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Thread: Figuring out G.Skill's SNs

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    Figuring out G.Skill's SNs

    I thought it was about time to make a complete list of all the different codes G.Skill uses to mark different ICs and their manufacturers. A lot of valuable info is scattered over many different threads, I tried to collect as much info as I could, please feel free to add more numbers or dispute what I wrote!

    Let's start:

    G.Skill serial numbers always start with the year and week, for example 913 is the 13th week of 2009 while 1240 is the 40th week of 2012. Pretty straightforward.

    After that there are four digits which stand for different ICs/manufacturers:

    0000 - Review/Test sample (no IC specified)
    01xx - Micron
    0140/0150/0160
    02xx - Hynix
    0240/0260
    03xx - Samsung
    0340/0360
    06xx - Elpida
    0640
    0650/0660 BBSE
    0690 MxH-E Hyper (small chance of BBSE/EBSE)
    07xx - Elixir (/Nanya)
    0740
    08xx - Nanya (sometimes eTT/uTT)
    0840/0860
    09xx - PSC eTT/uTT
    0940
    10xx - Powerchip/PSC
    1040
    11xx - SpecTek (/Micron)
    1120/1140
    12xx - Qimonda/Aeneon (sometimes eTT/uTT)
    1240/1260
    13xx - ProMOS?? (possibly blank IC)
    1340

    Since April 2012 G.Skill is using new numbers:

    AB40 - Samsung/Hynix (seems to be both, only used for a short time)
    000x - Hynix (only on samples?)
    0000

    x10x - Nanya eTT/uTT
    2100
    x15x - ??? eTT/uTT
    2150
    x20x - Powerchip/PSC (sometimes eTT/uTT)
    1200
    x30x - Micron
    3300
    x40x - Hynix
    1400/2400/3400
    x50x - Samsung
    1500/2500/250B
    x60x - SpecTek (/Micron)
    1600
    x80x - Elpida
    0800/1800
    3800 MxH-E Hyper

    The first digit of the new serial numbers and the last two digits of the old serial numbers might indicate the speed bin originally assigned by the IC manufacturer.

    These four digits are followed by six more digits which seem to be consecutive numbers assigned to each kit.

    This is it for now!



    Of course credit for this goes to many people like Tapakah, stunned_guy and many more!

    If you need any more info about a specific memory kit, please visit the RAMlist at i4memory.


    Edit 02.11.12: I've added some info from OCX, I see Tapakah has updated his thread tonight as well. ^^
    Edit 18.11.12: Update for x100 and x600
    Edit 20.11.12: Update for 2100, added 0800
    Edit 21.11.12: Decided to put 2100 and 2150 into different categories
    Edit 08.12.12: Update for 1240 -> Qimonda
    Edit 16.12.12: Small corrections
    Edit 22.01.13: Added 1340 -> ProMOS, 09xx changed to "no idea"
    Edit 09.03.13: Added 3800 -> Elpida MxH-E Hyper
    Edit 25.03.13: Added 0940 -> PSC eTT/uTT
    Edit 12.04.14: Added 0690 -> EBSE
    Edit 31.05.14: Fourth spot changed to variable
    Edit 16.09.14: Added 0150 -> Only D9GTR? (1600 7-7-7 @ 1.9V kits)
    Edit 06.10.14: Added 3400 -> DDR4 only so far, marked in italic
    Edit 17.11.14: Added 3300 -> DDR4 only so far, marked in italic, seen on F4-2400C15Q-16GRB kit
    Last edited by Don_Dan; 11-17-2014 at 11:03 AM. Reason: Update

    Quote Originally Posted by chew* View Post
    You can never have enough D9's.

  2. #2
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    Good to see this information now also available on XS, nice work, Dan

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    Quote Originally Posted by websmile View Post
    Good to see this information now also available on XS, nice work, Dan
    Thanks mate!

    Quote Originally Posted by chew* View Post
    You can never have enough D9's.

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    thanks very much

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    I hate to say it, but good job Daniel :p
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    Very useful and now it is bookmarked. Thanks.
    In memory of Gracie, my sweet, sweet wife and mother of my children. Darling, we will miss you dearly. May you rest in peace (born to this world on March 30, 1976; went to her Heavenly Father on Good Friday, April 22, 2011).

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    Quote Originally Posted by basco View Post
    thanks very much
    Quote Originally Posted by Reefa_Madness View Post
    Very useful and now it is bookmarked. Thanks.
    You're welcome!

    Quote Originally Posted by Leeghoofd View Post
    I hate to say it, but good job Daniel :p
    Thanks Alby ( a.k.a. old man )!

    Quote Originally Posted by chew* View Post
    You can never have enough D9's.

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    New kit Trident X 2666C10 Samsung based:

    i7 4930K
    32GB Corsair Vengeance Pro DDR3-2400C10
    Asus Rampage IV Black Edition
    2x GeForce GTX 780
    Corsair AX1200
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    Quote Originally Posted by Shiranui Gen-An View Post
    New kit Trident X 2666C10 Samsung based:
    Thanks for the post!

    Quote Originally Posted by chew* View Post
    You can never have enough D9's.

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    Quote Originally Posted by Shiranui Gen-An View Post
    New kit Trident X 2666C10 Samsung based:


    Newegg has them for $180. Seems kind of pricey for 8gb or RAM. What are they capable of as far as over clocking is concerned?


    Slightly slower CL 11 2666mhz kit can be had for around $120.

    The cheapy Sammy 8GB kits can be had for $40.


    What makes these so special?

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    Quote Originally Posted by SonDa5 View Post
    Newegg has them for $180. Seems kind of pricey for 8gb or RAM. What are they capable of as far as over clocking is concerned?


    Slightly slower CL 11 2666mhz kit can be had for around $120.

    The cheapy Sammy 8GB kits can be had for $40.


    What makes these so special?
    If the Dominator Platinum 2666C10 sticks are any indication, A LOT.
    i7 4930K
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    What is it, DS or SS ?

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    Quote Originally Posted by Shiranui Gen-An View Post
    New kit Trident X 2666C10 Samsung based:

    But which Sammies? Weren't there some kits found that were sporting HYK0 chips, instead of HCH9?
    In memory of Gracie, my sweet, sweet wife and mother of my children. Darling, we will miss you dearly. May you rest in peace (born to this world on March 30, 1976; went to her Heavenly Father on Good Friday, April 22, 2011).

    http://animoto.com/play/E0wFhd6tN0nA...ent=challenger

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    Quote Originally Posted by felix_w View Post
    What is it, DS or SS ?
    The kit must be double-sided, Samsung 4Gb ICs can't do those clocks.

    Quote Originally Posted by Reefa_Madness View Post
    But which Sammies? Weren't there some kits found that were sporting HYK0 chips, instead of HCH9?
    I think there's no way to determine which ICs are used without removing the heatspreader. In my opinion it doesn't matter anyway, we know it must be some kind of Samsung 2Gb D-rev chip, after binning is done by G.Skill the difference between HCH9 and HCK0 should be negligible.

    Quote Originally Posted by chew* View Post
    You can never have enough D9's.

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    Whats the next rev after d?20nm chips from samsung should be extremely interesting,wonder when they show up....

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    Quote Originally Posted by Don_Dan View Post

    I think there's no way to determine which ICs are used without removing the heatspreader. In my opinion it doesn't matter anyway, we know it must be some kind of Samsung 2Gb D-rev chip, after binning is done by G.Skill the difference between HCH9 and HCK0 should be negligible.
    I respectfully disagree with you, my young friend, as to it not mattering. It does to me.

    I'm have a pretty good idea as to what HCH9 chips can do at various voltages. The experience with HCK0 is pretty restricted, mostly to Samsung generic, so we don't really know whether they have been limited by such things as the layout of the PCB used by Samsung on the LV / LP modules, or whether they don't clock as high, but if you sample results from known HCH9 based stuff, compared to known HCK0 the odds are that the former will best the latter. For the same dollars I'd rather get HCH9 in my modules.
    In memory of Gracie, my sweet, sweet wife and mother of my children. Darling, we will miss you dearly. May you rest in peace (born to this world on March 30, 1976; went to her Heavenly Father on Good Friday, April 22, 2011).

    http://animoto.com/play/E0wFhd6tN0nA...ent=challenger

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    Please allow me to add some confusion Daniel:



    Pretty sure it's some sort of Samsung chip:



    Sorry for messing things up, i think Gskill is to blame.
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  18. #18
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    i think Gskill is to blame
    Without a doubt.
    In memory of Gracie, my sweet, sweet wife and mother of my children. Darling, we will miss you dearly. May you rest in peace (born to this world on March 30, 1976; went to her Heavenly Father on Good Friday, April 22, 2011).

    http://animoto.com/play/E0wFhd6tN0nA...ent=challenger

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    Quote Originally Posted by Zeus View Post
    Please allow me to add some confusion Daniel:



    Pretty sure it's some sort of Samsung chip:



    Sorry for messing things up, i think Gskill is to blame.
    how do they clock,single or double-sided?

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    Quote Originally Posted by Alex-Ro View Post
    Whats the next rev after d?20nm chips from samsung should be extremely interesting,wonder when they show up....
    K4B2G0846E is already listed on Samsung's site as "MassProduction", but I haven't seen these chips yet.

    Quote Originally Posted by Reefa_Madness View Post
    I respectfully disagree with you, my young friend, as to it not mattering. It does to me.

    I'm have a pretty good idea as to what HCH9 chips can do at various voltages. The experience with HCK0 is pretty restricted, mostly to Samsung generic, so we don't really know whether they have been limited by such things as the layout of the PCB used by Samsung on the LV / LP modules, or whether they don't clock as high, but if you sample results from known HCH9 based stuff, compared to known HCK0 the odds are that the former will best the latter. For the same dollars I'd rather get HCH9 in my modules.
    Well, I agree with you that the data about HYK0 is pretty limited because most people test their Samsung LV/LP modules for energy saving settings at low volts, but I've seen some binned modules do very well at higher voltages. Please check this thread. You can see that the best modules are comparable to the Samsung value sticks with HCH9 we have seen. I don't think I'd prefer HCH9 over HYK0, but we might see more HCH9 just because they're cheaper. Another problem might be that most people don't bother to remove the heatspreader, for them it's good enough to know they have Samsung chips, so our data is limited on that side as well.

    Quote Originally Posted by Zeus View Post
    Please allow me to add some confusion Daniel:

    Pretty sure it's some sort of Samsung chip:



    Sorry for messing things up, i think Gskill is to blame.
    Great, of course they look entirely different than the chips on "2100"!



    I have the same question as Alex, double-sided or single-sided? I have never seen those chips to be honest... Can you tell me their size? And maybe some OC results?

    Quote Originally Posted by chew* View Post
    You can never have enough D9's.

  21. #21
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    Quote Originally Posted by Don_Dan
    Well, I agree with you that the data about HYK0 is pretty limited because most people test their Samsung LV/LP modules for energy saving settings at low volts, but I've seen some binned modules do very well at higher voltages. Please check this thread. You can see that the best modules are comparable to the Samsung value sticks with HCH9 we have seen. I don't think I'd prefer HCH9 over HYK0, but we might see more HCH9 just because they're cheaper. Another problem might be that most people don't bother to remove the heatspreader, for them it's good enough to know they have Samsung chips, so our data is limited on that side as well.
    HCH9 is cheaper than HYK0? Maybe for you, but not here. The generic HCH9 stuff sells for about the same price, or a few more $ (US) here than the HYK0 Samsung LV stuff. The HYK0 based Greens were recently on sale for $36 shipped per 2x4GB kit at the egg, or individually for $17 per module. The generic HCH9 sells for about $22 per module, plus shipping at the only two places that I know it can be had.

    As for preferences, I still believe that as a general rule your chances of higher clocks are with the HCH9. Not saying that there isn't HYK0 that clocks good, just that in my mind I think the odds are better with HCH9. If GSkills and others start binning HYK0 and begin to mass produce high-end modules with them (not just a few here and there), then I won't be too proud to admit I was wrong. At my age I've had plenty of practice at admiting I had it wrong.
    In memory of Gracie, my sweet, sweet wife and mother of my children. Darling, we will miss you dearly. May you rest in peace (born to this world on March 30, 1976; went to her Heavenly Father on Good Friday, April 22, 2011).

    http://animoto.com/play/E0wFhd6tN0nA...ent=challenger

    Heat

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    I'm with you on this one and that's why i don't own single HYK0 ,HCH9 is what rides in high-end sets

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    I guess that these types of discussions and opinions are probably best left for another thread, as there is no need to clutter this one up with what amounts to personal preferences, so I will do my part and refrain from making any more editorials...or at least I'll try real hard.
    In memory of Gracie, my sweet, sweet wife and mother of my children. Darling, we will miss you dearly. May you rest in peace (born to this world on March 30, 1976; went to her Heavenly Father on Good Friday, April 22, 2011).

    http://animoto.com/play/E0wFhd6tN0nA...ent=challenger

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    Got TridentX 8Gx2 F3-2400C10D-16GTX with 12451500..... and RipJawsZ 8Gx2 F3-2133C11D-16GZL with 12341500.....
    Will look after ic next day.

  25. #25
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    Daniel, The sticks are double sided and do 2000 C9 but there's no scaling after that. In other words: it's cr@p. For dimensions of the chip i'm gonna have to pull the spreaders again. I will if you insist though.
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