Will a mobile p4 (not P-M or P4-M) work on a socket 478 motherboard?

[KoolAidKid]

I'm wondering if a mobile pentium 4 (SL726) can work in a standard desktop motherboard. Note that this is a Mobile Pentium 4 CPU, not a Pentium M or a Mobile Pentium 4 - M CPU. 478 pins, 1.3V, 533 FSB. Any info is much appreciated.

 

[BlingBlingArsch]

no.

 

[Mloot]

Originally posted by: BlingBlingArsch
no.

Well, now, Mobile P4-based Celerons seem to work just fine on a number of socket 478 mobos, so I can't imagine why a Mobile P4 wouldn't do the same.

 

[KoolAidKid]

Originally posted by: BlingBlingArsch
no.

Elaborate, please. Why won't it work? P4-M's work, as do mobile celerons based on the Northwood core. Why not the mobile version of the northwood?

I'm not doubting you, I just want concrete information. Thanks!

 

[Maximilian]

Isnt it just a P4 with a lower voltage? So it was labelled P4-M and used as a mobile chip? If thats true it should work fine on desktop mobos.

 

[ssvegeta1010]

I have previously heard that Mobile P4s will work, but they will downclock to SpeedStep low speed (on the multiplier level) and not be recognized correctly by your board.

Not 100% sure, but I think Ive heard it before.

It would make sense, as then the Celerons would work, because they dont use SpeedStep.

 

[Zap]

No, no, the Speedstep stuff will just cause the mobile P4 to run at 12x multiplier all the time. It will still run.

 

[aidanjm]

Originally posted by: KoolAidKid
I'm wondering if a mobile pentium 4 (SL726) can work in a standard desktop motherboard. Note that this is a Mobile Pentium 4 CPU, not a Pentium M or a Mobile Pentium 4 - M CPU. 478 pins, 1.3V, 533 FSB. Any info is much appreciated.

they work in some motherboards, not in others. my mobile pentium 4 is running happily inside an ASUS Pundit (which contains a socket 478 motherboard with SiS chipset). There's a great thread here on using mobile celerons in desktop boards, I assume any board that runs a mobile celeron will also take a mobile pentium 4.