What is a 939 AMD ?

I assume it is the pins the processor has? What is the difference between that and other? I noticed they cost a little more.

Thanks.

 

You hit the nail on the head. 939 is the number of pins on the processor. Your other options are 940-pin and 754-pin if you're going AMD64. There are several differences. I believe 940-pin was first, so we start there. 940 was the original pin count for AMD's 64-bit processors. It was very fast, but the 940 requires ECC-compliant (AKA registered) memory. This kind of memory is extremely expensive, and people bitched. So then AMD switched over to the 939 pin setup. 939 pins do not use expensive registered memory, and were pretty even with the 940 breed. Then AMD started putting out cheaper processors, with 754 pins. These processors also use non-registered memory, but they are usually not as fast as the 939 or 940 pin processors.

 

Non-ECC memory is also faster; ECC mem is really only for server type applications.

 

Interesting. I always thought that AMD came out with 754 pins as mainstream (way back when) and then the FX-53(?) for 940.


Then later, 939s came out as being upper end at first. Now it is mainstream, with the FX processors using the same socket. Though, the new dualcore(x2) also uses the 939 pin socket (as of right now).

Later on, there will be a socket 1207 with DDR3 memory (who knows when this really will come out). Code named M2.

Socket 754 will eventually be phased out, just like socket A is basically dead.

I recommend sticking with socket 939 right now.....

 

WeHell, man, your probably right, but I herd of 940 first, so......
AND HELL NO! I'll never let my beautiful Socket A go! We shall live forever!
MWAHAHAHAHAHAHA

 

I have a barton 3200+, eventually, probably every other month from now, I'll be buying 1 gigabyte ddr 400 memory. I'll get 4 of them. Why?

Well, I want to see if running without a pagefile is like.

4 gigs of ram should do me well.

 

You can pull that off with 2gb easily http://forums.majorgeeks.com/images/smilies/tongue.gif.

 

Only reason I say 4 gigs...is this:

You rarely see anyone say they have 4x1024 ddr 400 memory .....

 

Because its not needed obviously http://forums.majorgeeks.com/images/smilies/biggrin.gif

 

You rarely see people say they have 40 keyboards.lol
Alot of programs auto use it for caching no matter how much ram you have,they would just crash or run extremely slow.

 

Just found this thread http://www.xtremesystems.org/forums/showthread.php?p=928071#post928071

Might give you insite on why ppl dont use that much ram, wxp 32bit uses a max of 2GB per thread, wxp Pro can use 3gb with bootini modification. Also you need a mobo that supports 4GB dimms and a core like an a64.

 

The first one I googled

http://aumha.org/win5/a/xpvm.php

 

sorry rikky meant to quote theefool.