I found a samsung 16gb ram stick nice price

[blunti]

Technically, Yes, larger sticks tend to consume more energy than smaller capacity sticks (more parts on the PCB = more power consumed = more power converted to heat). But this is on the specific case that there are in fact more memory chips on the DIMM.

When you consider higher density memory chips however, this may not hold true (i.e. double the memory density, so you could get an 8GB stick with the same number of memory chips as a 4GB stick constructed of memory chips that are half the density of those used in the 8GB stick).

Fortunately, DDR3 doesn't run as hot as Fully Buffered DDR2 used in 2006 - 2008 (hint: standard DDR3 sticks, including ECC variants, don't require a heat sink on it). Another thing to consider, is the DIMM slots do get decent airflow in the current MP's as well, so there's no need to worry about this.


What system are you trying to put them in?

I ask, as the 2009 and 2010's are the only systems that can use DDR3 RDIMM's (impression you do need DDR3, but need to be sure you're not running a 2006 - 2008), and the DIMM slots are located on the CPU tray (daughterboard), rather than the memory risers in previous Intel based MP's (2006 - 2008).

If you are using a 2009/10, then stuff one in DIMM slot 1 and DIMM slot 2 (take a look here; Memory How-To .pdf from Apple).

Please note, that you'll need to remove the OEM memory or any other that's not RDIMM (OEM = Unbuffered, aka UDIMM, as are the 4GB and smaller sticks from OWC).


This will depend on the software you're using.

But for most users, it won't matter, as there's not a lot of software that can actually utilize the memory bandwidth of the memory controllers in your system. Capacity will mean more for the user than the frequency it runs at.

thanks nanofrog you always seem to answer my questions in a heartbeat
2010 12core MP. i know that by writing "riser" it normally refers to the older gen MP's but please forgive me that my first mp was a 2,1 and im used to the term "riser"

as for the softwares: after effects and avid. illustrator too when i need to draw my own elements for a client...

thanks!


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[nanofrog]

thanks nanofrog you always seem to answer my questions in a heartbeat
2010 12core MP. i know that by writing "riser" it normally refers to the older gen MP's but please forgive me that my first mp was a 2,1 and im used to the term "riser"

as for the softwares: after effects and avid. illustrator too when i need to draw my own elements for a client...

Capacity over freqency then.

Even if you use the 4th DIMM slot per CPU (say you've 1333 sticks installed, they'll automatically drop to 1066 due to interleaving; 1066 sticks in interleaved mode will drop to 800), will be fine so long as you've enough capacity to fill your needs.

 

[blunti]

Capacity over freqency then.

Even if you use the 4th DIMM slot per CPU (say you've 1333 sticks installed, they'll automatically drop to 1066 due to interleaving; 1066 sticks in interleaved mode will drop to 800), will be fine so long as you've enough capacity to fill your needs.

ahh so basically if im going to put 4 stick in then the memory speed will drop from 1066 to 800?
not sure if this is ideal for after effects though..

how about 3 of these 1066mhz 16gig sticks for triple-channel?
would that work at full speed and in triple-channel mode?

thx


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[Umbongo]

ahh so basically if im going to put 4 stick in then the memory speed will drop from 1066 to 800?

Only if you are using quad-ranked DIMMs. I think Samsung do have a dual ranked 16GB DIMM.[/QUOTE]

 

[blunti]

Only if you are using quad-ranked DIMMs. I think Samsung do have a dual ranked 16GB DIMM.

[/QUOTE]

thanks for the update after a long debate I actually returned the 12 core today since i was still in the 2 weeks return window. Will wait a few days to see what's going to happen witb the MP line.

In the meantime I'm working with the PC that I have...


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[yauzers619]

The SuperBiiz price is getting better by the week.

Can I run my MacPro 2.8Ghz Quad Upgraded to 3.2Ghz Hex, with just one or two 16GB DIMMs? Will this slow down my computer?

Thanks Gang.

 

[Umbongo]

The SuperBiiz price is getting better by the week.

Can I run my MacPro 2.8Ghz Quad Upgraded to 3.2Ghz Hex, with just one or two 16GB DIMMs? Will this slow down my computer?

Thanks Gang.

You can, but yes it will give you slower memory performance. I really wouldn't go with just one DIMM.

 

[philipma1957]

You can, but yes it will give you slower memory performance. I really wouldn't go with just one DIMM.

there is a second problem if you buy 1 stick or 2 sticks instead of

3 (max is 48gb ram) these sticks must have perfect matches to run . so 1 alone will work but if you buy a second and it is a later model it is not going to work. while 16gb sticks are nice you really should only buy them if you use 33gb to 45gb ram often. some power users do use that much ram. superbiiz does have 8gb sticks

http://www.superbiiz.com/detail.php...-DDR3-1333-8GB-ECC-REG-Original-Server-Memory

these are 117 each buy 4 for 468 gives you 32gb ram.

I have been using them for 3 months or so. code ICECREAM Gives you 10 bucks off.

$458.00 for 32gb ram should work for most users. If you need more then 32gb ram then grab the 16gb sticks just get 3 of them. then machine can only handle 48gb. it will cost about 3 x 333 or 999 with code 989 for 48gb. the 8gb sticks are the better deal.

 

[wonderspark]

there is a second problem if you buy 1 stick or 2 sticks instead of

3 (max is 48gb ram) these sticks must have perfect matches to run . so 1 alone will work but if you buy a second and it is a later model it is not going to work. while 16gb sticks are nice you really should only buy them if you use 33gb to 45gb ram often. some power users do use that much ram. superbiiz does have 8gb sticks

http://www.superbiiz.com/detail.php...-DDR3-1333-8GB-ECC-REG-Original-Server-Memory

these are 117 each buy 4 for 468 gives you 32gb ram.

I have been using them for 3 months or so. code ICECREAM Gives you 10 bucks off.

$458.00 for 32gb ram should work for most users. If you need more then 32gb ram then grab the 16gb sticks just get 3 of them. then machine can only handle 48gb. it will cost about 3 x 333 or 999 with code 989 for 48gb. the 8gb sticks are the better deal.

I'm very tempted to upgrade my 16GB to 32GB for all my HD video editing needs. I use up all 16GB within minutes every single day.
However, I'm not keen on the price of the 16GBx3. I'm amazed how prices have fallen since I got my 4GBx4 for $600-ish? Or was it $800-ish? That was January 2010.

 

[yauzers619]

there is a second problem if you buy 1 stick or 2 sticks instead of

3 (max is 48gb ram) these sticks must have perfect matches to run . so 1 alone will work but if you buy a second and it is a later model it is not going to work. while 16gb sticks are nice you really should only buy them if you use 33gb to 45gb ram often. some power users do use that much ram. superbiiz does have 8gb sticks

http://www.superbiiz.com/detail.php...-DDR3-1333-8GB-ECC-REG-Original-Server-Memory

these are 117 each buy 4 for 468 gives you 32gb ram.

I have been using them for 3 months or so. code ICECREAM Gives you 10 bucks off.

$458.00 for 32gb ram should work for most users. If you need more then 32gb ram then grab the 16gb sticks just get 3 of them. then machine can only handle 48gb. it will cost about 3 x 333 or 999 with code 989 for 48gb. the 8gb sticks are the better deal.

Thanks Phill, the 8GB DIMMs do make more sense. Thanks!

 

[yauzers619]

After months, I've pulled the trigger on 32 GB of RAM. (4 x 8GB Hynix) Thanks Phill for the recommendation.

Interesting thing is that I'm still getting Page Outs in the 400-800 range.

What else besides RAM can affect the page out number?

 

[philipma1957]

can you post a screen shot of activity monitor? notice my second screen shot shows all processes in order most to least ram