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Helpful ReplyHot!128GB of memory on X299 Dark with i9-10900X?

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ZoranC
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2020/01/01 15:08:29 (permalink)
Hi guys, I purchased X299 Dark and i9-10900X and need to populate it with 128 GB. I know I saw somewhere on this forum post that lists 32GB module tested as compatible but now I can’t find it anymore. Does anyone has that link and knows which module it is, please?
 
Also, if I am correctly interpreting specs of CPU it calls for 2933 memory speed. I’ve read somewhere that “max memory speed for i9-10900X is reduced to 2666MHz when configured with two DIMMs per channel”. If I populate all 4 memory slots on X299 Dark will I have single DIMM per channel or I will end up with two?
 
Last, but not least, requirement on this system is ultimate long term stability under any workload or its duration. It is extremely important to me so I will not be overclocking CPU nor memory. With that requirement in mind which memory manufacturer / line is considered best, most rock solid?
 
Thank you in advance!
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Cool GTX
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Re: 128GB of memory on X299 Dark with i9-10900X? 2020/01/01 15:19:33 (permalink)
This might be the Thread your looking for:  32GB memory support on EVGA motherboards

Intel i9-10900X
 
I like G.Skill RAM

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ZoranC
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Re: 128GB of memory on X299 Dark with i9-10900X? 2020/01/01 15:45:33 (permalink)
Cool GTX
This might be the Thread your looking for:  32GB memory support on EVGA motherboards

Intel i9-10900X
 
I like G.Skill RAM



Thank you! I don't think that's the thread I have in mind, one I had in mind was post by one of EVGA staff, but this is still helpful, thank you!
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Re: 128GB of memory on X299 Dark with i9-10900X? 2020/01/01 15:51:33 (permalink)
Found this in the X299 section:  https://forums.evga.com/FindPost/2996842
 
(excerpt)
 
EVGA X299 Motherboards provide these features to support the New Intel® Core™ X-Series Processors -
  • All EVGA X299 motherboards feature support for 32GB DIMMs with the latest BIOS
 
https://www.evga.com/articles/01369/intel-x299-update/
 

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ZoranC
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Re: 128GB of memory on X299 Dark with i9-10900X? 2020/01/01 16:19:57 (permalink)
Cool GTX
Found this in the X299 section:  https://forums.evga.com/FindPost/2996842
 
(excerpt)
 
EVGA X299 Motherboards provide these features to support the New Intel® Core™ X-Series Processors -
  • All EVGA X299 motherboards feature support for 32GB DIMMs with the latest BIOS
 
https://www.evga.com/articles/01369/intel-x299-update/
 




Thank you! Yes, I am confident it supports it, question is which one has been tested as compatible and if I populate all four slots am I getting single DIMM per channel (I am guessing that I am but I want to make sure).
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jasoncodispoti
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Re: 128GB of memory on X299 Dark with i9-10900X? 2020/01/01 21:56:30 (permalink) ☄ Helpfulby ZoranC 2020/01/02 16:37:17
ZoranC
Hi guys, I purchased X299 Dark and i9-10900X and need to populate it with 128 GB. I know I saw somewhere on this forum post that lists 32GB module tested as compatible but now I can’t find it anymore. Does anyone has that link and knows which module it is, please?
 
Also, if I am correctly interpreting specs of CPU it calls for 2933 memory speed. I’ve read somewhere that “max memory speed for i9-10900X is reduced to 2666MHz when configured with two DIMMs per channel”. If I populate all 4 memory slots on X299 Dark will I have single DIMM per channel or I will end up with two?
 
Last, but not least, requirement on this system is ultimate long term stability under any workload or its duration. It is extremely important to me so I will not be overclocking CPU nor memory. With that requirement in mind which memory manufacturer / line is considered best, most rock solid?
 
Thank you in advance!


 
For clarification... 

In simple terms a "DIMM" is a single memory module; AKA a single stick of RAM. The "channel" is the path that connects each memory module to the CPU and allows the two to communicate. The EVGA X299 Dark specifically supports x1 DIMM per channel and it has a total of x4 channels which means that each channel supports exactly x1 DIMM. This does not change regardless of the BIOS version installed or RAM installed on the EVGA X299 Dark. Too my knowledge all X299 CPU's support x4 memory channels with the ability for each channel to support x2 memory modules. Thus some X299 motherboards allow you to install up to x8 sticks of RAM. The EVGA X299 Dark is specifically engineered this way on purpose as having one DIMM per memory channel allows for better stability when overclocking. The new Intel Cascade Lake-X CPU's such as your i9-10900X support up to 256GB of RAM an increase from the previous max of 128GB. However in order for the CPU to support 256GB of RAM the motherboard would need to support x2 DIMMs per channel which would limit the speed of the RAM to DDR4-2666. As mentioned earlier however the EVGA X299 Dark does NOT support x2 DIMMs per channel and will instead be capable of using DDR4-2933. 
 
Regarding which memory modules are supported I would follow the "supported 32G memory list" that Tin_EE provided, link below. As a side note TiN_EE is an EVGA employee, he is actually one of the main engineers that designed the X299 Dark and a number of other EVGA products with Vince. Otherwise I would suggest submitting an official support ticket with EVGA to get your answer.    
 
Sources: 
Anandtech, https://www.anandtech.com/show/14925/intel-cascade-lakex-for-hedt-18-cores-for-under-1000
TiN_EE, https://forums.evga.com/32GB-memory-support-on-EVGA-motherboards-m3010100.aspx 
post edited by jasoncodispoti - 2020/01/01 22:05:36

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jasoncodispoti
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Re: 128GB of memory on X299 Dark with i9-10900X? 2020/01/01 22:03:55 (permalink)
Cool GTX
This might be the Thread your looking for:  32GB memory support on EVGA motherboards

Intel i9-10900X
 
I like G.Skill RAM




FYI, Unless something has changed, 4 Weeks ago TiN indicated that the GSkill DIMMs will not work on the EVGA X299 Dark. Looks like OP is going to be limited to the Corsair Vengeance LPX 32GB DIMMs. 

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ZoranC
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Re: 128GB of memory on X299 Dark with i9-10900X? 2020/01/02 17:11:11 (permalink)
3000 mhz vs 2933 on 10900X
C15 vs C16
4x32 or two 2x32?
 
jasoncodispoti
As mentioned earlier however the EVGA X299 Dark does NOT support x2 DIMMs per channel and will instead be capable of using DDR4-2933. 

 
Thank you for confirming I am interpreting things correctly and that I will be fine 😊
 
jasoncodispoti
Regarding which memory modules are supported I would follow the "supported 32G memory list" that Tin_EE provided, link below. As a side note TiN_EE is an EVGA employee, he is actually one of the main engineers that designed the X299 Dark and a number of other EVGA products with Vince.

TiN_EE, https://forums.evga.com/32GB-memory-support-on-EVGA-motherboards-m3010100.aspx 

 
Thank you! I didn’t know that Tin_EE is EVGA staff but my sentence was not meant to imply he wasn’t, just that I remember a single post (not a thread) by what I believe is someone else on EVGA staff and it wasn’t in that thread. I still can’t find that darn post but it seems Corsair Vengeance LPX is my only option so it doesn’t matter anymore.
 
Speaking of Vengeance LPX their site doesn’t offer 128 GB (4x32) kit in speed higher than 2666 while CPU is 2933. Their 64 GB (2x32) kit does. Also 64 GB kit is not listed as 2933, it is listed as 3000, and they have to options: C15 and C16.
 
Do you see anything that would cause issues when using two 64 GB 3000 MHz C15 kits in my setup?
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Re: 128GB of memory on X299 Dark with i9-10900X? 2020/01/02 17:34:32 (permalink) ☄ Helpfulby ZoranC 2020/01/02 17:46:54
ZoranC
 
...Speaking of Vengeance LPX their site doesn’t offer 128 GB (4x32) kit in speed higher than 2666 while CPU is 2933. Their 64 GB (2x32) kit does. Also 64 GB kit is not listed as 2933, it is listed as 3000, and they have to options: C15 and C16.
 
Do you see anything that would cause issues when using two 64 GB 3000 MHz C15 kits in my setup?




Yeah, I had noticed that when I was looking at it earlier... I would go with the 3000MHz C15 Kit, by default that kit is going to run at 2133MHz, you will have to enable XMP (overclock) to get the kit to run at the advertised speed of 3000MHz. That being said I cant imagine that the extra 67MHz over the 2933MHz is going to make that big of a difference in stability, but it would be easy enough to test. 

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ZoranC
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Re: 128GB of memory on X299 Dark with i9-10900X? 2020/01/02 18:05:29 (permalink)
Thank you again! So no reason two separate 64GB kits purchased at the same time would be a bad idea?
 
I too figure 3000 vs 2933 is too small of a difference to end up causing trouble. If “older” CPUs that could support “only” 128 GB at 2666 total handled 3000 then I figure i9-10900X that can handle 256GB at 2993 will likely be fine handling 128 at 3000.
 
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Re: 128GB of memory on X299 Dark with i9-10900X? 2020/01/02 18:17:05 (permalink) ☄ Helpfulby ZoranC 2020/01/02 18:37:40
Memory manufactures and some motherboard manufactures will say that you need to buy all your RAM as one tested kit... Another words you would need one single kit that included 128GB of RAM. However in my personal experience I have not ever had any issues with using RAM from different kits as long as all of the specifications match... In your case I am not sure you really have a choice as I dont think Corsair makes that RAM that TiN is suggesting that you use in a 128GB kit.... so yeah... lol.   

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ZoranC
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Re: 128GB of memory on X299 Dark with i9-10900X? 2020/01/02 18:37:52 (permalink)
jasoncodispoti
Memory manufactures and some motherboard manufactures will say that you need to buy all your RAM as one tested kit... Another words you would need one single kit that included 128GB of RAM. However in my personal experience I have not ever had any issues with using RAM from different kits as long as all of the specifications match... In your case I am not sure you really have a choice as I dont think Corsair makes that RAM that TiN is suggesting that you use in a 128GB kit.... so yeah... lol.   



Thank you again! I understand why they would say that and why in some situations that might be the case but I figure in majority of situations that would be actually against design that is supposed to make things work together. And my likelihood of being fine should be higher by ordering them both at the same time straight from Corsair.
 
So I just pressed ‘buy’ button, 128 GB here I come, fingers crossed …
 
Now I just need to figure out which M.2 2280 to go for and I should be ready to start putting it together.
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Re: 128GB of memory on X299 Dark with i9-10900X? 2020/02/06 19:01:12 (permalink)
Ignore. Can be deleted. 

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ZoranC
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Re: 128GB of memory on X299 Dark with i9-10900X? 2020/02/06 19:32:20 (permalink)
Quick update now that Jason has bumped the thread: My X299 Dark didn't have problem recognizing 128GB. I didn't do stress test yet but I am getting closer to that point.
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Re: 128GB of memory on X299 Dark with i9-10900X? 2020/02/06 21:21:24 (permalink)
LOL, I thought I was replying to one thread and after I posted realized that I was on the wrong thread. Thanks for the update on the RAM! Can you post links to the RAM that you ended up purchasing in case someone else comes along looking at this?  

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ZoranC
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Re: 128GB of memory on X299 Dark with i9-10900X? 2020/02/06 21:42:43 (permalink)
jasoncodispoti
LOL, I thought I was replying to one thread and after I posted realized that I was on the wrong thread. Thanks for the update on the RAM! Can you post links to the RAM that you ended up purchasing in case someone else comes along looking at this?  



I've purchased qty 2 of this: https://www.corsair.com/us/en/Categories/Products/Memory/VENGEANCE-LPX/p/CMK64GX4M2C3000C15
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Re: 128GB of memory on X299 Dark with i9-10900X? 2020/02/07 22:09:11 (permalink) ☄ Helpfulby ZoranC 2020/02/07 22:55:17
To clarify - G.SKILL DC DIMMs are not compatible with Dark boards. Those are poor overclockers anyways. That however does NOT mean that proper G.SKILL 16Gbit-based 32GB modules will not work, these will be fine and 128GB capacity is supported with such modules.

If you have question, please post in public forum. I do not reply PMs, so all in community can benefit the answer. 
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ZoranC
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Re: 128GB of memory on X299 Dark with i9-10900X? 2020/02/09 13:39:55 (permalink)
MemTest86 returned errors within minutes :( Now I am repeating test with only first two slots populated.
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Re: 128GB of memory on X299 Dark with i9-10900X? 2020/02/09 13:44:41 (permalink)
May have to change the timing (increase numbers) to allow these 2 sets to work together

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Re: 128GB of memory on X299 Dark with i9-10900X? 2020/02/09 13:56:59 (permalink)
Cool GTX
May have to change the timing (increase numbers) to allow these 2 sets to work together



That is one of reasons why I am now testing only one set at the time, to try to figure out is one kit defective or it is me trying to use two or something else.
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ZoranC
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Re: 128GB of memory on X299 Dark with i9-10900X? 2020/02/11 20:26:33 (permalink)
Four passes (~ 11 hours) of MemTest86 on first set of 2x32GB (serial numbers *121 and *122) in slots 1 and 2 didn’t return a single error.
 
Attempt to do MemTest86 on second set of 2x32GB (serial numbers *165 and *166) in slots 3 and 4 returned errors within minutes.
 
Four passes (~ 11 hours) of MemTest86 on first set of 2x32GB in slots 3 and 4 didn’t return a single error.
 
Attempt to do MemTest86 on second set of 2x32GB in slots 1 and 2 returned errors within minutes.
 
Four passes of MemTest86 on stick with serial number *165 from set # 2 in slot 2 didn’t return a single error.
 
Attempt to do MemTest86 on stick with serial number *166 from set # 2 in slot 2 returned errors within minutes for a total of 48 errors by the time test (4 passes) completed.
 
This makes me feel I’ve eliminated incompatibility/timings, memory controller, and memory slots as possible culprit and that everything indicates stick with serial number *166 from set # 2 is bad.
 
Which made me think what I want to do about it. Yes, I can go through RMA, replace set # 2 and try again but whole experience left me in no mood to deal with another possible setback, like finding that two working sets will play along fine once combined.
 
Before I found out memory I received is bad I’ve decided to build one more system based on X299 Dark and was planning for “only” 64 GB in it but after this I have changed game plan and ordered single Corsair 256 GB -3200 C16 kit:
 
https://www.corsair.com/us/en/Categories/Products/Memory/VENGEANCE-LPX/p/CMK256GX4M8E3200C16
 
Logic (of uneducated layman) behind it is:
 
  1. If Corsair believes whole 256 GB kit should work fine in 8 slot mb with all slots populated then I shouldn’t have concerns will half of it work fine in 4 slot mb with all slots populated, compatibility of sticks and timings would be already good enough (correct?)
  2. Even though I was avoiding going beyond Cascade Lake X’ call for 2933 MHz DDR4 3200 MHz shouldn’t be an issue.
  3. Going from CL15 @ 3000 MHz to CL16 @ 3200 MHz shouldn’t result in any performance drop memory wise, it should end up in practical wash (correct?)
  4. If all of that is correct then getting one 256 GB kit would give me two 128 GB “kits”, one for each system, -AND- a peace of mind.
 
Of course, unless bad luck strikes again and I again end up with bad memory stick in what is brand new kit purchased straight from Corsair.
 
Which makes me wonder: How is me ending up with bad memory in what is brand new kit purchased straight from Corsair even possible? Granted I know nothing about memory manufacturing but I was under impression nowadays kits undergo stringent quality control before they are sent to the market, stick with issue that is easily and quickly reproducible shouldn’t be able to slip undetected through them?
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ZoranC
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Re: 128GB of memory on X299 Dark with i9-10900X? 2020/02/15 19:12:26 (permalink)
Well, my 256 GB (8 x 32 GB) of CL16 3200 MHz Corsair kit arrived yesterday and I tried it today by installing four of its 32 GB modules into my X299 Dark.
 
I have immediately faced issues. First mb couldn’t post ( it didn’t even offer that “memory has changed, do you want to enter BIOS” and POST LED showed EE error code), so I cleared CMOS which let me enter BIOS.
 
Once in BIOS I’ve selected XMP Profile, saved settings and restarted. PC booted into Windows but started crashing within minutes on its own without anything being done with it. And then it would crash again. And again and again and again. And when it wasn’t crashing it was not functioning correctly either (sometimes USB keyboard wouldn’t work, sometimes it would recognize USB stick …).
 
After that I’ve put memory settings to ‘Auto’ (making memory clock 2133 MHz) which seemed to work fine (but I didn’t test it extensively). Then I tried to use XMP again but 2933 MHz and while I didn’t experience any immediate issues I felt I have experienced few oddities that indicate I would have to test memory extensively at that setting before I can trust it.
 
In other words: As of now I am still unable to use 32 GB sticks to get 128 GB on X299 Dark 
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Re: 128GB of memory on X299 Dark with i9-10900X? 2020/02/16 04:31:37 (permalink)
ZoranC 
It’s sad to read such news. Who's guilty? Try different options and keep us updated on how to solve this problem. Good luck =)

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Re: 128GB of memory on X299 Dark with i9-10900X? 2020/02/16 06:27:01 (permalink)
I would try this...
 
- Clear the CMOS on the X299 Dark 
- Install one stick of RAM into the PC and reboot (repeat this process until all of the sticks of RAM are installed) 
 
Side Notes: 
- Dont use any overclocks; disable all overlocks and set everything to default in the BIOS this includes not using XMP
- It is possible that you have bad memory... one bad stick is all it takes. 

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ZoranC
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Re: 128GB of memory on X299 Dark with i9-10900X? 2020/02/16 19:06:12 (permalink)
jasoncodispoti
I would try this...

 
Hi Jason, first I want to thank you for your constant help, it is very much appreciated :)
 
jasoncodispoti
Install one stick of RAM into the PC and reboot (repeat this process until all of the sticks of RAM are installed) 

 
Could you please educate me how this would help instead of installing them all at the same time?
 
jasoncodispoti
It is possible that you have bad memory... one bad stick is all it takes.

 
I’ve already tried to rule that out before previous post. When first 4 sticks out of 8 in the kit showed immediate instability  I’ve tried second 4 and they too immediately showed instability when using XMP.
 
jasoncodispoti
Dont use any overclocks; disable all overlocks and set everything to default in the BIOS this includes not using XMP

 
I’m not overclocking CPU in any way, it is all left at default (at least I don’t think I am, I will DM you separately on that in order not to derail this thread).
 
When it comes to memory overclocking, I didn’t have problem running MemTest86 for hours on the end using XMP with 2 or 3 sticks from first kit I bought (CL15 3000 MHz). Second kit (CL16 3200 MHz) had immediate stability problems using XMP that seemed to completely go away when running at default 2133 MHz and (this one needs double checking) when using XMP and manually setting memory frequency to 2933 MHz.
 
Which makes me wonder could it be that memory controller on my CPU can’t handle 3200 MHz sticks at full speed?
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ZoranC
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Re: 128GB of memory on X299 Dark with i9-10900X? 2020/02/21 19:52:25 (permalink)
My -THIRD- memory kit arrived. It too is showing errors within minutes when trying to use all 4 sticks. Now I am testing 2 sticks at the time to see did I again get bad stick.
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Re: 128GB of memory on X299 Dark with i9-10900X? 2020/02/21 20:03:52 (permalink)
ZoranC
Which makes me wonder could it be that memory controller on my CPU can’t handle 3200 MHz sticks at full speed?

Very possible.

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#27
ZoranC
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Re: 128GB of memory on X299 Dark with i9-10900X? 2020/02/21 20:06:30 (permalink)
Sajin
ZoranC
Which makes me wonder could it be that memory controller on my CPU can’t handle 3200 MHz sticks at full speed?

Very possible.



Second kit was 3200 MHz. For that one I came to conclusion it just isn't compatible. Third kit is exactly same part I ordered first time that arrived with one bad stick.
#28
ZoranC
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Re: 128GB of memory on X299 Dark with i9-10900X? 2020/02/22 08:32:59 (permalink)
One half of the kit (just 2 sticks in slots 2 and 4 for total of 64 GB) failed MemTest86. Now I am testing other 2.
#29
RainStryke
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Re: 128GB of memory on X299 Dark with i9-10900X? 2020/02/22 09:23:28 (permalink)
I would recommend this kit:
https://www.newegg.com/g-skill-128gb-288-pin-ddr4-sdram/p/N82E16820232587
 
The XMP profile is approved per the QVL list for your motherboard: Source

Main PC|CPU: Intel i9 9900KS|CPU Cooler:EK-Momentum Z390 Aorus|Motherboard:Gigabyte Aorus Z390 Master|GPU:NVIDIA RTX 2080 Ti with EKWB Vector|Monitor:Dell S2716DG|RAM:32GB G.Skill Trident Z Royal 4000MHz CL18|PSU:Seasonic X-1250|SSD:Samsung EVO 970 1TB|Case:Lian Li PC-011 with EKWB Distro Plate|Fans:Cougar Vortex CF-V12HPB x9|Radiators:Corsair XR5 360MM x3|Pump/Reservoir:EKWB EK-XRES 140 Revo D5 RGB PWM
#30
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