How to tell the difference: 423 or 478?

[sharriso]

I'm a newb so bear with me... Is there a way to tell what socket a processor is by looking at it? I'm assuming that I could count the pins on the processor to figure it out... but not sure if there is an easier way to tell the difference. :confused:

[Baddog]

http://images.google.com/images?q=socket+a+pictures&hl=en&lr=&ie=UTF-8&oe=utf-8&sa=N&tab=wi :t

[bushmaster]

The socket 478 is way smaller than the socket 423 as the socket 423 is about the same size as socket 370 PIII's and celley's.

[Midknyte]

unless it's a really old P4, then it's gonna be socket 478. check the SSpec number on the chip, then go to this site:

http://processorfinder.intel.com/scripts/list.asp?ProcFam=483&CorSpd=ALL&SysBusSpd=ALL&PkgType=ALL

[$1500-P4 gamer]

Also if its a Northwood or over 2gig its a 478.;) But if its a lower mhz williamette you have to check it. As Willy came in BOTH 478 and 423 socket. First 478's were the same core cpu as 423 just a transition for the northy in future is all. Got the #'s on chip. Can check them for ya if you do.:t

[sharriso]

Can't see any numbers on the chip it is not in a machine at this time... I was given a box of parts to build a pc with. I want to make sure I get the right motherboard. I just need to be able to know by looking at the chip while its laying in my hand. I think I can tell by the pin arrayment. Looks like the 423 starts with 5 rows on one side, 6 rows on another side, and 7 rows on the last side, while the 478 has an equal 6 rows on each side. I'll take a look at it when I get home to see if I can tell.

[Midknyte]

um, you can see the sspec with the chip out of the system. it's printed right on the cpu. :p

if you already have it out, then you should know if it's 423 or 478. 423 is way bigger, almost the size of a socket370 chip. The 478 is a little bigger than a quarter.

Look at this site:

http://www20.tomshardware.com/motherboard/20010702/pentium4-05.html

[$1500-P4 gamer]

Its a p4 the #'s should be right on the cpu heat spreader. Look at it in good lighting. Its etched not in ink. SO its same color as heat spreader is. Just embedded etc.;)

[NDC]

Socket 423 is the old Intel P4 interface. The P4 Xeons use the same exact interface as the socket 423. Only difference is that they call Xeon socket 603/604. You can use Xeon heatsinks on P4 socket 423 and vice versa..

[Swordfish]

423's are bigger in size.
478's are smaller in size

423 were meant for the RD(older 850 chipset) platform and 478 are used with SD/DDR/RD(850E chipset).

Front: P4 in 423(bigger) and 478-pin(smaller) package.

http://65.68.55.12/inetpub/ftproot/p4_front.gif

Back: P4 in 423 and 478-pin package

http://65.68.55.12/inetpub/ftproot/p4_back.gif


http://65.68.55.12/inetpub/ftproot/p4_socket478_info.htm

[sharriso]

Thanks guys/gals. You were all most helpful in solving my dilemma. Thanks again for sharing the knowledge. :t