quick question in light of the SMP thread i just read....

zanejohnson

Diamond Member
Nov 29, 2002
7,054
17
81
are the regular P4's SMP-able???

i have a 2.4b right now in an Epox 4PEA+ mobo....and i was thinking about in the future getting an SMP board and buying another 2.4b and throwing them both in there...

Thank You
 

Budman

Lifer
Oct 9, 1999
10,980
0
0
Originally posted by: zanejohnson
are the regular P4's SMP-able???

i have a 2.4b right now in an Epox 4PEA+ mobo....and i was thinking about in the future getting an SMP board and buying another 2.4b and throwing them both in there...

Thank You

Nope they are not,you need Xeon cpus for dual.
 

techfuzz

Diamond Member
Feb 11, 2001
3,107
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I wish the P4's were SMP capable, unfortunately they're not. Intel decided that after the success of the P3 line being used in multi processor systems and the demise of their Xeon lineup at the time that for the P4 lineup they would restrict SMP to the Xeon's only and disable that functionality on the P4.

Because the P3's were so popular, most OEM's like Dell, Gateway, etc. still sell P3 multiprocessor servers. They're just being phased out since the EOL on the P3 is very soon. RIP P3, you were quite the chip!

techfuzz
 

Confused

Elite Member
Nov 13, 2000
14,166
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Originally posted by: techfuzz
I wish the P4's were SMP capable, unfortunately they're not. Intel decided that after the success of the P3 line being used in multi processor systems and the demise of their Xeon lineup at the time that for the P4 lineup they would restrict SMP to the Xeon's only and disable that functionality on the P4.

Because the P3's were so popular, most OEM's like Dell, Gateway, etc. still sell P3 multiprocessor servers. They're just being phased out since the EOL on the P3 is very soon. RIP P3, you were quite the chip!

techfuzz

IIRC, it was in fact the PPGA Celeron's (<533MHz), combined with a board like the Abit BP6, which killed Intel with regards to SMP. At the time, you had the option of a pair of Celeron 366's o/ced to 550, plus a BP6, for about the same price as a single Slot 1 Xeon 400 (or something like that). After the PPGA Celerons, Intel removed SMP capability from all P3's and Celerons, apart from the special PIII-S processors, after their Xeon processors weren't selling well enough.

With the P4, i guess they wanted to keep the SMP to their special, more expensive CPUs, and not have a "desktop" SMP compatible CPU in the P4, for risk of what happened with the Celeron/BP6!


Of course, most of this happened before I really got into computers big time, so thats just what i've picked up off the net and here, so facts/figures may be a little off ;)

Confused