Run a Mobile P4 3.06GHz on a Desktop Mobo - Is it possible?

[idealcrash]

Sorry if this is a dumb question, but...

I may have a chance to get my hands on one of these, a Mobile P4 3.06GHz HT 533FSB 1.3v. Will this run on a desktop motherboard? The idea is to run it on a Gigabyte GA-8SQ800 (SIS655), would I have any problem with this mobo? Would it recognize the voltage and set itself to 1.3v? With my current P4 2.53GHz I can't go bellow 1.525v in the bios, but inside windows I'm allowed to go all the way down to 1.1v with Easy Tune 4, so this board does work with very low voltages.

Is this at all possible or should I just forget it?

[shathal]

Right a few things.

Firstly, there's no P4-M that I'm aware of that clocks at 3.06 GHz at the moment. Having received a 3 GHz "laptop" recently, this is - in fact - most likely a desktop CPU.

If you're in doubt, have a look at the reliable source:
http://support.intel.com/support/processors/index.htm

The fastest P4-M is currently 2.5 GHz (as per http://processorfinder.intel.com/script ... kgType=ALL).

So, from this side of things, we're talking a desktop CPU.

Secondly - can you shove a P4-M "just like that" into a desktop board? Not really.

There *ARE* however some boards out now, which WILL (!) accept P4-M's and I'd suspect that it's merely a question of time before someone decides to shove a Banias-capable motherboard out (a.k.a. "Centrino"). That would be very nice indeed, though I'd suspect that Intel would have regulations against that.

Mainly as a 1.6 GHz Banias has usually similar performance to a 3.0 / 3.2 GHz P4.

So, in order to answer your question, you have to get your facts right first . What you've seen is most likely a laptop advertised which happens to be "full height" (the only ones I know of have desktop CPU's). I'd generally advise against those for the following reasons (among many):

- High weight.
- PLENTY of heat coming out of those. Take it from one who knows.
- Battery life - what's that? .

Hope that helps a little . And no - it's not a dumb question .

[idealcrash]

Thanks for your input shathal, but did you take a look at the link I provided from the intel site? Here:

http://processorfinder.intel.com/script ... Spec=SL77P

That's the exact one I was talking about, based on sSpec number I got SL77P. It says it's 'mobile'. I'm also confused about this, it says the thermal spec is 100ºC. The thermal spec from the 'normal' 1.55v desktop version is only 69ºC? http://processorfinder.intel.com/script ... Spec=SL6PG Shouldn't it be the other way around?

EDIT: nevermind, I shoud be looking at the 'Thermal Guideline' instead of the 'Thermal Spec', and it is indeed lower in 'mobile' version.

[shathal]

Hmmm - interesting.

http://processorfinder.intel.com/script ... &SysBusSpd

lists the SL77P as a "normal" P4 - much as I'd surmised. I'd assume simply a typo/error on Intel's part. They happen to them too .

As I seem, you've figured out how to distinguish them . Format (one's FC-PGA-2, the other PPGA) is another good giveaway.

Hope this has helped .

[idealcrash]

Yeah, I noticed the 'FC-PGA2' thing. But both CPU's say 'PPGA'. It's the extra 'FC-PGA2' on the desktop version that I don't have a clue what it stands for or how much different makes it from the 'mobile' version.

[shathal]

It's essentiall the "form-factor", if you want.

One's Flip-chip pin-grid-array 2 (as opposed to FC-PGA, which P3 Socket 370 was), and PPGA I believe should be Plastic-Pin-Grid-Array, if I am not mistaken.

It's been a while since I've had to delve into these matters .

But that's it in essence. It's not overly interesting, as I could go on, but don't want to bore people to tears.

[idealcrash]

It's not overly interesting, as I could go on, but don't want to bore people to tears.

Yeah, you bored me to tears so much that I wandered off to ebay and started bidding on a 'normal' desktop 3.06GHz.