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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: on February 16, 2003, 11:03:48 PM

Title: Question of the day...
Post by: on February 16, 2003, 11:03:48 PM

I am in the middle of building a custom pc.
I am stuck on the ram because I can't decipher a certain part of the ram code.

Here's the listing:

 CORSAIR MEMORY XMS Extreme Memory Speed Series 256MB 64MX64 PC-2700C2PT

I've got everything figured out except the part about 64Mx64

What in the crap does it mean?

I'm thinking 4 banks of 64megs at 64 bits wide.

Is this a correct analogy?

to confuse things even more, it goes on to say this in furhter listing.

Organization: 32M x 64

What the hay?
 

Title: Re: Question of the day...
Post by: jumpship on February 16, 2003, 11:21:09 PM

If I remember correctly you are right in that 64Mx64 is 64megs @ 64bits but that equals 512megabytes.

64bits / 8 = 8bytes

8bytes x 64meg = 512MB

The part that says 32Mx64 is equal to 256MB

This is assuming I can remember 5 year old knowledge correctly! :-D

Title: Re: Question of the day...
Post by: on February 16, 2003, 11:29:03 PM

Thanks for the input.

Here's the whole listing in case anyone else wants to add anything.

CORSAIR MEMORY XMS Extreme Memory Speed Series 256MB 64MX64 PC-2700C2PT
 With Platinum - Silver Heat Spreader OEM

Specifications:
Speed 333 MHz
Organization 32M x 64
CAS Latency 2-3-3-6-T1
Memory type DDR
 

I see what you are saying...
 
Here's a link to the specs

Here (http://www.corsairmicro.com/main/products/specs/cmx256a-2700c2.pdf)

Title: Re: Question of the day...
Post by: Herewegoagain on February 17, 2003, 01:30:04 AM

As a general rule, you can multiply 8X the first number and determine the capacity of the chip.  Thus, 8X64=512MB  or 8X32=256MB

This goes the same as the old 72pin simms which you could multiply 4X the first number and determine the size.