What does the pin amount do?

[ScottieK]

What does the pin amount do. I see 184pin, 200pin and now 240pin on newegg. Does the pin level make a huge difference? What about ddr vs ddr2 ram. Thanks

 

[UnknownSouljer]

Well without getting into the technology aspect, the pins make the slots physically different from one another, so that ram types that have different pin amounts cannot fit in other slots.

Of course there is a major electronic difference, but this is just to make sure that someone doesn't try to plug in pc133 into a DDR board etc.

Yes there is a large difference between the 3 and you need the correct type to go with your motherboard.

 

[Herulach]

IIRC 184 Pin IS DDR for desktops, 200 pin are SO-Dimms, for laptops, and 240 PIn is DDR2, for newer P4s

 

[(cf)Eclipse]

184pins can also be rdram

 

[robberbaron]

184pins can also be rdram

Yep, but its keyed differently, so don't try to put RDRAM in a modern motherboard.

The best are 72pin EDO simms, though.

 

[(cf)Eclipse]

The best are 72pin EDO simms, though.

agreed. gotta love that blazing fast ram rated for 60ns