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Are these ECC memories even compatible with these motherboards?

I'm using Asus Z10PE D8WS and Asus Z10PE D16 WS. And I'm looking at ECC DDR4 Server memories for my motherboards, which I found two models that I got offer from internet. The seller offer me really cheap price. But I have no clue if they are compatible with my motherboards.

They are Samsung memories, models are as follow.
M386A4G40DM0-CPB2Q 
M393A4K40BB1-CRC4Q

I couldn't find them listed  on Asus QV page, I have contacted Asus by email, but they have no clue and keep copy pasta this QV list to me. I can't reach samsung support either since I haven't purchased their products.

Here is the qualified vendor list for this motherboard.

http://dlcdnet.asus.com/pub/ASUS/mb/Socket2011-R3/Z10PE-D8_WS/QVL/Z10PE-D8_WS_Memory_QVL_161212.pdf?_ga=1.119573440.914046702.1487920718

I notice that they have

M386A4G40DM0-CPB
M393A4K40BB1-CRC

Listed but I'm not sure if they are identical, I have no idea with "2Q" and "4Q" really mean.

Anyway, thank you for visiting this thread. I hope that I will get some help here. 
Thanks!!!

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ECC-RAM will work in any board that supports the correct unbuffered or buffered/registered DIMMs. You won't have access to ECC functionality [if the chipset doesn't support it], but the RAM itself will work as intended otherwise.

 

Edit: I tried to find out what 2Q or 4Q meant, but found nothing. 

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To be honest, finding a cheap DDR4 ECC stick for my motherboard is like having a cancer.

 

If anyone knows a good source where I can grab some cheap sticks that are listed in that QV page. Please let me know.

 

Thanks.

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