this post was submitted on 10 Jan 2024
3 points (61.5% liked)

Technology

34894 readers
538 users here now

This is the official technology community of Lemmy.ml for all news related to creation and use of technology, and to facilitate civil, meaningful discussion around it.

Ask in DM before posting product reviews or ads. All such posts otherwise are subject to removal.

Rules:

1: All Lemmy rules apply

2: Do not post low effort posts

3: NEVER post naziped*gore stuff

4: Always post article URLs or their archived version URLs as sources, NOT screenshots. Help the blind users.

5: personal rants of Big Tech CEOs like Elon Musk are unwelcome (does not include posts about their companies affecting wide range of people)

6: no advertisement posts unless verified as legitimate and non-exploitative/non-consumerist

7: crypto related posts, unless essential, are disallowed

founded 5 years ago
MODERATORS
MinutePhrase@lemmy.ml
3
Question on RAM compatability (lemmy.ml)
submitted 10 months ago* (last edited 10 months ago) by cyberwolfie@lemmy.ml to c/technology@lemmy.ml
4 comments fedilink hide all child comments
 

I just ordered a barebones Minisforum UM690S and am currently trying to find some RAM-chips and an SSD to put in it, but apparently these RAM-chips were a bit more complicated than I had imagined.

It runs an AMD Ryzen 9 6900HX, which on its site says it supports DDR5-RAM up to 4800 MHz. On the Minisforum spec page, it also says that it uses the SODIMM form factor.

So my questions:

  1. Am I bound to 4800 MHz? Could I go for 5600 MHz and accept that I won't get to utilize the full power? Minisforum sales rep says I should get 4800 MHz, but I've also read that higher is OK, it is just wasted. In my case, I can get 5600 MHz cheaper.
  2. The sales rep also specifically stated CL40. I can't see that elsewhere, neither on the AMD-site nor Minisforums spec page. From my preferred retailer, I can either get 4800 MHz with CL38, or 5600 MHz with CL40. But not the stated combo of 4800 MHz and CL40. What are my choices here?

The specific chips I am considering are the Kingston FURY Impact-chips:

  • Kingston FURY Impact DDR5 4800MHz 32GB, CL38 (38-38-38)
  • Kingston FURY Impact DDR5 5600MHz 32GB , CL40

I am lost 🫠

top 4 comments
sorted by: hot top controversial new old
[–] hperrin@lemmy.world 6 points 10 months ago* (last edited 10 months ago) (1 children)

Get whichever of those two is cheaper, because they both will work. The rated specs are the maximum/minimum. 5600MHz sticks will run at 4800MHz just fine. And CL38 sticks will run at CL40 just fine.

After selecting their XMP profiles in the BIOS, you can either try booting and see if it’s stable at their max speeds, or lower the corresponding thing to the max the CPU says is ok.

Btw, if it’s not stable at all at max speeds, and you can’t get back into BIOS, just reboot it like 5 or 6 times and the BIOS should reset.

[–] cyberwolfie@lemmy.ml 2 points 10 months ago (1 children)

They also said that XMP is not supported - does that change anything?

[–] hperrin@lemmy.world 3 points 10 months ago (1 children)

If XMP is not supported, then it will run at the DDR5 base profile, so still either one will work.

[–] cyberwolfie@lemmy.ml 2 points 10 months ago

Perfect, thanks!