Intel find socket of chip
 

I have a couple of Intel PROCESSOR and I do not know what chip set they are?
THESE WERE PULLED FROM WORKING COMPUTERS AND GIVEN TO ME. I'M GOING TO BUILD A FIRST COMPUTER FOR MY DAUGHTER, JUST FOR HOMEWORK.
One has
PENTIUM 4 1.8GHZ/256/400/1.75
SL5VJ COSTA RICA 3214A157-1417 INTEL M C'01
THE M C ARE IN A CIRCLE ///
I WANT TO BUY A MOTHERBOARD FOR ONE OF THEM BUT IS IT 423 PIN OR 478 PIN?
The other one is the same pinset just has 1.60 /256/400/1.75
SL5VH COSTA RICA
3209A048-00207

CAN ANYONE TELL ME HOW TO TELL THE PIN SET?
THANK YOU ALL FOR YOUR HELP. TFP IS GREAT!
BAFFLED WAYNE21
THANKS AGAIN

Can you measure the processor length and width and post it here in inches?

BTW it's gonna be really expensive to build a computer with CPUs that old. You will spend a fortune finding ram and a motherboard, etc. to make that work unless you have it laying around already.

The chip size is 1 3/8" or 35mm. I have a lot of ram 168 pin around so i would just need a motherboard.
Thanks again.
Wayne21

http://www.jasonwaltman.com/images/compsci/p4-5.jpg

left is 423, right is 478

thank you Dilbert and Lasereth it is the 478 chip set. Thanks again!
Wayne21

Yep those measurements check out perfectly. Good luck!!