Pentium compatibility between II and III?

[LummusMaximus]

Okay, so here's my trouble:

One of my neighbours was discarding some old desktops. I naturally decided it's time to make like Dr. Frankenstein and create a monster. My actual question is:

Would a pentium II and a pentium III use the same slot on the motherboard? Meaning, if one system has the best motherboard, would i be able to slot in either processor?

Thanks in advance

 

[Deus Gladiorum]

In some cases yes, in others no. It depends on the exact model of the Pentium CPU.

 

[allocco91]

It depends what Pentium III. Pentium II uses a Slot 1 socket, which Pentium III uses Slot 1 and Socket 370.

 

[LummusMaximus]

Well, as far as I can tell, it's just pentium III. On it, there's some serial numbers:

On the fan, there's a holographic Intel logo, and below it is:
10925A
109x1512H2096

On the other side, Pentium is written as 'Pentium !!!'

I haven't had a chance to disassemble and look at the Pentium II yet. However, on the box, is claims it's 'Y2k compliant', which amused me.

Sorry if this isn't helpful, I'm not very knowledgable in Pentiums.

 

[Deus Gladiorum]

Just as there's no such thing as "just i5", there's no such thing as "just Pentium III". There's various models of every series. The i5 has had various models for each of its microarchitectures. For example, right now the Intel Core i5 is in its 4th generation and is being produced according to the "Haswell" microarchitecture. Within this there's the i5-4430, i5-4670, i5-4670k, i5-4440, i5-4570, etc. All of these are cross-compatible and use the LGA 1150 socket (in other words, they all fit in the same motherboard), but let's go one iteration before.

The Ivy Bridge microarchitecture was used in the 3rd generation of i3, i5, and i7 CPUs. So for example, here there's the i5-3570k, the i5-3330, i5-3470, etc. All of these use the LGA 1155 socket which is distinct from the LGA 1150 socket that Haswell uses. Hence, the 4th generation and 3rd generation Intel Core i5's are not compatible with one another.

Similarly, the Pentium II series mostly used Socket Slot 1 while some of the Pentium III series used Socket Slot 1, others used Socket 370, and others used both. There are various Pentium III's from the Pentium III 450 up until the Pentium III 1400. It would be best to figure out which model it is. If you can't boot up the PC and find a System Information page to find out which Pentium III it is, then try to match them according to names or serial numbers you find on the physical CPU and on this Wikipedia listing:
http://en.wikipedia.org/wiki/List_of_Intel_Pentium_III_microprocessors

 

[LummusMaximus]

I could post some pictures if that would help. But I'm not sure where I'd post them to.

Thanks for the info. Very informative.

If it makes a difference, the system is from 1998.

 

[Deus Gladiorum]

That seems a bit unlikely since the Pentium III first came out in 1999. You could post pics to imgur and then provide links here (you can post the actual image here by putting the link in between the "img" brackets like so, just don't use spaces:
[ img]http://imgur.com/xxxxxxxxxxxx[/img ]) but I don't know how helpful it'd be. See if on the socket itself you can find a model, or perhaps the name of the motherboard itself.