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QVL - Myth, Legend, Marketing/Advertising, what is your take?

Importance of QVL

  • QVL is the only way to go.

    Votes: 0 0.0%

  • Total voters
    67

freeagent

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If you are going to use mainstream chips, best to go with popular chip brands.. they are popular for a reason.. usually because they work well :D

Each DDR gen has chips that are awesome and then you have midrange, and gutter end. Avoid the gutter and aim middle and higher..

B-Die, Hypers, and BBSE.. D9 never lasted for me.. tried them all lol.. except the top..

DDR5 is unknow territory for me right now.. not even worried, though I probably should be lol
 
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@lilhasselhoffer
i dont care to read between the lines, type something or dont.
otherwise its assumptions i have to make, likely to be incorrect.

@DirtyDingusMcgee
but then you usually dont care much about speed (above sweetspot), and more about things like EEC.

You...are...not...reading...so...why....should...I...care?

Let me be more abrupt, you are incapable of understanding words, and read your own alternative meaning into them. Cool, you just get put on my "bad faith actor" list internally, and I let you have the win you want to have. It's stupid, but the much stupider thing would be for me to try and make you understand that words have a meaning, so fine. I'm not a masochist, so have that wonderful phyric victory. Waldorf, the puppet/muppet, would me proud.



I'll have to just laugh at what I think is an appropriate exchange between Statler and Woldorf.
S: Is your hearing aid fixed?
W: No.
S: Then how do you know what I'm saying?
W: I don't!
S: Oh. (does double take)

Also...let's end with a math check. What is 2500? Well, over the course of Q4 2019 to Q4 2024, the average PC sales is about 70 million (source). I'm going to give you the benefit of doubt, and suggest 2500 per quarter is what you pulled from thin air as "statistically significant." That's about 0.0036% of the entirety of all PC sales...and making any conclusion as 100% factual from that is silly.
Why then suggest about 36 as a discussion point? That seems like a complete load...until you consider most people building that many are not building a bespoke product. Too few to be volume, too many to be niche, so the most likely situation here is outfitting a bunch of similar PCs for a deployment. That means the same hardware, purchased in bulk, from likely stable sources. That's still not a great statistical slice, but it could give you a view on some aspects worth talking about.
It's almost like having to deal with this crap on a regular basis gives you an appreciation for how little some things are controlled, and how much goes into what sound like it might not be complex. I mean, a QVL tests memory sticks on a platform that introduces variation, with a CPU that introduces variation...thus meaning a QVL is not a guarantee but proof they checked some units with some hardware. Given this isn't exactly full blown six-sigma level analysis, you only get what you pay for. Motherboards don't cost a grand...mostly...so the expectation is equally low in that the QVL is a check but not a warranty or guarantee. That lack of explicit or implied performance should be enough to tell a reasonable person that it is not anything special, which is something which might escape you if the difference between anecdote being personal experience and fact being something borne out of statistically significant samples is something you want to fight over.



Alternatively, 2500 over 5 years is about 0.00018% of the sample...or 1 in 560,000 units. That's...wow. It's like saying grabbing a cheap Bestbuy floor model will give you insight into a Falcon Northwest PC...which should let you know how outlandish that is. ShrimpBrime got it right in saying that a few million examples would definitely give us a clue...but your umbrage is kinda fun to see. Not useful, but fun in that sort of way a car wreck is interesting.
 

TheLostSwede

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I ignore them and have no problem with many builds.

But I usually use ECC RAM, so obeying to them would be easier said than done even if I wanted to.

Many QVLs don't even have sets on there to reach is stated max capacity.
You are aware that ECC RAM makes no difference unless it's supported by the motherboard, right?
Most motherboards don't support ECC RAM, even if the CPU might.
 
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If you are going to use mainstream chips, best to go with popular chip brands.. they are popular for a reason.. usually because they work well :D

Each DDR gen has chips that are awesome and then you have midrange, and gutter end. Avoid the gutter and aim middle and higher..

B-Die, Hypers, and BBSE.. D9 never lasted for me.. tried them all lol.. except the top..

DDR5 is unknow territory for me right now.. not even worried, though I probably should be lol
Had some old Corsair XMS Xpert (ddr1) that was killer fast. 290mhz at Cl2-2-2-5. Hopefully the person I sent to can utilize it well.

I don't recall, but I used that memory across at least 3 boards. Shines really well on Socket A. For some reason, those old chips had outstanding memory controllers on board.

Can't say that XMS wasn't my favorite DDR kit without screen shots, but maybe another time.

DDR5 is no different than any other ddr version. Some are good fast kits, others not so much.

It looks like the QVL list for people actually really helps them build a finely tuned machine, without the tuning . And that is a niche for you and I perhaps, not the rest of the people.
 
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Through a couple of previous threads, a discussion popped up about the value of a RAM QVL from either the RAM makers or the motherboard makers when building a system.

Rather than to clog up other threads, lets have an educated conversation and see of we can come to a consensus of its merrits.



One side of the coin is it is the definite guide to what RAM to pick, whether that specific model number, or one with the same specs from another maker.

Another side is that the QVL is more or less a list of RAM that the big boys in the industry push to the world to ensure they are listed on a guide, more as advertising, less as an important guide.

As always, parts choice does matter. It is not as broad as I would like it to be saying QVL is completely useless. I also added a poll.
QVL at least gives you a list of what the manufacturer tested that at least worked at the time they tested it.

Some caveats to the QVL
- You don't know exactly under what conditions or settings they validated the ram so there could be some variability to the user experience trying to use the same parts.
- RAM vendors might swap chips over time without changing model numbers making the list useless or inaccurate
- UEFI updates might change outcomes and break previously stated overclocking support

Those were just some thoughts.
 
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