I found a samsung 16gb ram stick nice price

[philipma1957]

http://www.superbiiz.com/detail.php...-1066-16GB-ECC-REG-Samsung-Chip-Server-Memory



it is 1066 type 444 is price for one. now sometimes superbiiz has good codes. but if you have a 2010 2.8 quad or a 3.2 quad this allows 48gb ram. in tri channel mode at a decent price. in a few months it may drop more.

 

[linuxcooldude]

Edit: was thinking about 8 core, not 4 core

 

[beto2k7]

@linuxcooldude.

not in one stick.

 

[philipma1957]

not in one stick.

reads 1 16gb stick for 444 dollars .

the 2010 machines should support this stick

 

[beto2k7]

reads 1 16gb stick for 444 dollars .

the 2010 machines should support this stick

I was answering linuxcooldude lol... sorry by the misunderstanding
Fixed previous post.

 

[DeeEss]

So how do you think 3x8GB (1333MHz) and 1x16GB (1066MHz) would run together?

 

[alphaod]

So how do you think 3x8GB (1333MHz) and 1x16GB (1066MHz) would run together?

They would all run at 1066MHz

 

[philipma1957]

I was answering linuxcooldude lol... sorry by the misunderstanding
Fixed previous post.

thats cool it happens

They would all run at 1066MHz

which may not be a bad thing if you really need 33gb ram to 38gb when you do your work.

4 sticks of 8gb at 1333 would be slower if the system was pull 33gb to 38gb ram a lot. then the 40gb ram at 1066 speed.

these sticks come in 1333 speed on the same site but the price was 633.
and the latency is cl 9


http://www.superbiiz.com/detail.php...-1333-16GB-ECC-REG-Samsung-Chip-Server-Memory



with the 1066 sticks latency is cl 7

i am also pretty sure that using the 1066 sticks with the hex 6 would work 48gb ram with that hex six would smoke even if it is 1066 and not 1333.

 

[DeeEss]

which may not be a bad thing if you really need 33gb ram to 38gb when you do your work.

4 sticks of 8gb at 1333 would be slower if the system was pull 33gb to 38gb ram a lot. then the 40gb ram at 1066 speed.

these sticks come in 1333 speed on the same site but the price was 633.
and the latency is cl 9


http://www.superbiiz.com/detail.php...-1333-16GB-ECC-REG-Samsung-Chip-Server-Memory



with the 1066 sticks latency is cl 7

i am also pretty sure that using the 1066 sticks with the hex 6 would work 48gb ram with that hex six would smoke even if it is 1066 and not 1333.

Thanks for the info, it's a big jump in price for the 1333. Yeah I heard that the difference between 1066 and 1333 is unoticeable in the realworld. Do you think there would be any issues running the 8GB sticks with the 16GB sticks other than the obvs speed difference? I've only just bought the 24GB of RAM a couple months ago but I have one empty slot and 40GB of RAM would be amazing and a good size jump.

I'm unfamiliar with the latecy numbers but guessing it's that it's the time it takes for the RAM to react to use?

 

[philipma1957]

my understanding of the latency is access speed lower number quicker access. so I am thinking that 1066 sticks with a CL 7 latency are just about as fast as the 1333 sticks with CL 9 latency. at 444 a stick it is tempting to buy and test but i think I will hold out a bit for a better price.

 

[DeeEss]

hold out a bit for a better price.

I agree. Im actually very tempted at that price. But I wonder what prices these sticks will drop to...

 

[philipma1957]

I remember 4gb sticks selling for 400 a piece and if you found one for 300 you were happy.

these 16gb were over 1000 each in dec.

so maybe they drop to 200 a stick.

 

[raMANY]

Thanks for this thread + links.
I see $373 for a single 16GB stick- hope price drops more in July.

You guys know if these will work as good as the OCW memory..?
I would get the OCW- but they sell min x3 for $1600
Can we install one, and buy more sticks later or do we have to get 3 sticks at once??

I'm on MP 5,1 2.4GHz 8 Core "Westmere".

 

[CaoCao]

Thanks for this thread + links.
I see $373 for a single 16GB stick- hope price drops more in July.

You guys know if these will work as good as the OCW memory..?
I would get the OCW- but they sell min x3 for $1600
Can we install one, and buy more sticks later or do we have to get 3 sticks at once??

I'm on MP 5,1 2.4GHz 8 Core "Westmere".

The former

 

[philipma1957]

Thanks for this thread + links.
I see $373 for a single 16GB stick- hope price drops more in July.

You guys know if these will work as good as the OCW memory..?
I would get the OCW- but they sell min x3 for $1600
Can we install one, and buy more sticks later or do we have to get 3 sticks at once??

I'm on MP 5,1 2.4GHz 8 Core "Westmere".

you can buy one stick at a time but these must be matching sticks. so if you buy one now and they are not around in two months you would need to buy all new.

 

[raMANY]

you can buy one stick at a time but these must be matching sticks. so if you buy one now and they are not around in two months you would need to buy all new.

Philip:
Right on- will it have to be EXACT model number, or another Samsung 16GB stick?

Edit:
Since this is one of the only threads/info on this subject that I've found combing the internets, I'll go ahead and ask this since there might be someone else silently participating:
Anyone out here that's had experience with these sticks or feedback ?
Thanks!

 

[shardey]

Philip:
Right on- will it have to be EXACT model number, or another Samsung 16GB stick?

Edit:
Since this is one of the only threads/info on this subject that I've found combing the internets, I'll go ahead and ask this since there might be someone else silently participating:
Anyone out here that's had experience with these sticks or feedback ?
Thanks!

I would like to know this as well.

 

[philipma1957]

this is samsung ram pdf the 16gb ram is on page 7


http://pdf1.alldatasheet.com/datasheet-pdf/view/347939/SAMSUNG/M393B2K70CM0.html


it is listed under registered ram As I understand registered ram it needs to fully match the rest of the ram to work.

 

[nanofrog]

it is listed under registered ram. As I understand registered ram it needs to fully match the rest of the ram to work.

Correct.

You cannot mix Registered memory with non-ECC or Unbuffered ECC memory.

 

[yauzers619]

Phill, or anyone else, has anyone been able to confirm that the 16GB Samsung works in the MacPro 2010?

Currently (july 4) it's $353 a pop and getting more compelling with every price drop.

Also can I mix my 4GB OWC RAM work in conjunction with these Samsung modules?

 

[nanofrog]

Phill, or anyone else, has anyone been able to confirm that the 16GB Samsung works in the MacPro 2010?

I'd be shocked if it didn't work, as Samsung is a major memory supplier (they actually make the memory chips found on a number of various DIMM's).

Also can I mix my 4GB OWC RAM work in conjunction with these Samsung modules?

Unfortunately, No. The 8GB sticks you're considering are Registered, and cannot be mixed with Unbuffered sticks at all (OWC 4GB sticks are Unbuffered). It won't work if you do (would have to pull either the Unbuffered or Registered sticks before the system would POST properly if you do mix them).

BTW, OWC sells 8GB Registered sticks as well (offer kits), so go with whichever is cheaper.

 

[wonderspark]

I don't know if it's true, but I was under the impression that larger HDDs would run hotter than smaller / earlier models. I imagine drive makers are always improving temp management with each leap forward, but it made me wonder:

Do larger RAM sticks run any hotter than smaller sticks? If so, is it all more or less inconsequential with the airflow Mac Pro cases provide?

 

[blunti]

if i was to put 2 of these in a 12 core 2010 MP how would I need to install them? 1 in the upper memory compartment and 1 in the lower? assuming no other RAMs are used.

also how would a 12core perform with 1066mhz rams instead of 1333?


Sent from my iPhone using Tapatalk

 

[nanofrog]

Do larger RAM sticks run any hotter than smaller sticks? If so, is it all more or less inconsequential with the airflow Mac Pro cases provide?

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.

if i was to put 2 of these in a 12 core 2010 MP how would I need to install them? 1 in the upper memory compartment and 1 in the lower? assuming no other RAMs are used.

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).

also how would a 12core perform with 1066mhz rams instead of 1333?

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.

 

[Umbongo]

also how would a 12core perform with 1066mhz rams instead of 1333?

If you use all 8 memory slots on a 12-core Mac Pro with registered memory then the maximum speed you can get is 1066MHz anyway due to how the memory controller works. Just worth a note I think. Doesn't happen with unbuffered DIMMs or if you only use 3 DIMMS per CPU.