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Mobile Pentium III Tualatin installation


satdude
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Hi, I was wondering if the installation of a mobile Pentium III 1333 MHz would be possible in an og Xbox. This would be a lot easier, since you wouldn't have to use an interposer and modify the heatsink. Has anyone tried this set?

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There were late mobile Tualatins released in the mPGA479M package.

https://en.wikipedia.org/wiki/Socket_479

 

Those however would still require an interposer - the OGXbox CPU was designed with BGA495/Socket 495 in mind, a socket mostly present during the Coppermine era on 440BX based laptops - Compaq's Armada E500 and M700 come to mind with this socket.

Edited by CryogeniumFocus
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6 hours ago, trencherfield said:

The fastest non interposer BGA495 Pentium III CPU is 1Ghz.

https://en.wikipedia.org/wiki/Socket_495

They usually need flowing off a slot 1 cpu card or a pinned interposer 495.

The 1333 Mhz P3 is the larger socket 370 chip and requires the same interposer as for all Tualatins.

https://www.techpowerup.com/cpu-specs/pentium-iii-1333.c1278

I believe that is the processor that Trusty used in his 1Ghz boards.

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2 hours ago, CryogeniumFocus said:

It would be interesting to see a mPGA479M to 495 adapter w/ one of those mobile Tualatin P3s. Their footprint is only a bit bigger than the original BGA495 CPUs.

I need to figure out what bare minimum BGA tools look like (not the reflower) and finally use the 10 interposers I have just sitting and waiting.

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