I feel really stupid asking this, but...

MarkS · May 11, 2006

What does the 2-2-2-12 or 4-4-4-12 or whatever mean? I'm only now getting back into the hardware side of things after a 9 year absence. Memory technology has changed quite a bit in that time. The last time I paid any serious attention to hardware, DIMMs had just started replacing SIMMs. Heck, I remember when SIMM cards were the new thing with up to four figure pricing.

I take the number sequence to mean something about timing, but I figure each different number represents something and I do not know what. I'm building a computer and DO NOT like not knowing something!

Fridge · May 12, 2006

http://www.corsairmicro.com/memory_basics/153707/index.html

Useful - watch the whole thing!

Sjaak · May 12, 2006

Lol that's a pretty cool presentation. It's a bit outdated but a damn good read/listen.

MarkS · May 13, 2006

Thanks!

Now, what is the main differences between DDR and DDR2?

Sjaak · May 13, 2006

MarkS said:
Thanks!

Now, what is the main differences between DDR and DDR2?

DDR2 has a different pin layout, slightly lower voltage, about the same/higher timings but much higher clockspeeds.

Dan0512 · May 13, 2006

Sjaak said:
DDR has a different pin layout, slightly lower voltage, about the same/higher timings but much higher clockspeeds.

DDR2

dan

Sjaak · May 13, 2006

stabob · May 13, 2006

That is a great link. I cant count the number of people that I want to make watch that.

Oxalic32 · May 13, 2006

Fridge said:
http://www.corsairmicro.com/memory_basics/153707/index.html

Useful - watch the whole thing!

Excellent link. Got anything similar to that but more up to date? That dicusses DDR2 and other things?

Fridge · May 15, 2006

That link is old - but the principles still apply, especially to DDR ram. It tells you what the timings *actually* are...

Like someone else said, DDR2 is just higher fsb (and physical differences). Its designed to keep up with massive quad-pumped FSBs of current pentiums.

Since currently, amd chipsets dont have a multiplied fsb, they have no need for anything more than DDR, though very soon AMD will start using DDR2 too, which is a good thing

I feel really stupid asking this, but...

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