Question about SDR memory vs DDR memory

[Andy in NJ]

I currently have 1 gig of SDR PC133 memory. Will I experience a significant
speed increase if I go to 1 gig of DDR 433 memory? How would I know if my
motherboard can support it?

I know very little about memory, so please excuse what may be an obvious
question to everyone out there.

 

[yak]

I currently have 1 gig of SDR PC133 memory. Will I experience a significant
speed increase if I go to 1 gig of DDR 433 memory? How would I know if my
motherboard can support it?

I know very little about memory, so please excuse what may be an obvious
question to everyone out there.

If you are running sdram chips you cannot put DDR ram into that
motherboard.

They require different sockets.

 

[General Schvantzkoph]

I currently have 1 gig of SDR PC133 memory. Will I experience a significant
speed increase if I go to 1 gig of DDR 433 memory? How would I know if my
motherboard can support it?

I know very little about memory, so please excuse what may be an obvious
question to everyone out there.

SDR and DDR are incompatible. You'll need a new motherboard and
processor if you want to use DDR.

 

[kony]

I currently have 1 gig of SDR PC133 memory. Will I experience a significant
speed increase if I go to 1 gig of DDR 433 memory? How would I know if my
motherboard can support it?

I know very little about memory, so please excuse what may be an obvious
question to everyone out there.

There are some very common motherboards that can use either PC133
or DDR memory, because they have both types of slots on the
board. Both types cannot be used at the same time though, it's
one or the other. You make no mention of the specific
motherboard make/model so we cannot know if this is the
situation. Consult your motherboard manual for memory type
supported.

IF your motherboard supports DDR memory (PC1600, PC2100, etc)
then you should be able to use DDR433, most often called PC3500.

 

[Andy in NJ]

If you are running sdram chips you cannot put DDR ram into that
motherboard.

They require different sockets.

My motherboard has 2 sockets for SDR and 2 sockets for DDR.

 

[Andy in NJ]

SDR and DDR are incompatible. You'll need a new motherboard and
processor if you want to use DDR.

You're the second person to tell me this. Do you guys REALLY think I'd ask
this if my motherboard didn't support DDR? I have 2 slots for SDR and 2
slots for DDR.

 

[yak]

My motherboard has 2 sockets for SDR and 2 sockets for DDR.

Then go to crucial.com like a good boy and use the memory finder for
your motherboard.

433 will just be wasted on an old mb. You probably will see some
improvement doing to double data rate, at whatever speed.

 

[Andy in NJ]

Then go to crucial.com like a good boy and use the memory finder for
your motherboard.

433 will just be wasted on an old mb. You probably will see some
improvement doing to double data rate, at whatever speed.

After my last reply, I located my motherboard's manual. I supports the
PC2100 DDR, so I bought 2 gigs of the 233mhz stuff, the max my motherboard
can use.

 

[Trent©]

You're the second person to tell me this. Do you guys REALLY think I'd ask
this if my motherboard didn't support DDR? I have 2 slots for SDR and 2
slots for DDR.

You said...

I currently have 1 gig of SDR PC133 memory. Will I experience a significant
speed increase if I go to 1 gig of DDR 433 memory? How would I know if my
motherboard can support it?

When you use 'it' instead of the correct noun, you'll get ambiguous
replies. We thought you were asking if yer mb supported DDR memory.

Use nouns whenever you can...instead of pronouns...especially in
technical questions.


Have a nice week...

Trent©

What do you call a smart blonde?
A golden retriever.

 

[Andy in NJ]

You said...


When you use 'it' instead of the correct noun, you'll get ambiguous
replies. We thought you were asking if yer mb supported DDR memory.

Use nouns whenever you can...instead of pronouns...especially in
technical questions.

The way I read it, I think it's obvious that my motherboard has DDR slots.
Why else would I ask about a speed increase SDR vs DDR? Based on the fact
that my motherboard has DDR slots, it's apparent that I was asking how I
would find out if my motherboard supported the 433 memory. Since I posted
this message, I found my motherboard's manual, found that it can support up
to 2 gig of the DDR 266 and I've purchased 2 gig of DDR 266... Thank you for
the replies, though.

 

[Trent©]

The way I read it,

"The way I read MY ORIGINAL POST (it)..."

I think it's obvious that my motherboard has DDR slots.

Where did your OP (original post) say that you had DDR slots. And
later in the post you say...

Why else would I ask about a speed increase SDR vs DDR?

Because you know very little about memory?...and didn't know that the
two are not interchangeable? At any rate, that's what some of us
assumed.

Based on the fact
that my motherboard has DDR slots,

So you told us...later.

it's apparent that I was asking how I
would find out if my motherboard supported the 433 memory.

Its now MORE apparent...but it wasn't clearly apparent with your first
post.

Since I posted
this message, I found my motherboard's manual, found that it can support up
to 2 gig of the DDR 266 and I've purchased 2 gig of DDR 266... Thank you for
the replies, though.

In the future, you can often find a manual quicker on the Internet
than going thru all the drawers in the house! lol Most times, that's
what I do...just browse the manufacturers site. The Internet is a
great thing...sometimes!

Anyway...good luck.


Have a nice week...

Trent©

What do you call a smart blonde?
A golden retriever.

 

[Andy in NJ]

Because you know very little about memory?...and didn't know that the
two are not interchangeable? At any rate, that's what some of us
assumed.

Tsk tsk. There's that "A" word... ya know what that makes U and Me, right?

 

[Spajky]

I currently have 1 gig of SDR PC133 memory. Will I experience a significant
speed increase if I go to 1 gig of DDR 433 memory?

No !

 

[Andy in NJ]

No !

That's funny, that's contrary to all the other replies I've gotten and
everything I've read on the internet.

 

[kony]

That's funny, that's contrary to all the other replies I've gotten and
everything I've read on the internet.

If I read your previous post correctly, you previously had memory
at 100MHz, which on an integrated video motherboard, will
significantly slow down not only the video but all tasks, because
too little bandwidth is remaining. In a different situation,
like moving from 133MHz PC133 to DDR266 PC2100 memory, on a board
with separate video card, the gain would only be around 3-10%
except in the most memory-constrained tasks, but for your
particular board you may see a larger gain, well over 10%. Even
so it'll be noticably slower than a modern board like nForce2
with separate video card and FSB/Mem raised to their full
potential.

I wouldn't buy 1GB of DDR2100 for that system. It'd be better to
buy a newer chipset motherboard, video card, CPU, etc
(progressively rebuild whole thing, but in that case it might be
better to just start from scratch, keep that system whole).

 

[Spajky]

.... in the real life performance (not theoretical bandwith benches!)
(you asked for real life speed increase, didn´t you?)

That's funny, that's contrary to all the other replies I've gotten and
everything I've read on the internet.

thats because people fall on the marketing mumble-jumble ....
(get hypnotized by that)

& you´ve not read old reviews about MoBos like yours (double ram type
slots ones).

You can replace the ram (since I see you´ already bought it) & work
with your machine to see if there is any practical speed boost-up

or get WinRAR3.30 from http://www.rarlab.com/ , there is incorporated
mem & his subsystem real life perforamance test & do it with both type
of ram you have ...

- my sdram sistem benches (135Fsb) 315 points ... for example ..