Whats the difference between PPGA and FC-PGA Packaging?

[Dangermouse33]

This is in regards to a CUSL2-C, which cannot handle PPGA Celeron (according to the ASUS site), so I'm wondering if it can handle a P3 since P3's are PPGA?

Heres the ASUS site that says that: ASUS Overview

Also, would PPGA FC-PGA1 and PPGA FC-PGA2 have different compatibilies for the CUSL2-C?

 

[AndyHui]

Pentium IIIs are FC-PGA or FC-PGA2 or Tualatin FC-PGA2. There are no PPGA Pentium IIIs. Only Celerons are PPGA.

The ASUS CUSL2 can handle FC-PGA and FC-PGA2, but not Tualatin FC-PGA2 without an adapter or modification to the socket.

 

[vss1980]

A PPGA celeron is a P2-based Celeron (ranging from about 300-533MHz). These are slightly electronically different to FC-PGA based Socket 370 chips such as the P3 or newer FC-PGA celeron chips (533MHz+).

Its all very confusing for some people, but to put it simply, if it looks like the 3rd chip on this page it isn't supported.

 

[MercenaryForHire]

To add to the above (IIRC)

PPGA = Processor Pin Grid Array
FC-PGA = Flip-Chip Pin Grid Array

The "Flip Chip" means that the physical structure of the chip is such that the high-heat portions of the core are "flipped" from conventional manufacturing and thusly are on the top of the package. This makes heat dissipation easier and more effective, allowing for higher thermal specs.

- M4H

 

[DaveSimmons]

CUSL2-C is a great board that can handle P3 up to 1 GHz and celeron 600 - 1.1 GHz. but for 1 - 1.1 GHz it can only handle the old, non-FCPGA2, non-tualatin, non-"A" versions that almost no one stocks any more. (Unless you buy a "socket-T" converter or modify the CPU.)

These old 800-1.1 celerons are also about 10% slower than a P3 at the same speed, so an old 1.0 is slower than a P3-933. And the 600-766 MHz celerons are even worse -- a 667 celeron was much slower than a p3 550 MHz in my old BX board.