128GB Memory for Zenith Extreme + Threadripper

eco_bach · Dec 18, 2017

Asus Zenith Extreme
AMD 1950x CPU

Am running BIOS 801 for stability, though just checked and it seems the latest 'official' is 804.

Considering purchase of new 128GB DIMM kit

1- Is it possible to reach 3200Mhz or higher with 128GB RAM?
2- Any specific recommendations other than the preferred vendor list? I've heard good things about G.SKILL Flare X.

Posts like the following suggest its problematic getting 128GB RAM to work at ANY speed, hence my apprehension!
https://rog.asus.com/forum/showthread.php?95601-Zenith-Extreme-1950x-and-128GB-RAM-Wont-post!

Apparently AMD Ryzen does NOT offer memory dividers for either 3000Mhz or 3400Mhz. Perhaps that was the issue?
https://youtu.be/sLm57m_bKb8?t=373

Thanks in advance for any feedback and or recommendations!

vapour · Dec 18, 2017

PCPartPicker part list / Price breakdown by merchant

CPU: AMD - Threadripper 1950X 3.4GHz 16-Core Processor ($899.00 @ Amazon)
CPU Cooler: Enermax - LiqTech TR4 360 102.2 CFM Liquid CPU Cooler ($149.99 @ Newegg)
Motherboard: Asus - ROG ZENITH EXTREME EATX TR4 Motherboard ($487.79 @ OutletPC)
Memory: G.Skill - Trident Z 128GB (8 x 16GB) DDR4-3200 Memory ($2114.99 @ Newegg)
Total: $3651.77
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-12-18 16:51 EST-0500

Possible 3200, this is the only G.Skill I can find. Not sure if flare has it or not.

bjornl · Dec 18, 2017

I'm doing a couple of threadripper builds. After a fair bit of research, I settled on the following:

PCPartPicker part list / Price breakdown by merchant
CPU: AMD - Threadripper 1950X 3.4GHz 16-Core Processor ($899.00 @ Amazon)
CPU Cooler: Noctua - NH-U14S TR4-SP3 140.2 CFM CPU Cooler ($79.90 @ Amazon)
Motherboard: Gigabyte - X399 AORUS Gaming 7 ATX TR4 Motherboard ($382.89 @ OutletPC)
Memory: Corsair - Vengeance LPX 64GB (4 x 16GB) DDR4-3200 Memory ($909.99 @ Corsair)
Memory: Corsair - Vengeance LPX 64GB (4 x 16GB) DDR4-3200 Memory ($909.99 @ Corsair)
Total: $3181.77

Actual ram (not on PC partspicker):
https://www.newegg.com/Product/Product.aspx?Item=N82E16820236052&cm_re=corsair_vengeance_lpx_3200-_-20-236-052-_-Product

The LPX modules are low (better for cooling and cooler positioning) and use samsung chips (which I trust more than most). I think we'll get to 3200, but I am not sure yet since so far the ram and the cases have yet to arrive.

vapour · Dec 18, 2017

I won't buy that two packs, may or may not work together. Buy from a single pack is safer. Some have reported more issues with Corsair than G. Skill for AMD to run 3000+. Air is not strong enough for heavy overclocking due to heat is harder to dissipate for threadripper, you will need that Enermax AIO to do so. I don't recommend above setup.

bjornl · Dec 19, 2017

vapour :

I didn't buy two kits follow the link to the actual ram. It was as close as partspicker had to what I bought.
As for needing the AIO, nope. Google how good that Noctua is, before you talk smack about it.

Also the presumption that he would sell his current build to buy mine, is a bit much. He presumably only wants to add ram since he talks about his current system including his current bios version.

As for your blessing on my build, I do not care. Unlike you, I did my research and bought two of these. Which is two more than you've built.

My comment was for the OP and which ram I selected.

vapour · Dec 19, 2017

@ bjornl

I guess your research only looked at Noctua TR4 cooler vs regular AIO, but above Enermax is designed for TR4 only and is much better than regular AIO in terms of TR4 cooling. Read below and if you still think Noctua is fine, then enjoy, just don't overclock too much. BTW, your build is misleading, you can add custom part, i.e., the ram on pcpartpicker, instead of posting irrelevant 2 packs of ram.

@ OP

Here is the comparison between Enermax and Noctua: https://www.gamersnexus.net/guides/3089-threadripper-cooler-comparison-full-coverage-liquid-vs-air

remember the thermal throttling is 68 degree on threadripper, if you want serious overclocking, enermax is your only good choice at the moment.

eco_bach · Dec 19, 2017

OP, thanks for sharing. Please let us know if you can get to 3200 with the Corsair kit. Wondering if its a better choice than this officiallly AMD supported G.SKILL 2933 kit?
https://www.gskill.com/en/product/f4-2933c14q2-128gfx

eco_bach · Dec 19, 2017

vapour :

Thanks. I've seen that memory kit recommended elsewhere. But can it reach 3200? Most comments seem to indicate 3200 with 128GB ram is next to impossible. And wondering if its a better choice than the 'officially' supported 2933 FlareX kit?

Also on NewEgg the TridentZ 3200 kit is listed as being Intel X99 compatible.

https://www.gskill.com/en/product/f4-2933c14q2-128gfx

vapour · Dec 19, 2017

eco_bach :

that x99 is just old advertisement... It will be supported on X399.

Some reported the ram can run 2933 on taichi. With more AEGSA bios update, it should be able to run 3200 in the near future and ASROCK is quick releasing their BIOS update. I recommend still getting 3200. OC 2933 ram to run 3200 will be much harder.

bjornl · Dec 19, 2017

eco_bach :

Assuming you're still in the market when I get the rest of the parts, I'll keep you informed. It may be after christmas based on current shipping times. I've got the OS, ram, CPU, MB and PSU, rest is delayed. I've used this ram in other builds (Intel) and have had no problems hitting 3200 or above with this ram on those builds.

bjornl · Dec 19, 2017

vapour :

My build is not misleading. I said quite clearly what I used. Not my fault you skimmed looking to be a contrarian.

The Enermax 360 varient might or might not be better than a NH-u14S. But the air cooler doesn't have an integrated pump (which are prone to surprise failure). It is a far smaller package and easier to find cases with 165mm width than one which can accommodate a 360mm radiator + the fans.

As for overclocking, the Noctua does just fine.

https://www.youtube.com/watch?v=Exzg2UQlbHA

And bottom line you are still just throwing noise in to a conversation which was about RAM not a cooler, which the OP already has.

vapour · Dec 19, 2017

bjornl :

Yeah, you hand picked some nobody from Youtube instead of utilizing GamerNexus review, this already tells everything, enjoy your build, but don't mislead potential buyer. Vapour out.

Darkbreeze · Dec 20, 2017

Apparently you don't even know when you've already been badly spanked, and you have. Soundly.

The NH-U14S has been shown to perform ALMOST as well as the D14 and D15 coolers and some reviews have shown it perform better. And that's the regular one. The one he has includes a wider base and performs even better. I ASSURE you that you haven't the faintest idea what you're talking about. You know paper specs and copy pasta, that's about it. I've told you this before. I'm telling you this again. Unless know what you're talking about and can back it up with hard facts, then quit contradicting members who clearly DO know what they are talking about, and shut the front door.

If you want me to go get those reviews, I will, but when I do, I'm probably not going to be very nice about it. So maybe, chill your tone, because you won't win.

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