Is it possible to use a s478 P3 Mobile 1.2GHz chip in a desktop mobo?

[DotheDamnTHing]

?

 

[DotheDamnTHing]

Intels site lists it as :
SL5CL 1.20 GHz 133 MHz 0.13 micron FPA1 512 KB 478 pin PPGA

so is it possible to use it in a 478 mobo?

 

[imported_itr]

socket 478 is for p4 CPUs. i don't believe that will work.

 

[DotheDamnTHing]

?

 

[Philippine Mango]

What kind of friggen P3 is 478 pins?? P3s are 370pins and FYI it aint goanna happen period, even in a P3 board...

 

[GoSharks]

ive never heard of a 478pin p3...

 

[Melchior]

Probably a mobile one, like he said in the title.

 

[bluestrobe]

It?s almost the same socket as a P4 except one pin so no it won't work in socket 478 boards. I have seen some specialty motherboards using in SSF systems that could use the mobile P3 but I can't find them on the net at the moment. To the noob's there is a big difference between the mobile and Socket 370 P3. The Mobile P3 looks like a P4 without the heat spreader.

 

[ribbon13]

http://store.yahoo.com/impactcomputersmiami/sl64y.html

 

[DotheDamnTHing]

you got it ribbon13...i just wanted to know if you could use a desktop mobo (p4) with a BIOS update of some sort that could use the P3 Mobile chips?

 

[DotheDamnTHing]

Originally posted by: Philippine Mango
What kind of friggen P3 is 478 pins?? P3s are 370pins and FYI it aint goanna happen period, even in a P3 board...

lol what a noobular

 

[bluestrobe]

Originally posted by: DotheDamnTHing

Originally posted by: Philippine Mango
What kind of friggen P3 is 478 pins?? P3s are 370pins and FYI it aint goanna happen period, even in a P3 board...

lol what a noobular

My thoughts exactly. Probably asking about 550mhz Cirix P4's for his socket 7 motherboard in another thread.

 

[VirtualLarry]

Originally posted by: DotheDamnTHing
Intels site lists it as :
SL5CL 1.20 GHz 133 MHz 0.13 micron FPA1 512 KB 478 pin PPGA

so is it possible to use it in a 478 mobo?

???

Even if that really was a S478 P3 CPU... don't the P4's use an mPGA (micro-PGA) S478? So why does that chart list PPGA? In fact, even the Tualatim P3 desktop chips, are FCPGA or FCPGA2. What the heck is that thing? I think we need pictures of it. (found some) Hmm. It is a S478 PPGA P3 chip. Learn something new every day.

Edit 2: Thank tcsenter, that makes the most sense - that the CPU in question is a Pentium-M. I hadn't considered that. I was wondering what all those extra pins on a "classic" P3 CPU would have been used for.. it's not like the Tualatin chips needed extra power/ground pins, they were already remarkable low-power as it is. I still don't think that the S478 PPGA package in the picture that I linked to, looks like an mPGA to me - that looks like a standard PPGA, just with some more pins.

 

[DotheDamnTHing]

like i said its a Mobile chip something like this...look at the description and intel link

 

[bluestrobe]

http://www.wagnersafety.com/other/celeron.JPG

That is the one I had still with the thermal tape on it. The bottom pin layout was identicle to the P4 478 ZIF socket with the exception of one pin that is in a different location.

 

[imported_whatever]

Originally posted by: GOSHARKS
ive never heard of a 478pin p3...

In fact there are 517 pin P3/Ms too. The 133FSB ones are 478, the 100FSB ones are 517 (not positive that it is the exact pin count, could be off by a few either way)

 

[tcsenter]

Originally posted by: Philippine Mango
What kind of friggen P3 is 478 pins?? P3s are 370pins and FYI it aint goanna happen period, even in a P3 board...

Intel Mobile Pentium III Processor - M (note the "M") based on .13µ process technology and Intel Mobile Celeron are available with 478-pins and in fact are physically pin-compatible with mPGA-478 sockets used for Desktop Pentium 4 processors. This is what Intel has to say:

The new Intel® Pentium® 4 processor uses a 478-pin package while the mobile Pentium III processor in the FC-PGA package uses a 478-pin package. While physically, you can insert a Pentium 4 processor into a mobile Pentium III processor-M notebook or a mobile Intel Celeron® processor notebook and you can insert a mobile Pentium III processor-M or a mobile Intel Celeron processor based on .13 micron process technology into a desktop Pentium 4 processor system, the two type of processors are not electrically compatible and it will damage the processors and/or the system if you do. In addition, this can void your warranty for your notebook and processor.

I purchased a PC Chips motherboard with Intel 845GV chipset for $20 that supports 400MHz & 533MHz mPGA-478 Intel P4 and Celeron processors. With PIII-M processors going for as little as $30, I may pick one up and give it a try. If it kills the motherboard or CPU, no big loss.

In fact there are 517 pin P3/Ms too. The 133FSB ones are 478, the 100FSB ones are 517 (not positive that it is the exact pin count, could be off by a few either way)

495 pin PPGA, and it is available in both 100MHz and 133MHz FSB. e.g. sSpec Number SL3TQ 650MHz

 

[DotheDamnTHing]

you probably need a mobo that has a VRM on it

 

[MercenaryForHire]

Wow, look at all the no0bs in here.

tcsenter, save yourself the trouble and the board. Check the pinouts if you need confirmation, but it's gonna go boom.

- M4H

 

[Rock Hydra]

Hmm...never knew about the crazy pinouts of those P3s. Ha ha ha, silly Intel.