*Official* Intel DDR4 24/7 Memory Stability Thread - Page 1042 - Overclock.net - An Overclocking Community

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*Official* Intel DDR4 24/7 Memory Stability Thread

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post #10411 of 10664 (permalink) Old 11-06-2019, 07:29 AM
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Quote: Originally Posted by JoeRambo View Post
It would be the most visible loss of performance in tests like Linpack that are memory bw efficiency bound. In my friend's memory tuning i think he went from 410 to 490 Gflops on 5Ghz 9900k.
Oh yes, i did a test in shadow of the tombraider.
Minimum fps took a nice hit.
tFAW 41 = 175
tFAW 63 = 130

GSAT copy bandwith shows it best:

tFAW 41 = 48000
tFAW 12 = 48800
tFAW 63 = 43500

But as far as the maximum tFAW goes, it's interesting to say the least.
These are cinebench scores with 9900k : (temps are from 21 pass prime95 1344)
HT OFF = tfaw 46 = 51/47 = 1750 = max temp 72 - 1.288
HT OFF = tfaw 63 = 52/48 = 1793 = max temp 72 - 1.359
HT ON = tfaw 63 = 51/47 = 2266 = max temp 76 - 1.359

And last one without cinebench scores:
HT OFF = tfaw 63 = 51/47 = max temp 66 - 1.288

Sorry for long post

Last edited by bxcounter; 11-06-2019 at 09:57 AM.
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post #10412 of 10664 (permalink) Old 11-06-2019, 11:04 AM
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I am beginning to go mad lol. No matter what I try I get errors all over the place on any timings on 4400MHz.
Wierdest thing is, nothing seems to respond to more or less voltage at all.. I went all over the place from 1.48v RAM all the way to 1.6v. From 1.2v IO/SA all the way to 1.35v. I even turned down my CPU OC even tho it tested stable and no matter what it will error out...

I am beginning to think 4400 just isn't going to work at all. I must be hitting A wall on either the DIMM's frequency or just the IMC to the point even voltage can't save it.

Cars:
-Crashed: (not my fault ) '94 Nissan 100NX GA16DE (a.k.a. NX1600). Renault Laguna Phase I facelift '99 1.6 K4M. (Broke a strut and smacked a tree).
-Sold: '00 Nissan Primera P11-144 QG18DE, '97 Honda Prelude F20A4, 03 Ignis Sport.
-Current daily: '07 Ford Focus 1.6 Futura.
-Current funcars: '03 Peugeot 206CC 2.0 RFN fully riced and tuned (Turbo coming soon)
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Corsair Vengeance RGB B-Die @ 4200 16-17-17-28-280-2T 1.54v
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Samsung 850 EVO 500GB x2
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Phanteks Enthoo Evolv X
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Windows 10 Pro X64
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AMD Athlon XP-M Barton @ 2612Mhz
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ASUS A7N8X-X
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HIS Radeon X800XL 256MB w/ V-MOD @ 585Mhz GPU 500Mhz VRAM.
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Maxtor 80GB IDE
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Cooler Master Real Power M520W
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post #10413 of 10664 (permalink) Old 11-06-2019, 04:00 PM
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Finally got 4000 15-19-19 stable on my Ballistix Elite 4000 18-19-19 kit.
Took a lot more VCCSA/VCCIO than I expected, which probably means my 9600k has a weak IMC.

Spoiler!


I also restarted and did a quick HCI MemTest run and it passed 100% so it should be pretty stable.

Spoiler!

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post #10414 of 10664 (permalink) Old 11-06-2019, 04:24 PM
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Well, I found the weak spot of my system finally. 4400 just needs a hideous amount of IO/SA (think 1.4v+). It failed every single HCI test even on 4400 19-22-22-49-500-2T or something stupid loose like that until I set 1.38v SA 1.34v IO. Then it started to stabilize finally.
4800 can boot but is totally unusable and sometimes just throws a random kernel error when booting and hard resets the system lol.

So, I found out 1.38v SA 1.34v IO works, so I'll leave them there and lower them later. CPU backed off to 4.8 @ 1.28v and 4.5 cache.

I now have a HCI test running on 4133 15-17-17-32-280-2T with 1.6v RAM (1.584v actual) and it is about to go to 200% so the first legs there.

Yes, I know 1.6v is a lot but it needs that for CL15. It won't POST CL15 at 1.50v and barely gets to windows on 1.55v so yeah..

If this is stable I'm going to drop tWR and tCWL as low as they go without erroring and that's about it for 4133Mhz. Then it's off to see if I can get CL15 to run 4200. But seeing as how much problems I had getting CL16 to run on 4200 I doubt it..

Then it's more hours and hours of testing to see how low IO/SA can go before erroring out. My guess is around 1.30v ish on this IMC for C15 4133.

By the ways I have to give MSI props for the "Optimized RTL" setting.
It came really close to the lowest it can boot actually. All I could do after was set the RTL Initial to 65 (lower won't POST) and offset 22. 23 boots but totally missed training at like 60-66-5-9.

EDIT: Yes, I know tRAS is probably too low but didn't wanna stop HCI as it was pretty far. I'll correct it next reboot.

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-Sold: '00 Nissan Primera P11-144 QG18DE, '97 Honda Prelude F20A4, 03 Ignis Sport.
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Last edited by Imprezzion; 11-06-2019 at 04:36 PM.
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post #10415 of 10664 (permalink) Old 11-06-2019, 06:23 PM
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9900K 5.0GHz/4.7GHz Cache/ Ram 4666 MHz CL17 1T

GSAT stable, not stable with Karchu Test yet but I am working on it, must find a working IO/SA combination for this Test for my 4.7 GHz Cache then everything will be great



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post #10416 of 10664 (permalink) Old 11-06-2019, 11:06 PM
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Quote: Originally Posted by swddeluxx View Post
9900K 5.0GHz/4.7GHz Cache/ Ram 4666 MHz CL17 1T

GSAT stable, not stable with Karchu Test yet but I am working on it, must find a working IO/SA combination for this Test for my 4.7 GHz Cache then everything will be great



Best b-die 2x8 overclock i have ever seen. Period.

If it's no problem, coul you please test something for me ?

Turn RTL training OFF. (This is important)

Manually enter following RTL values:

RTL CHA 61
RTL CHB 61

Put all "D1" and "IOL D0" values to = "0"

IOL offset to:
28
27

RFR to:
14
14

See if it boots.
If it does you will have to realign your voltages.
I dropped my ram and VCCIO voltages a bit with this trick and gained 0.2 latency and little bit of bandwith.

Vielen Dank

Last edited by bxcounter; 11-06-2019 at 11:15 PM.
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post #10417 of 10664 (permalink) Old 11-06-2019, 11:59 PM
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Most impressive part is the fact it only took you 1.504v DRAM lol.
1.55v will probably make it Rock solid in any test.

Settings from my previous post passed 1 hour GSAT, 500% HCI and 2 hours of Prime95 Blend on 13GB load just fine. It did take pretty loose RTL/IO but these settings won't do any better. 59-60-5-5 is the best it'll run.

All I still wanna chance maybe is tCWL 16 and tWR 16. They might go a bit lower but not sure.

I'm settling on 4133 15-17-17-32-280-2T as of now lol.

DIMM's got up to about 42c on 1.6v so nothing special in terms of temps.

Cars:
-Crashed: (not my fault ) '94 Nissan 100NX GA16DE (a.k.a. NX1600). Renault Laguna Phase I facelift '99 1.6 K4M. (Broke a strut and smacked a tree).
-Sold: '00 Nissan Primera P11-144 QG18DE, '97 Honda Prelude F20A4, 03 Ignis Sport.
-Current daily: '07 Ford Focus 1.6 Futura.
-Current funcars: '03 Peugeot 206CC 2.0 RFN fully riced and tuned (Turbo coming soon)
Full-On Rainbowbarf
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GPU
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RAM
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Hard Drive
Samsung 850 EVO 500GB x2
Power Supply
Seasonic Focus Plus Gold 750W
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EK MLC-Phoenix 280 Kit
Case
Phanteks Enthoo Evolv X
Operating System
Windows 10 Pro X64
Monitor
Samsung S27B350H @ 1080p 75Hz OC
Monitor
Iiyama GB2788HS @ 144Hz
Keyboard
Logitech G710+
Mouse
Trust GXT31
Mousepad
Corsair MM300 Large
Audio
Steelseries Siberia V2
CPU
AMD Athlon XP-M Barton @ 2612Mhz
Motherboard
ASUS A7N8X-X
GPU
HIS Radeon X800XL 256MB w/ V-MOD @ 585Mhz GPU 500Mhz VRAM.
RAM
3x512MB Samsung PC-3200 CL3
Hard Drive
Maxtor 80GB IDE
Power Supply
Cooler Master Real Power M520W
Cooling
Cooler Master alu/copper block with a Slipstream 1600RPM
Case
OEM with great airflow and even cable management
Operating System
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Last edited by Imprezzion; 11-07-2019 at 12:07 AM.
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post #10418 of 10664 (permalink) Old 11-07-2019, 10:50 AM
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GRABibus--i76900K @4.4/3.7---3400MHz-C14-15-14-34-1T----1.41v---SA 0.8v---HCI > 1000%

Motherboard : ASUS X99-Deluxe II
Vccin=1.856V
Vcore=1.37V adaptative

I ran my TridentZ 4x8GB 3200MHz CL14 (F4-3200C14Q-32GTZ) at 3200MHz with timings 13-14-13-34-250-1T since years.
I never went deeply to overclock it and didn't found during weeks why I could pass 100% HCI at 3400MHz 14-15-14-34-250-1T and still had "Hardware failure errors" in Aida64 Cache stress test....
I was surprised to pass HCI but not Aida64 stress test Cache !!

I tried increasing Vdimm, vcssa, vccio, decreasing cache frequency...etc...Nothing worked.

In fact, it was due to Vccin. I just had to increase it a bit from 1.81V (For 3200MHz 13-14-13-34-250-1T) to 1.86V (For 3400MHz 14-15-14-34-250-1T) in order to not have any more "Hardware failure errors" in Aida64 Cache stress test.
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post #10419 of 10664 (permalink) Old 11-07-2019, 11:30 AM
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Hi,
Newegg got a couple more 4x8gb kits of 3600C16 in 280.us

https://www.newegg.com/g-skill-32gb-...82E16820232585

CPU
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post #10420 of 10664 (permalink) Old 11-07-2019, 12:37 PM
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Quote: Originally Posted by ThrashZone View Post
Hi,
Newegg got a couple more 4x8gb kits of 3600C16 in 280.us

https://www.newegg.com/g-skill-32gb-...82E16820232585
Hmmm ... I'm tempted.

i9 9900K: HT = On | CPU Clock Ratio = 51 | AVX Offset = 0 | Uncore Ratio = 47 | CPU internal AC/DC Loadline = 70 / 70 | Vcore Loadline Calibration = Medium | Vcore = Auto | VCCIO = 1.340V (1.320V) | VCCSA = 1.320V (1.332V)| C-States = All Enabled | DDR = [email protected] @ 1.450V | Seasonic Focus Plus Platinum 850W | Acer Predator Z35P | Gigabyte Aorus 2080 Ti 11GB 1920/8000 @1.0450V | NZXT X72 Kraken
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