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Dominator IC?

post #1 of 7
Thread Starter 
just got these to replace my Samsung 'wonder' ram:

http://www.newegg.com/Product/Product.aspx?Item=N82E16820233338

I was wondering if anyone knows what IC is used on this RAM? I was hoping someone here might know. smile.gif
They seem to run at decent speeds, so far its been running at 2333Mhz 9-11-11-31 1t 1.65v with 250x20. I have not tried to go any higher.
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post #2 of 7
XbitLabs tested several speeds of Dominator Platinums.

2133 MHz, 1.50V:



"SEC" means "Samsung Electron Corp.", and the K0 speed grade (2nd line of printing, barely visible) means 1600 MHz. I found only one faster speed grade in the Samsung catalog, MA, for 1866 MHz.

2400 MHz, 1.65V:



I think these also use Samsung K0 grade. The fastest grade listed in the Samsung catalog was "MA", or 1866 MHz.

2666 MHz, 1.65V:



Hynix's H9 speed grade is 1333 MHz, while PB is 1600 MHz, RD 1866 MHz, and TD 2133 MHz.

Notice that your 1.35V Samsung Wonder RAM has the same 1600 MHz K0 speed grade chips as that 1.50V 2133 MHz Dominator Platinum. I think the closest we can now buy to a non-overclocked module is Kingston HyperX Beast 1600 MHz, made from 1600 MHz 11-11-11 chips but rated for 9-9-9. Even many Crucial modules now have overclocked chips, even when the chips are no-name.
post #3 of 7
Thread Starter 
Quote:
Originally Posted by larymoencurly View Post

XbitLabs tested several speeds of Dominator Platinums.

2133 MHz, 1.50V:



"SEC" means "Samsung Electron Corp.", and the K0 speed grade (2nd line of printing, barely visible) means 1600 MHz. I found only one faster speed grade in the Samsung catalog, MA, for 1866 MHz.

2400 MHz, 1.65V:



I think these also use Samsung K0 grade. The fastest grade listed in the Samsung catalog was "MA", or 1866 MHz.

2666 MHz, 1.65V:



Hynix's H9 speed grade is 1333 MHz, while PB is 1600 MHz, RD 1866 MHz, and TD 2133 MHz.





Notice that your 1.35V Samsung Wonder RAM has the same 1600 MHz K0 speed grade chips as that 1.50V 2133 MHz Dominator Platinum. I think the closest we can now buy to a non-overclocked module is Kingston HyperX Beast 1600 MHz, made from 1600 MHz 11-11-11 chips but rated for 9-9-9. Even many Crucial modules now have overclocked chips, even when the chips are no-name.

Thank you sir! thumb.gif

So according to this, mine are Samsung. But mine are 1.65v, not 1.50v. Would this be a newer revision possibly? Or is it possible they are not Samsung, and they are Hynix?
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post #4 of 7
I'm going with they're Samsungs by the timings smile.gif
 
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post #5 of 7
For a long time 2133C9 models came in two flavours: 9-11-10 1.5V which was Samsung 2Gbit D-rev and 9-11-10 1.65V which was Hynix 2Gbit CFR.
The rated voltage of your kit suggests that they should be Hynix, but your result of 1166 9-11-11 at 1.65V is also doable with Samsung 2Gbit D-rev and Samsung 4Gbit B-rev (singlesided 4GB modules), which Corsair might have also decided to use. Moreover, newegg's ver3.24 picture also throws Micron 4Gbit as one of possible candidates.

I guess the best way for you to surely determine the ICs whould be taking a look at the version number that can be found on the stickers.
post #6 of 7
Hey man. Found this. Just look on your chips heatspreader to see what version they are. Im also gonna make a thread that hopefully gets stickied so that all Corsair and all other memory owners have an easy way of knowing who produces the IC's on their chips.

http://forum.corsair.com/forums/showthread.php?t=68811
http://ramlist.i4memory.com/ddr3/
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post #7 of 7
DRAM chip manufacturers:
  • produce no DDR3 chips with a recommended operating voltage over 1.50V
  • produce no DDR3 1600 MHz chips rated faster than 11-11-11
  • produce no DDR3 1866 MHz chips rated faster than 13-13-13
  • test their chips with machines costing millions of dollars, at temperatures as hot as 95 Celcius


Retail DDR3 module companies:
  • rate modules at 1.65V only when they failed testing at 1.50V
  • almost never use chips rated faster than 1600 MHz, even for their fastest modules, including those rated 2666 MHz
  • bin their chips by much more lax standards than chip manufacturers do, using test machines costing 99.9% less that may be nothing but glorified PCs with mechanisms that automatically insert and remove DIMMs


It's not enough to know the actual manufacturers of the chips but also whether they're prime quality or sub prime, and even if they're prime, whether or not they're factory overclocked.
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