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[OP]
Deal Addict
Oct 20, 2005
1157 posts
361 upvotes

DDR4-2666 at 1.2V?

Recently picked up a Lenovo Desktop computer for work: ThinkCentre M75s

AMD® Ryzen™ 5 PRO 3600 Processor (3.60 GHz, up to 4.20 GHz Max Boost, 6 Cores, 12 Threads, 32 MB Cache)
Windows 10 Pro 64
4 GB DDR4 2666MHz

Since this is probably a locked motherboard where we can't tune the memory settings, When can I purchase 2x8GB kit of ram that operates at 2666MHz?

Do they even exist? All the DDR3-3000/3200 Kits requires XMP 1.35V but i suspect this desktop won't support this voltage but only 1.2V kits
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9 replies
Deal Addict
Dec 29, 2013
1279 posts
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Montr
I bought a DDR4-3000 @ 1.35V and run it at 2666 @ 1.2V
Search for adata kit on amazon. It’s cheap
[OP]
Deal Addict
Oct 20, 2005
1157 posts
361 upvotes
Specs based on corsair website:

SPD Latency 15-15-15-36
SPD Speed 2133MHz
SPD Voltage 1.2V

Speed Rating PC4-21300 (2666MHz)
Compatibility Intel 100 Series,Intel 200 Series,Intel 300 Series,Intel 400 Series,Intel X299
Heat Spreader Anodized Aluminum
Package Memory Format DIMM
Performance Profile XMP 2.0
Package Memory Pin 288

Doesn't XMP usually bump up the voltage to 1.35V?
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Deal Guru
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Nov 27, 2005
12161 posts
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Richmond Hill
Mike^ wrote: Doesn't XMP usually bump up the voltage to 1.35V?
Sometimes, but not necessarily. In this case - no.
[OP]
Deal Addict
Oct 20, 2005
1157 posts
361 upvotes
board123 wrote: Sometimes, but not necessarily. In this case - no.
Did some research:
https://forums.tomshardware.com/threads ... 8.3371365/

Looks like CPU-Z reports JEDEC to be2133mhz. (1069.8mhz) - multiple that by 2 for dual channel.

It seems so difficult to find JEDEC 2666mhz.
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[OP]
Deal Addict
Oct 20, 2005
1157 posts
361 upvotes
Desperadude wrote: I bought a DDR4-3000 @ 1.35V and run it at 2666 @ 1.2V
Search for adata kit on amazon. It’s cheap
This seems like an option but would rather go Corsair / Kingston etc
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Happy Zoomer Wireless User | $40.50 - 6GB LTE Data | Good Deal +$50 Credit
Deal Guru
User avatar
Nov 27, 2005
12161 posts
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Richmond Hill
You're making this far more complicated than it needs to be. Buy any memory kit, plug it in, and it will work fine.
Sr. Member
Jun 13, 2009
984 posts
724 upvotes
Toronto
Find the mobo model number. Every mobo has a list of recommended memory modules that you can check out, similar to this one. I usually stick to the recommended modules in these lists. The lists are usually long, so you are bound to find something within your specs and price point.

Check the support page of the mobo to find the list. It is usually named something like qualified memory module list.

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