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Memory controller sucks on new i9 9900K!

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post #41 of 83 (permalink) Old 03-14-2019, 10:25 AM
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Quote: Originally Posted by tatmMRKIV View Post
He's also been going on and on about just ordering G.Skill 4600 because he has to have "the best and fastestest memy-ries"

(clearly not a vast wealth of overclocking knowledge)
Hi,
There have been many 9900k lottery loosers so it's not all that uncommon to get a dud
Haven't seen many other clocks the op has done too lazy to search

But yes 4600 is a wild direction seems a newer board for cpu would be in order too and just leave the 8700k in this one :/

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post #42 of 83 (permalink) Old 03-14-2019, 11:56 AM - Thread Starter
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Well i'm at a loss on WṬF to do. As I said before, no matter the System Agent/VCCIO voltage my system will not successfully post with anything higher than 4000MHz. Hell, i'm not even overclocking the CPU core clock, it's stock. And there's no upgrading to the Z390 right now as the motherboard I want "XI Apex" doesn't exist in the USA right now.

Last edited by lumbeechief; 03-14-2019 at 01:41 PM.
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post #43 of 83 (permalink) Old 03-14-2019, 12:08 PM - Thread Starter
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I wasted my whole yesterday trying to get this too work. This is so discouraging. Intel/AMD should just bin all CPUs or make the official stock speed of the IMC MORE THAN 2666MHz. They know there are ram modules higher than 2666MHz, they know this. Maybe if the Federal Trade Commission/European Commission gets involved this wouldn't be happening. It's anti consumer knowing that customers are buying expensive $400 memory kits and not getting those advertised speeds set by the Qualified Vendor List of the motherboard vendor. Heck, on top of this i wasted over 30 minutes with ASUS on the phone only to hang up because the person never took me off of hold.

Last edited by superhead91; 03-15-2019 at 12:41 PM.
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post #44 of 83 (permalink) Old 03-14-2019, 01:38 PM
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High speed ram is a crap shoot. That is just the way it is, and the way it has been for years. Maybe you have just been lucky in the past. My g.skill 4400 18-19-19-39 ram will not run at XMP profile with my 9900k on a EVGA z390 Dark at any safe dimm, sa, or io voltage. But, it does run 4200 17-17-17-37 at reasonable voltage.

There are no guarantees when running memory this fast even if it is on the QVL list. Deal with it, or buy slower ram.

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post #45 of 83 (permalink) Old 03-14-2019, 02:37 PM
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Quote: Originally Posted by TahoeDust View Post
High speed ram is a crap shoot. That is just the way it is, and the way it has been for years. Maybe you have just been lucky in the past. My g.skill 4400 18-19-19-39 ram will not run at XMP profile with my 9900k on a EVGA z390 Black at any safe dimm, sa, or io voltage. But, it does run 4200 17-17-17-37 at reasonable voltage.

There are no guarantees when running memory this fast. Deal with it, or buy slower ram.
This.

Also if you look at any QVL list or spec sheet listing RAM compatibility you will ALWAYS find a disclaimer stating that no guarantees are made for any speeds above the DDR4 standard (2666). Most kits in the popular low-mid 3xxx range rarely have issues running at their advertised overclock on a variety of hardware, but once you get into 4000+ territory it's going to be much more variable from kit to kit with different MB's and CPU's. It isn't uncommon for XMP profiles to not work out of the box with auto settings at those speeds. If you're dropping that much money on RAM that fast you should really know what you're doing so you can manually adjust the timings and settings for the lowest possible latency. You have no justification to complain about this. Your RAM works fine, albeit at a very slightly lower overclock than you were able to run previously in a different hardware configuration. You can probably even get back to that overclock with some work on timings/sub-timings and other RAM settings; it just may not be as plug and play as before. If you want it to be easy, just get a cheaper DDR4 3600 kit and enable XMP.
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post #46 of 83 (permalink) Old 03-14-2019, 02:53 PM
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Quote: Originally Posted by lumbeechief View Post
I wasted my whole yesterday trying to get this too work. This is so discouraging. Intel/AMD should just bin all CPUs or make the official stock speed of the IMC MORE THAN 2666MHz. They know there are ram modules higher than 2666MHz, they know this. Maybe if the Federal Trade Commission/European Commission gets involved this wouldn't be happening. It's anti consumer knowing that customers are buying expensive $400 memory kits and not getting those advertised speeds set by the Qualified Vendor List of the motherboard vendor. Heck, on top of this i wasted over 30 minutes with ASUS on the phone only to hang up because the person never took me off of hold.
There's been a lot of flaming and toxicity in this thread and I would hate for a mod to have to come start cleaning stuff up again. People get triggered on these forums over anything that doesn't conform to their standards.
That being said, memory controllers *ARE* a crap shoot. I've been around awhile and i've seen posts where one person had a CPU which would clock the RAM high, and another CPU sample by the same person which crapped out there. It happens. It's a silicon lottery, ever since the memory controller got moved onto the CPU.

First of all, common sense prevails here.
A "9th gen" CPU does need a Z390 board to work best on. It doesn't matter "why"...bios shenanigans, planned obsolescence, QVL, whatever you want to call it, it simply does NOT matter. What matters is you do your research and conform and make smart decisions, or you just bend over and take it. That's the price you pay for this hobby. Unless you're in bed with a bios engineer, you have no leeway or anything.

Second: if you want to clock highest, you need a board which is designed for it. In that case, a Z390 Apex or Code or another 2 slot dimm board. I'm not talking about the z370 versions here either.
Third: even with that, the CPU can hold you back. This is a fact. You are right that the chips are designed for 2400 mhz - 2666 mhz operation. Intel doesn't QA them for anything higher. That's why they dont list DDR 4133 as official support on any configuration. So yes, you have that correct.

Third: it's just insanity--unless you are rich and bleeding with money, that you or anyone would buy 4400 mhz memory and have that as an all or nothing goal, spending as much on RAM as a typical high end video card. It's simply NOT worth it to buy anything higher than 4000 mhz memory unless you are sitting on cash and have money to burn. And if you have money to burn you would just buy a Z390 Apex anyway and not even bat an eye, since money isn't important. But if money is important, set your sights realistically, don't waste money on Gskill Royal 4600 mhz memory and just buy something more reasonable. That's what I would do. 4133 mhz is the highest I would go personally. 3200 cas 14 for more budget minded people who still want tight timings.

Unfortunately, very few people have access to multiple tray CPU's to test unless you work in a computer shop, and are testing chips to see if they work.
I know this isn't what you wanted to hear but it's the best I can do.

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Last edited by superhead91; 03-15-2019 at 12:41 PM.
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post #47 of 83 (permalink) Old 03-14-2019, 03:25 PM
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Quote: Originally Posted by The Pook View Post
What RAM and voltage are you running? Some impressive timings
3600c15 tridentZ kit, at about 1.97v



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post #48 of 83 (permalink) Old 03-14-2019, 04:09 PM
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Just run the memory at tighter timings at 3866-4000mhz..... I doubt its the cpu imc or the motherboard. It's probably the auto settings you have turned on for the secondary - tertiary timings that is preventing it from booting. You need to set loose timings first and then tighten them after testing. You can't get really fast ram and expect it to just work.
I went from a 8700k to 9900k with the same kit of memory and switched boards. My 9900k needs the same vccio for stability and around the same vccsa voltage. I'm guessing the auto timing rules aren't optimized for a 9900k on that board.

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post #49 of 83 (permalink) Old 03-14-2019, 04:22 PM
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Quote: Originally Posted by Mikecdm View Post
3600c15 tridentZ kit, at about 1.97v
No you aren't.

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post #50 of 83 (permalink) Old 03-14-2019, 04:27 PM
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Quote: Originally Posted by Mikecdm View Post
3600c15 tridentZ kit, at about 1.97v

I'm assuming that's just bench settings/timings then? Still nice


Quote: Originally Posted by mouacyk View Post
No you aren't.


Intel i9 9900K Coffee Lake @ X8 5309mhz (+47.5%)
AMD FX-8320 Vishera @ X4 5022mhz (+43.5%)
Intel i5 4690K Haswell @ X4 5013mhz (+43.2%)
AMD X4 960T Zosma @ X6 4870mhz (+62.3%)
Intel i7 6700 Skylake @ X4 4709mhz (+38.5%)
Intel i5 6400 Skylake @ X4 4588mhz (+69.9%)
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