Hello everyone!!
I'm overclocking my RAMs to their maximum 24/7 stable. I'm using 4x16GB Ballistix Sport LT 2666 MHz CL16
For some reason the maximum overclock that I can get is 3200 MHz CL18 (12 x 133 @1.3V), pretty stable so far, but I can't boot at anything higher than 3200 MHz, is that a Clevo P870TM1 limitation or my RAM can't go any higher?
This dude over here is able to get 4000 MHz CL20 on a 4x8GB config on an ITX MB. What am I missing?:
https://www.overclockers.com/forums...1TXx6z91JZ-QDMD_ldhv5rrwJAHVEij7FeWtzZirBYagQ
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PS: RAM overcloking is by far the most complicated and tedious hardware overclocking
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electrosoft Perpetualist Matrixist
Each laptop has a limit based on CPU imc and system board trace quality because of design constraints.
There’s also the fact your memory maybe hitting a wall considering you’re using 2666 and have pushed it to 3200 with loose timings already.
Only real, valid way to see what is giving up the ghost is to purchase some quality better tier sticks snd work your way up with stock timings. (IE 3800 CL18 sticks running at 2666 snd keep pushing up till the system can’t handle it, drop back down snd then tighten up your timings).jc_denton likes this. -
I just want to add that Skylake-X is designed for Quadchannel use.
And this motherboard is specially designed to hit DDR 4000 speeds. At least that's what is stated on the Asrock product page.electrosoft likes this. -
This moterboard max support 3200Mhz I Have Crucial Ballistix DDR4 SODIMM 32GB 3200MHz CL16 (BL32G32C16S4B). I try to set 3400/3600 at timmings CL18/19 never run this laptop.
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electrosoft Perpetualist Matrixist
@Johnksss has his 870TM1 running at 3467 stable and able to test at 3600
So that can't be true.
Unless the sticks are certified at higher speeds, there is no guarantee they will run past their certain speed on platforms.
There's a reason top tier memory is more expensive once you start moving past 3200.
Johnksss sig:
JC's sig:
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on P775DM3-G @3200
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Maybe I need to drop this question on the P870TM1 sub-forum and see what are people getting when overclocking, because 3800MHz SODIMM memories are a bit expensive to buy and maybe hit the same 3200 MHz wall that I'm facing now.
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electrosoft Perpetualist Matrixist
The trade off for let's say 3800 modules is you can really tighten up the timings (which can be equally as important) at lower clocks frequencies. Corsair kits are pretty beastly but you get what you pay for. I picked up some Ballistix CL16 3200 sticks (2x8GB) and they were dirt cheap brand new (~$70) XMP PnP and working fine in my 870TM1. They flat out will not run above 3200 no matter how much I loosen up the timings or increase voltage while I know my system can do at least ~3466 or higher (tested and verified with a Corsair 3600 kit), but if they could do more, I suspect they would have been sold as such by Crucial.
Even all desktops aren't guaranteed to run faster sticks due to QVL, poor quality or sometimes the CPU has a poor IMC for high frequencies (but still can easily hit paper specs). Sometimes it's the memory; sometimes it's the host environment; sometimes it's both.
I had some desktop corsair vengeance 3200 sticks that were CL16 B-die and they crapped out at a bin above even with extremely loose timings. This was on my EVGA FTW Z390 which then took some G.Skill 4000 B-Die sticks and run them like a champ. I tested those same G.Skill 4000 sticks which run like a bat out of hell on my EVGA FTW Z390 in an Asrock Z390 board and they flat out refuse to run at 4000 even with the same 9900k in it at stock. Even pumping up the voltage does nothing. Dropping down to 2666 and climbing, I found the board craps out at 3600, but that's ok because I only needed it to run those same Vengeance 3200 sticks which in the Asrock Z390 board still won't go above 3200.
After 3200 (or even 3000 some would say), unless you are running known, good, cherry picked 3200+->4000 sticks that are sold as such, nothing is guaranteed.
I, personally, would be happy that I was able to get 3200 out of the 2666 sticks, albeit CL18 would have me increasing to 1.35+ to tighten up those timings if possible. At that point, you have to ask yourself do you want to drop $200-400 on memory sticks to eeek out 2-3 higher bins and/or (more importantly) much tighter timings? I'm sitting on a brand new set of factory sealed Corsair 3800 DDR SODIMMs https://www.corsair.com/us/en/Categ...3800MHz-CL18-Memory-Kit/p/CMSX32GX4M4X3800C18 asking myself the same question for the last month or so while they sit up for sale lol. Eventually I'm going to cave and I know it or a system is going to come in needed memory and I'll move my Ballistix sticks to it and then crack open the good stuff. -
electrosoft Perpetualist Matrixist
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I'll try to lower my CAS latency a bit and see if I can manage to get it stable. But overclocking RAMs is so time consuming, a lot of restart, trial and error and a lot of testing to check stability. On a side note, I wasn't able to get 3200MHz CL18 stable with voltage over 1.30V. Is that normal? I mean that config was stable @1.30V but unstable @1.35V+.. that doesn't makes any sense to me, unless that's a board limitation of some kind or a temperature issue, because more voltage equals more stable RAM? isn't it? -
Meaker@Sager Company Representative
Slots can also make a difference I have found with 1 + 4 being the most stable for me.
Tyranus07 likes this. -
yrekabakery Notebook Virtuoso
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Put it this way. The old DM board don't handle ram overclock equal good as the newer board. This means they making better board now due Intel have increased ram specs. But still not good enough.
Ram quality still matters. I tried to overclock 2666 sticks in my P870Dm with no success. Bro Jackson managed 2933 on the newer TM board with same sticks. With better sticks he managed a lot better. My cheapo lower specked OEM 2133 sticks was able to do 2800 with better timings than the 2666 kit I tested. With better sticks I expect the outcome also would be better for me. Even on a 5 years old bord designed around Intels 2133MHz specsThe newer has to be better, goes damn slow. At least for notebooks, LOOL
Today's 2933 standard speed, should with the same 31% overclock have reached past 3800 without any problems. But as you can see, we are still not there even with the new and fancy. The desktops have come a much longer way in front now than notebooks. Yeah, notebooks don't get any love. They are treated as bastards.Last edited: Nov 12, 2020jc_denton, electrosoft and Tyranus07 like this. -
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Ram overclocking also depends on chip model/quality. I overclocked 2 cheap oem hynix cjr and 2 hyperx jjr based ram sticks from 2666/2400 to 3000 16 18 18 36 510 on 1,2V. I know that diffrent sticks have diffrent memory chips. For example i bought new hyperx 2x8gb and it had nanya memory, diffrent hyperx afr, jjr even mjr. Here is a nice guide about ram https://www.reddit.com/r/overclocking/wiki/ram/ddr4
Papusan, electrosoft and Tyranus07 like this. -
Meaker@Sager Company Representative
Papusan likes this. -
3800 has now been validated as being able to run on P870TM1 thanks to @Prema of course.
@electrosoft
Last edited: Nov 14, 2020jc_denton, electrosoft and Papusan like this. -
electrosoft Perpetualist Matrixist
I think I might have to delist and crack those sticks open....damn. -
I had better luck with my old 9900K "P0", reaching 3600MT/s with 4x8Gb 4000 sticks. The R0 doesn't play as well with them, capping out at around 3460 and only working when the starts align.
The trick is to clear nvram with each attempt at a new speed, or to boot directly into bios after nvram reset and set memory profile to custom then reboot and raise the ratio without touching the timings.
I documented the process in the OC lounge if you can dig it up.
As for 3333MT/s, it's at 133Mhz x 12 ratio + 133 QCLK ODD Ratio - I tuned them as tight as 1.45v would allow me.
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jc_denton likes this. -
Thanks guys!
@Tyranus07
They were able to run 3700 with a 8700K.
As to them running at 3800 Mhz, all I did was set the multiplier and voltage settings and let it boot on it's own. No tuning or adjusting. I was curios as I looked for prior runs and thought Gee, none of my runs were while I had a 9900K.jc_denton, Tyranus07 and electrosoft like this. -
electrosoft Perpetualist Matrixist
@jc_denton I haven't tried any runs with my 9900k p0 or r0 since I've been coasting by with these inexpensive Ballistix 3200 sticks.
@Tyranus07 You'll notice both Johnksss and JC are running more expensive. top tier memory kits from Corsair. If you really want to push your memory, you might want to think about investing in a set. 4x8 tends to be better on Z3X. -
Meaker@Sager Company Representative
Single rank sticks do seem to do better, less capacitive loading.
Tyranus07 likes this. -
The good thing is I was able to get stable 3200MHz CL17jc_denton, electrosoft and Papusan like this. -
On my P775DM3-G i have stable 3200MHz cl15 on 1.35V
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As for the guide or reference, it's around here:
http://forum.notebookreview.com/threads/clevo-overclockers-lounge.788975/page-1827#post-10974733
you might want to go a few pages back and forward there, but as far as I remember it's around there. -
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For a quick bench things sometimes seem stable, but it usually takes a lot of fine-tuning to actually get it stable.
Getting this TeamGroup 2667Mhz (standard RAM without XMP) rock-stable at 3200Mhz CL16 took quite a bit of fine-tuning while keeping the voltage at 1.35v, even though it can be made to boot and pass AIDA64 at 3600Mhz:
[\SPOILER]
Here the TM5 Mod (run as admin) in case you wanna test stability of your own RAM OCs.
https://mega.nz/file/SJMgTAYD#n_8QVY6FS7LzJkBe79k7UB0CUm8LDD_S5PFi241VRNQLast edited: Nov 17, 2020 -
I think today it's not rare to see a ram stick sold as 2666 cl16 for exemple but capable of 3200 cl16. Of course there are some brand that want to sell as cheap as possible, but if demand exist, it's possible to sell 3200 stick as 2666 and just program them to work at that speed by default. I remember seeing this on some old Athlon/Phenom CPU
Now, talking about what the main board or CPU is capable, well it's quite impressive!
I think you can have some variation using different stick in different slots as voltage can varry a bit depending on the lenght of the track.
For performance sometime it can be better to go with lowering timing instead of finding highest frequency.
@Prema thank for sharing -
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Meaker@Sager Company Representative
Are they silk screened like that?
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The manufacturer is SpecTek Inc., which is a specialized subsidiary of Micron.
Here the same 2*16GB 2667Mhz (CL19) sticks stable at 3400Mhz CL20 @ 1.35v:
Last edited: Nov 20, 2020jc_denton, electrosoft and Papusan like this. -
Meaker@Sager Company Representative
It was funny when people complained that gamers nexus were "only" using 3200Mhz ram in their testing without realising it was at CL14 with optimised sub timings.
electrosoft likes this. -
Yes, timings can be tightened gradually as clocks are dropped:
[\SPOILER]Papusan likes this. -
Meaker@Sager Company Representative
They were basically the same as 3600-3733Mhz results with looser timings.
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Meaker@Sager Company Representative
I've been playing around with timings, doing 3050mhz cl14, not had time to finish it just yet. Really does not like 16x though even at looser timings.
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@Meaker@Sager It's still nice!
Even if i'm not using DDR4 but DDR3, for now i can just run my 4 sticks @1600 CL9 and 1T command rate timing on my P150SM. They're all disigned to run at default 1600 CL11 and whatever with CL12 timings i just can't boot at 1866, even with 2T command rate.
From what i understand, higher frequency -> better bandwidth and lower timings -> lower latency. Am i wrong? -
Meaker@Sager Company Representative
Higher speed at the same timings also means lower latencies too as it is measured in click cycles so if each cycle is shorter that counts too.
My ddr3 4gb sticks were 1600c11 and they did that at 2133mhz c11. Good times.Shin Falcon and Papusan like this. -
Spartan@HIDevolution and Papusan like this.
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Meaker@Sager Company Representative
Yeah odd signal integrity issues as you go beyond spec. Back with my old 980m I lost 100mhz-150mhz of ram speed populating more VRMs.
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electrosoft Perpetualist Matrixist
get past the wall. My 8086k did 3466 in here @ stock IO/SA with a set of 3600 sticks before. 3200 works fine and passes TM5 no problem on both sets. Anything past 3200 and it won't even boot. This is in pairs. I haven't single stick slot hopped yet. This is on the newest/latest Prema (1.07 R3)
Like you experienced, it might be an r0 issue. I might end up swapping back in my p0 if I can't break past this wall. -
Meaker@Sager Company Representative
Or it's just sample to sample variation on some trait the notebook is more sensitive to.
jc_denton, electrosoft and Papusan like this. -
electrosoft Perpetualist Matrixist
gone 8086k. I'm relidding my p0 atm w/ the BartX to give it a whirl tomorrow to see if the same conditions exist with a different (but previously in there) CPU.
But as you say, there can be many other subtle variations (or even changes to the physical traces themselves over time) that could be causing it.jc_denton likes this. -
Training guide:
http://forum.notebookreview.com/threads/clevo-overclockers-lounge.788975/page-1815#post-10973151
3600mhz notes:
http://forum.notebookreview.com/threads/clevo-overclockers-lounge.788975/page-1820#post-10973760
http://forum.notebookreview.com/threads/clevo-overclockers-lounge.788975/page-1819#post-10973732
Another thing do try is turn fast boot off, that way it may actually boot through a wall. Downside is that it will need to retrain each reboot, which sucks since it has a decent chance of failing (and takes a while)Prema and electrosoft like this. -
Meaker@Sager Company Representative
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electrosoft Perpetualist Matrixist
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electrosoft Perpetualist Matrixist
The p0 was WAY worse in the TM than the r0 it balked at 3200 repeatedly throwing up errors in TM5 even with VCC adjustments yet on my desktop it handled 4000 mem at a lower vcc setting than my ks. I had also forgotten how much louder the p0 was in the 870TM relatively speaking to the 9900ks.
I did try stock scaling then stock + VCC scaling when it all came to a halt @ 3200. Maybe my steps were wrong. I was feeding it extra voltage at times though. From your guide, it seems the idea is to stay the course @ stock voltage and SPD timings and just scale frequency and adjusting VCCIO/VCCIA if necessary so the limitation is the memory eventually?
When I am tuning for OCs or mem, I usually remove the battery and cmos battery on laptops. I've done this since back in the good Alienware days.
Then when it fails to boot I just unplug the power and for extra oomph hit the power button for a few seconds. Plugging back in resets and I get the Prema message.
Boot to stock timings which for Corsair varied depending on the number of sticks I had installed. their SPD is 2666, but with all 4 installed it defaulted to 2400.
I never tried training them as a complete set setting at the odd stock 2400 boot. I'll have to do that.
Your post outlined the sequence as:
" nvram reset > set custom profile, keep timings and stock 1.2v > train > full shutdown from windows > go up a multiplier add voltage > train > full shutdown."
So install, reset, set custom but keep timings as presented and stock Vmem. What do you do when it fails to boot? (IE, no full shutdown from Windows available). Eventually climbing will fail before boot. I just want to make sure I'm not missing a step or something.
Earlier today I slot hopped with individual sticks just testing with no major finds except slot one seems the most consistent past 3000mhz both frequency and tighter timings.jc_denton likes this.
RAM Overclocking on Clevo
Discussion in 'Sager and Clevo' started by Tyranus07, Nov 11, 2020.