, I am guessing because of older voltage regulator settings. However, I have slockets that are voltage adjustable, so instead of the 2.0v required for .25u chips, I can just set them up for the proper CuMine voltage of 1.5v to 1.7v.

Since multipliers are locked, and the FSB is my choice, can't I just throw in these .18u Celerons and (if they are overclockable) expect them to work? Why or why not?

 

[xtreme2k]

NO
the mobo prolly wont run any coppermine

i dont think the mobo will give out 1.6v to the chips... as the mobo also has to support 1.6v and then to give out that voltage
selecting 1.6v on the slocket means nothing to a mobo that doesnt support that voltage at all. 2.0v is prolly a bit too high for Coppermines

celeron FC-PGA cannot SMP in anyway

the homepage you gives even says
100MHz FSB Pentium III 450/550 MHz (Non Coppermine)

so they are pretty sure u cannot use coppermine on them

 

[Fun Guy]

As to your last point, I am already running two Celerons in the board right now, 2 x 300A's @ 504Mhz each (112Mhz bus). Now perhaps the newer Celerons are dual-processor diasbled, I don't know. That's why I am asking here. Does anyone know where I can find definitive info regarding dual Celeron operation?

I am guessing the board was designed and built before Coppermines came out, so there was no allowance either in the hardware design or the BIOS for delivering anything less than 2.0v. What I am saying is that the Slockets I have manually override this motherboard limitation, supplying the processors with exactly what I tell them to, don't they?

If it were the other way around (I needed 2.0v and the board was designed for only 1.6v) then I think I would have a problem with current draw - but I am asking for less. So why not?

 

[sleepdragon]

first, celeron 2 are smp disabled...
second, your board won't recongize those new celeron 2 even at single cpu situation...it won't supply 1.5v voltage it needed...

WHY NOT...SIMPLY BECAUSE YOUR MB WAS NOT DESIGNED TO RUN CELERON 2

 

[Jhhnn]

The voltage selection feature on slotkets doesn't actually regulate the voltage, it fools the mobo into supplying the selected voltage. if your mobo will only go as low as 2v, you're out of luck, like trying to get change for a penny.

There are bios support issues as well. many older boards simply will not run coppermines(celeron2's are a kind of coppermine) at all because of this. The link you furnished says "non-coppermine" in red, believe it.

I believe sleepdragon is correct when he says that celeron2's are smp disabled. Intel doesn't want anybody getting any cheap smp anymore.

Some of the more modern dual processor slot-1 BX boards support p3e coppermines on slotkets,I think. MSI markets the only dual processor socket370(p3e) board currently available.