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Memory Very low profile DDR4 ram
- Thread starter K-philip
- Start date
FYI: Aztek canceled the order as out of stock, so looks like that is a dead end.
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https://item.taobao.com/item.htm?id=631136943946 here is where I bought them. Yes I asked Aztek/PC Connection and some EU sellers, no luck. I was planning on buying a case from China, so added the RAM to the order.
Thanks. I searched Superbuy earlier today and found 3 hits:
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www.superbuy.com
I purchased 4 of the CN ￥590.00 "Xiaoyun it electronic main store" (晓云it电子主营店) and will see if I get them.
- Superbuy Link: https://www.superbuy.com/en/page/bu...htm?id=648723619830&nTag=Agent-product-taobao
- Taobao Origin Link (that I get a URL redirect from saying it cannot be purchased from US): https://item.taobao.com/item.htm?id=648723619830
Firstly thanks for documenting which product you found. One question, I cant find in the description if this is unbuffered. Also may aswell confirm, each stick is 16gb correct?Thanks. I searched Superbuy earlier today and found 3 hits:
Superbuy - The Best Taobao Agent Help You Shop,Shipping From China
The best way Shop From China. Browse over 1 billion products from China's shopping platforms(taobao.com,1688.com,tmall.com). Help customers buy chinese products and shipping to gobal. Free purchase, quality inspection, photography and 90-day free storage.
I purchased 4 of the CN ￥590.00 "Xiaoyun it electronic main store" (晓云it电子主营店) and will see if I get them.
If this fails I have a co-worker in Shenzhen that says he can try to get them for me and slip them in to the next freight shipment he sends to the US office.
- Superbuy Link: https://www.superbuy.com/en/page/buy/?url=https://item.taobao.com/item.htm?id=648723619830&nTag=Agent-product-taobao
- Taobao Origin Link (that I get a URL redirect from saying it cannot be purchased from US): https://item.taobao.com/item.htm?id=648723619830
Would you be able to take a moment to help me confirm that this memory would work with a z390-i intel based system?
ROG STRIX Z390-I GAMING | ROG Strix | Gaming Motherboards｜ROG - Republic of Gamers｜ROG United Kingdom
Best Intel Z390 LGA 1151 mini-ITX gaming motherboard with advanced cooling, futuristic styling with RGB lighting and the latest connectivity dual M.2, USB Type-C
rog.asus.com
I am trying to get a bigger fan on my system as the heat here has sent my system a little too close to the sun.
Check out this link to Micron's VLP UDIMM RAM part catalog: https://www.micron.com/products/dram-modules/vlp-udimm/part-catalog
All of those part numbers should be unbuffered, you can download the data sheets too for more info.
Looking at your motherboard specs it seems it only supports non-ECC ram. I have heard of some people successfully running ECC ram in non-ECC mode, but I wouldn't count on them working.
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The "U" in "UDIMM" stands for "Unregistered", which also means "Unbuffered".
As @glimbersnrufflles said, I am just looking at the part # in the pics, MTA18ADF2G72AZ-3G2..., and know that is a UDIMM per the datasheet at https://www.micron.com/products/dram-modules/vlp-udimm/part-catalog/mta18adf2g72az-3g2
I cannot confirm if that memory will or will not work with that z390 mobo.
Many mobos nowadays either have no problem running ECC memory or can be configured to work with them.
You'd have to continue to ask around if anyone else has tried to run ECC on that mobo series and can confirm success or failure.
Finally received my pair of MTA18ADF2G72AZ-3G2E1 ram (2*16GB). Time to test it out 
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Awesome! I have 4 identical that are status packed and waiting for DHL courier to get to me in 3-6 days!Finally received my pair of MTA18ADF2G72AZ-3G2E1 ram (2*16GB). Time to test it out
I am building two Dan Case A4-SFX (one black/black, one silver/white/beige) AMD 5900 [65W non-X] 3080 rigs with Alpenföhn Black Ridge single underslung 120mm fan and these VLP UDIMMs.
Bought on 7/7, received on 7/15, total cost CN ￥2370.00 parts + CN ￥155.00 shipping, ~ $390.53 USD, $97.63 USD each.
www.superbuy.com
I'm pretty shocked at how fast I got them and how not so expensive they are!
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The best way Shop From China. Browse over 1 billion products from China's shopping platforms(taobao.com,1688.com,tmall.com). Help customers buy chinese products and shipping to gobal. Free purchase, quality inspection, photography and 90-day free storage.
www.superbuy.com
I'm pretty shocked at how fast I got them and how not so expensive they are!
I just installed some Crucial DDR4-2666 16GB VLP (MTA18ADF2G72AZ-2G6E1ZG) sticks. These are junk Micron "Rev I" dinosaur chips (D9SRJ). They do not overclock at all and will only run stock. I tried 1.4v and anything 2800mhz will not post.
If you want to overclock, I think the Rev E variants of these things are DDR4-3200, which is not available anywhere in the states right now. I guess I will just have to wait for 3200mhz sticks to come back in stock for an upgrade.
If you want to overclock, I think the Rev E variants of these things are DDR4-3200, which is not available anywhere in the states right now. I guess I will just have to wait for 3200mhz sticks to come back in stock for an upgrade.
Just buy them from Superbuy using the link I provided above.
I bought 4 and they came out to <$100 each total (including shipping) and I got them in 8 days!
Buying 2 might make them ~$110 each, but that is still cheaper than the unobtainium versions in the US.
VLP UDIMM part catalog
Catalog of VLP UDIMM modules from Micron, providing low-profile solutions for tight spaces in personal computers
www.micron.com
There are two variants, 2G6E1 that runs at 2666MHz and 3G2E1 that runs at 3200MHz
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item.taobao.com
This shows 3G2B2TG which I has really no idea what that (B2TG) means, and I am actually very extremely uncomfortable to buy stuff on taobao
Yes, the 2600MHz 2G6 are much less desirable than the 3200MHz 3G2.
Things change, and look a bit different from when I bought back in July.
I bought MTA18ADF2G72AZ-3G2A1.
My pic from my build at https://pcpartpicker.com/b/4zV7YJ
I too was extremely uncomfortable buying from taobao.
I DMed several members here that had bought from them successfully and I took the leap of faith and was extremely pleased with how nice and quick the acquisition went!
The purchase experience went fairly smoothly: I bought 4 on 2021/07/07 for $367 and by 7/12 I had confirmed pictures of the coveted "D9WFL e-die", and then it cost me $22 to DHL them to me, and I got them on 7/15. $97.63 each total, overall still a lot cheaper than the $125 each price that was never going to be in stock in the US!
I don't see any MTA18ADF2G72AZ-3G2A1 available on SuperBuy anymore.
I don't know what the MTA18ADF4G72AZ-3G2B2TG are.
The only ones I see today are MTA18ADF2G72AZ-3G2E1:
Superbuy - The Best Taobao Agent Help You Shop,Shipping From China
The best way Shop From China. Browse over 1 billion products from China's shopping platforms(taobao.com,1688.com,tmall.com). Help customers buy chinese products and shipping to gobal. Free purchase, quality inspection, photography and 90-day free storage.
www.superbuy.com
Sorry.
You could always try those and when you get the confirmation picture reject them if the individual chips are not "D9WFL" e-dies.
Good luck!
Worked like a charm! I copied your settings for the Kingston KVR26N19S8L/8 kit settings from your 3600 @3600MT/s with my Ryzen 5900 OEM/Asrock b550 ITX Phantom and it worked perfectly. I will update this post if I get any errors down the road.Hey everyone, I've been testing several VLP kits lately on the search for the best option for my system (and out of fascination, they're cool and niche). I figured I should tell this thread about my experience.
My kits:
- Kingston KVR26N19S8L/8 2x8GB 2666C19
- V-Color TE416G26D819V-VKC 2x16GB 2666C19 ECC
- Innodisk M4C0-AGS1TCIK 2x16GB 2666C19 ECC
MB: Asus Rog Strix B450-I Gaming
CPU: R5 3600 (previously an Athlon 200GE)
The Athlon should approximately represent your average Zen1 and Zen+ memory controller and its limits, whereas the 3600 is obviously much more capable in every regard and can unlock the true limits of these ram sticks. The Strix B450-I motherboard is generally regarded one of the best options for memory overclocking on Ryzen and shouldn't be the limiting factor in most cases.
The modules use memory chips by Nanya Technology, specifically their first 8Gbit die revision, A-Die. Nanya only entered the DDR4 market in 2019 and reviews of this die are scarce and hard to find. Everything I've found points towards respectable overclocking headroom, around the 3400-3800MT/s mark. Thats sufficient for Ryzen.
On my 200GE, I ended up getting these up to
There might have been more potential in those timings at lower frequency, but I stuck to 3600MT/s so I didnt really care about that.
On my Ryzen 3600, I curiously had to change the tRCDRD timing to achieve stability
Higher frequencies did boot but threw errors quickly. Not sure if I'd be able to stabilize them.
Overall I'm happy with the results of this memory kit, I ended up recommending my 3600MT/s settings to someone else on Discord and they seemed to work there as well. Can recommend.
These modules uses memory chips by SK Hynix, namely their second latest 8Gbit die revision, commonly referred to as CJR. They're great ICs, can be found on many 3600MHz 16-19-19-39 or 3600MHz 18-22-22-42 retail kits. They may have overclocking headroom between 3600CL16 and >4000MT/s CL18, from what I've seen.
They're also the same ICs as those found on ADATA VLP modules recently, from what I've gathered.
A thing to note here is that -AURMEND- got this same kit with Hynix AFR ICs. Those are inferior dies on average, usually reaching between 3200 and 3600MT/s at most. The amazon seller that I got these from also sells a 2400MT/s module, which according to the low-quality product picture and amazon user reviews contains Samsung dies (B-Die, it seems).
On my 200GE, this kit capped out at around 3333MHz. Their dual rank nature is simply too taxing for weak memory controllers.
On my Ryzen 3600, they got a lot further
I'm highly impressed with these modules, I think I got lucky. The ECC functionality doesnt appear to reduce performance and can be disabled in the BIOS.
These EUDIMMs contain Samsung C-Die chips (detected via their ...C-BCTD code on the ICs). Those are known to be some pretty bad ICs. They have low voltage tolerance and scale negatively with voltage past a certain point. They can be found on recent Corsair v4.32 3200C16 and I believe 3600C19 kits. Some reports suggest they can clock rather high with loose timings, but only at low-ish voltage.
On my 200GE, they achieved no greater than 3266MT/s at lame timings (16-17-10-20-40 IIRC)
On my Ryzen 3600, I did get to push them further
Anything between 3666 and 3800 might be stable, but demand higher voltage for tCL 16 so I stopped. 3800 had issues where it oftentimes didn't boot successfully, which could probably be stabilized with more effort, but its timings are super loose already so I won't bother.
These sticks are the worst performing ones out of the three. Based on this individual experience I wouldn't recommend them in case there are other options available.
Conclusion:
The VLP DDR4 DRAM options on the market right now appear to have respectable potential. Western users are no longer restricted to uncertain purchases from South East Asia, like it used to be until mid 2019. I wouldn't hesistate to pick V-Color modules or Crucial's CT16G4XFD8266 over the Innodisk modules.
- Kingston OC: 3600C16 or 3800C18
- V-Color OC: 3600C16, 3800C16 or 4000C18
- Innodisk OC: 3600C18
I hope this will be helpful to some. I know my testing wasn't perfectly consistent or perfectly thorough (you'd typically want to run an overnight ram test for every setting), but this should be fine in terms of giving some form of indication.
I have also decided to compile this spreadsheet for information about VLP DDR4, with reported overclocks I could find on here, on Reddit and on Discord.
I think I'm gonna sell my Innodisk modules, I'll post a trade thread some time.
I have 2x8 GB single rank purple ADATA with Hynix chips. Not the greatest compared to some of the newer options, but I updated my BIOS and tuned them all over again. Here are the results.
I haven't seen these faster than this, but I could be mistaken.
I haven't seen these faster than this, but I could be mistaken.
VLP UDIMM part catalog
Catalog of VLP UDIMM modules from Micron, providing low-profile solutions for tight spaces in personal computers
There are two variants, 2G6E1 that runs at 2666MHz and 3G2E1 that runs at 3200MHz
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This shows 3G2B2TG which I has really no idea what that (B2TG) means, and I am actually very extremely uncomfortable to buy stuff on taobao
Zooming in on the photo reveals the laser etching on the die to be "D9XPF". If they are supplying these exact modules then they are micron B-die. The 3G2 means it's 3200 MHZ and the AZ means they are unregistered. So you should be good. Results seem to vary but some have these running at 3800 C18 with tweaking. Have a googly.Yes, the 2600MHz 2G6 are much less desirable than the 3200MHz 3G2.
Things change, and look a bit different from when I bought back in July.
I bought MTA18ADF2G72AZ-3G2A1.
My pic from my build at https://pcpartpicker.com/b/4zV7YJ
I too was extremely uncomfortable buying from taobao.
I DMed several members here that had bought from them successfully and I took the leap of faith and was extremely pleased with how nice and quick the acquisition went!
The purchase experience went fairly smoothly: I bought 4 on 2021/07/07 for $367 and by 7/12 I had confirmed pictures of the coveted "D9WFL e-die", and then it cost me $22 to DHL them to me, and I got them on 7/15. $97.63 each total, overall still a lot cheaper than the $125 each price that was never going to be in stock in the US!
I don't see any MTA18ADF2G72AZ-3G2A1 available on SuperBuy anymore.
I don't know what the MTA18ADF4G72AZ-3G2B2TG are.
The only ones I see today are MTA18ADF2G72AZ-3G2E1:
I don't know what those are either.Superbuy - The Best Taobao Agent Help You Shop,Shipping From China
The best way Shop From China. Browse over 1 billion products from China's shopping platforms(taobao.com,1688.com,tmall.com). Help customers buy chinese products and shipping to gobal. Free purchase, quality inspection, photography and 90-day free storage.
Sorry.
You could always try those and when you get the confirmation picture reject them if the individual chips are not "D9WFL" e-dies.
Good luck!
Also, it's BZ, not B2.
So I found this Kingston VLP memory at CDW for $56.99 per 8GB stick.
https://www.cdw.com/product/kingston-server-premier-ddr4-module-8-gb-dimm-288-pin-3200-mhz/6401629
It seems like a good price for 3200mhz VLP memory to me. Here is the spec sheet from Kingston with the same MFG part number:
https://www.kingston.com/datasheets/KSM32RS8L_8HDR.pdf
The timing is CL22, which I think is not great, but for the price the performance will probably be fine.
I've never purchased VLP memory before so hopefully I am getting the right thing. I figure it will be easier to return to CDW if I messed up than SuperBuy in China.
If I've done something silly someone please let me know.
https://www.cdw.com/product/kingston-server-premier-ddr4-module-8-gb-dimm-288-pin-3200-mhz/6401629
It seems like a good price for 3200mhz VLP memory to me. Here is the spec sheet from Kingston with the same MFG part number:
https://www.kingston.com/datasheets/KSM32RS8L_8HDR.pdf
The timing is CL22, which I think is not great, but for the price the performance will probably be fine.
I've never purchased VLP memory before so hopefully I am getting the right thing. I figure it will be easier to return to CDW if I messed up than SuperBuy in China.
If I've done something silly someone please let me know.
