Beautiful! A great read. Thanks. Angelo
-----Original Message-----
From: Mike B.
Sent: Sunday, September 09, 2012 6:18 PM
To: [email protected]
Subject: Re: [Blind-Computing] Computer Memory Questionn
Hi David & Jim,
Below is what I found.
http://www.life123.com/technology/computer-hardware/ram/different-types-of-ram.shtml
From: net bat
it would not fit. each type of memory uses a different type of socket.
most ddr has 184 pins
ddr2 and 3 have 200 or 240 pins.
and each generation of dd r memory requires faster buss speeds.
Net bat
What Are the Different Types of RAM
By: Dachary Carey
Different types of RAM work with different systems. Do you know what type of
RAM your system uses?
Different motherboards require different types of RAM, depending on the
processor, chipset and a whole host of factors. Do you know what kind of RAM
you
need for a RAM memory upgrade, and how to make your computer run like a
dream?
SDRAM is almost obsolete.
SDRAM, which stands for Synchronous DRAM, is one of the earlier RAM
protocols, and it's almost obsolete. You'll be hard-pressed to find SDRAM in
a brick-and-mortar
computer store, and even modern online stores have a very limited selection;
less than two dozen, typically, compared to hundreds of options in other
types
of RAM. SDRAM is 168-pin RAM, and runs at speeds ranging from 66MHz to
133MHz.
DDR SDRAM is the modern starting point.
DDR SDRAM is short for Double Data Rate Synchronous DRAM and is similar to
but faster than the old SDRAM standard. DDR RAM is a 184-pin module, and
works
with certain older motherboards. While DDR RAM isn't out of style yet, it's
an older RAM protocol and it'll go the way of SDRAM eventually. You may
still
have as many as a hundred options for DDR RAM, whereas you'd have over 300
options for newer memory protocols. In technical speak, DDR RAM completes
two
data transfers per memory clock cycle.
DDR2 RAM is a more common modern RAM selection.
DDR2 RAM is the modern computer memory protocol, and it is the typical
choice for a mid-range gaming system, or a general workstation. It's a
240-pin RAM
module, and you guessed it-it's faster than DDR RAM. Through innovations in
technology, DDR2 RAM completes four data transfers per memory clock cycle,
making it considerably faster than DDR RAM.
DDR2 RAM is not backwards compatible, as it's an entirely different memory
module than DDR RAM. It's the typical choice in most modern desktop
computers,
so you probably need DDR2 RAM if you're performing a RAM memory upgrade.
Some online stores have as many as 350 options for DDR2 RAM, making it the
most
available RAM currently on the market.
DDR3 RAM is the next generation of RAM.
DDR3 RAM is the newest memory protocol and is effectively twice as fast as
DDR2 RAM, which is twice as fast as DDR RAM. DDR3 RAM is the best choice of
gaming RAM for a high-end gaming system, if your motherboard supports it.
DDR3 RAM modules may contain as much as 16GB per stick, so it's definitely
the
RAM of choice if you want a lot of memory in your system. While DDR3 RAM is
a 240-pin module, it's not backwards compatible with DDR2 or any prior
technology.
A note on RAM speeds.
Speed is a tricky thing to calculate for RAM. Generally speaking, the faster
the memory clock, the lower the memory cycle, and that makes the RAM
transfer
data faster. Likewise, you'd need a fast bus rate and data rate to move data
quickly through the RAM. Look for these measurements when you're choosing
your RAM in order to narrow down your choices.
Take care.
Mike
This email was sent from our, iGasSucking460Powered1969Mach1!
----- Original Message -----
From: Jim Redding
To: [email protected]
Sent: Sunday, September 09, 2012 2:32 PM
Subject: Re: [Blind-Computing] Computer Memory Questionn
I don't know about the number of pins, but the memory sticks that we have
worked with are a different length and will not interchange. There may be
variations that I'm not aware of though.
Please lett me know what you find out. I do know that chips marked ddr and
ddr1 seem to be the same and work together.
Jim
----- Original Message -----
From: "Mike B." <[email protected]>
To: <[email protected]>
Sent: Sunday, September 09, 2012 3:48 PM
Subject: Re: [Blind-Computing] Computer Memory Questionn
> Hi David & Jim,
>
> Thank you very much for your input. If both the DDR & DDR2 are 140 pin
> memory sticks & will go into the mother board willA. the computer /
mother
> board be damaged in any way, or B. the computer work normally but, just
the
> added memory not be recognized? All input is greatly appreciated.
Thanks
> again, take care.
> Mike
> This email was sent from our, iGasSucking460Powered1969Mach1!
>
> ----- Original Message -----
> From: Jim Redding
> To: [email protected]
> Sent: Sunday, September 09, 2012 12:50 PM
> Subject: Re: [Blind-Computing] Computer Memory Questionn
>
>
> I don't think that it will fit into the slot in the mother board
> Jim
> ----- Original Message -----
> From: "Mike B." <[email protected]>
> To: "Blind Computing" <[email protected]>
> Sent: Sunday, September 09, 2012 12:42 PM
> Subject: [Blind-Computing] Computer Memory Questionn
>
>
> > Hi All,
> >
> > What would happen if someone put DDR2 memory into a DDR XP system?
All
> help
> > will be greatly appreciated. Thanks much, take care.
> > Mike
> > This email was sent from our, iGasSucking460Powered1969Mach1!
> > For answers to frequently asked questions about this list visit:
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>
>
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