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post #1 of 191 (permalink) Old 11-16-2018, 11:33 PM - Thread Starter
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Exclusive thread for i9 9900k lottery losers :-)

Hi guys,

I think I always lose the Silicone Lottery. Left and right people are reporting 5.0 Ghz on their i9 9900k's with around 1.2 v on the core. Heck, they are getting 5.2/5.3 around what my cpu needs (1.32).

After most initial reviews stated 1.35v as average needed for 5.0, I thought mine was ok but looking through threads now 1.35 v for 5.0 is very high. Am I the only one with a bad 9900k?

Let's start a thread for bad overclockers for a change. :-)

My basic specs:
i9 9900k
Aourus Master z390
Corsair RMi 850 W.
On air.

It seems I am stable at 1.32 in BIOS, LLC turbo, c-states off, mce off, avx 0, uncore 4.7 in Prime 26, Prime 29, OCCT and Cinebench. Anything lower gives me BSODs or WHEAs.

I can get to 5.1 at 1.32 v with uncore lowered to 43 and run Prime and Cinebench but I get WHEAs. Didn't try more volts.

If I lower the uncore to 45 and voltage to 1.31v in BIOS, it seems I am stable at 5.0 too.

VIDs at 5.0 jump to over 1.4.

Is your i9 9900k a loser too? Please chime in.

Thanks!
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post #2 of 191 (permalink) Old 11-17-2018, 12:24 AM
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You are not aware how small difference is between mid OC and high OC in real world.

But voltage you describe is something I hear when i9-9900K is launched.
For last 10 years I never saw processors who was not capable out of box to satisfied my low demands, for i9-9900K I would ask only 5.0GHz on default voltage on all cores. But people say he have problem even for that.
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post #3 of 191 (permalink) Old 11-17-2018, 01:11 AM
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I can't really get into overclocking mine properly until I get it under water (it hits 95C in realbench at default speeds of 4.7 with a 250W air cooler..) but initial testing suggests I'm probably in the same ball park as you. The thing about what you read online is that generally people who don't have great chips don't brag about it or post their results online as often, so it can seem like you got a terrible chip but in reality it's just average/okay.

The other thing is, you've gotta be one hell of a winner to get 5Ghz at 1.2V when the stock chip (on my Maximus XI Formula board at least) already pulls 1.250V when stressing with AVX in AIDA64 and Realbench. Sometimes people overclock only to run benchmarks like cinebench, which require much less voltage than AVX stress tests.

So for the really good examples, you've gotta ask is that with AVX load? Is there an AVX offset in place that isn't mentioned? It can be hard to get the full picture without that sort of info.

If you look at it this way it's not so bad, the architecture is the same as the 8700k more or less, but with 2 more cores and slightly more mature silicon. 1.32V would have been a great result for 5Ghz on the 8700k. My 8700k needs 1.35ish to sustain 5Ghz with an AVX offset of 0.

So congrats on being able to hit 5Ghz stable. If you can keep your temps in check (which is what is concerning me the most lol) then set it, forget it and enjoy your new system.

System Specs: Lian Li PC-011 Dynamic - ROG Maximus X Code - Watercooled Intel 8700k (5Ghz) - Watercooled Strix GTX 1080Ti OC (2050-2063Mhz) - G. Skill Trident Z RGB 3200Mhz 32GB - Seasonic X-1050W PSU - Intel 600P NVME SSD
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post #4 of 191 (permalink) Old 11-17-2018, 01:33 AM - Thread Starter
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Thanks, guys! Yes, I know the differences in real life are minimal and often people will brag after 1 Cinebench run but still, it seems the quality on these chips varies wildly.

See here:

https://www.hardwareluxx.de/community/f139/oc-prozessoren-intel-sockel-1151-coffee-lake-laberthread-1175411-951.html

Some people apparently are able to hit 5.0 at less than 1.2 and run comfortably at 1.32 with 5.2. And I've seen more such reports in different places, even here.

Anyway, what can you do. I wonder what Silicone Lottery statistics will look like.

With how hot the 9900k is, the voltage does make big difference. I am on air and had to have my window open to keep the ambient lower and run prime, occt etc.
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post #5 of 191 (permalink) Old 11-17-2018, 01:48 AM
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Quote: Originally Posted by Majek View Post
Thanks, guys! Yes, I know the differences in real life are minimal and often people will brag after 1 Cinebench run but still, it seems the quality on these chips varies wildly.

See here:

https://www.hardwareluxx.de/communit...75411-951.html

Some people apparently are able to hit 5.0 at less than 1.2 and run comfortably at 1.32 with 5.2. And I've seen more such reports in different places, even here.

Anyway, what can you do. I wonder what Silicone Lottery statistics will look like.

With how hot the 9900k is, the voltage does make big difference. I am on air and had to have my window open to keep the ambient lower and run prime, occt etc.
What air cooler are you using? I'm temporarily using the Dark Rock Pro 4 and at 1.32V it will immediately hit 100C thermal throttle in any AVX stress test. Even Cinebench will drive it into the 90s at that voltage. I wonder if I didn't tighten mine down enough.

System Specs: Lian Li PC-011 Dynamic - ROG Maximus X Code - Watercooled Intel 8700k (5Ghz) - Watercooled Strix GTX 1080Ti OC (2050-2063Mhz) - G. Skill Trident Z RGB 3200Mhz 32GB - Seasonic X-1050W PSU - Intel 600P NVME SSD
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post #6 of 191 (permalink) Old 11-17-2018, 03:02 AM - Thread Starter
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Quote: Originally Posted by Zammin View Post
What air cooler are you using? I'm temporarily using the Dark Rock Pro 4 and at 1.32V it will immediately hit 100C thermal throttle in any AVX stress test. Even Cinebench will drive it into the 90s at that voltage. I wonder if I didn't tighten mine down enough.
Same thing here. Cinebench can go into high 80s with low ambient. For prime I use only custom 1344 ffts. No point going with small ffts without water.

Are you also at 5.0 with 1.32v?
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post #7 of 191 (permalink) Old 11-17-2018, 04:57 AM
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Quote: Originally Posted by Majek View Post
Same thing here. Cinebench can go into high 80s with low ambient. For prime I use only custom 1344 ffts. No point going with small ffts without water.

Are you also at 5.0 with 1.32v?
I only ran something around 1.32V to see what I could pass Cinebench with, because even with just Cinebench at that sort of voltage under load it was hitting around 95C+. That was at 5Ghz but only for one run.

I'm not overclocked at all right now. I can't really overclock it on air because it already hits 95C at 4.7Ghz (stock) in RealBench and 100C for a split second upon starting AIDA64's stress test.

At 4.7Ghz and stock voltage Cinebench puts it in the low-mid 70s. The ambient here has been around 23-25 lately I think. The temps are pretty close across the cores, just very high under AVX stress loads. That's why I wonder if I didn't tighten the cooler down enough.. Oh well it's only a temporary measure anyway.

System Specs: Lian Li PC-011 Dynamic - ROG Maximus X Code - Watercooled Intel 8700k (5Ghz) - Watercooled Strix GTX 1080Ti OC (2050-2063Mhz) - G. Skill Trident Z RGB 3200Mhz 32GB - Seasonic X-1050W PSU - Intel 600P NVME SSD

Last edited by Zammin; 11-17-2018 at 05:00 AM.
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post #8 of 191 (permalink) Old 11-17-2018, 05:13 AM
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A few things, I have a suspicion the reviewers get sent cherry picked samples that overclock well. There is a confirmation bias for self reporting only the best overclocking processors, no one brags about having a poor overclocker. I think your CPU is average, not below average. The difference between stock and overclocked in the real world is insignificant so you shouldn't stress over it, it is purely bragging rights for something out of your control. The motherboard plays a huge role in overclocking success, and not just the hardware but the bios software as well. On Z370, 8th gen Coffee Lake overclocked quite poorly on some boards even the high end ones until the first rounds of bios patches were made available. Future bios patches may improve your performance. Lastly the i9-9900K is on the same 14nm silicon design as Skylake and 5GHz + is pushing the limits of this design pretty far.

Last edited by Vario; 11-17-2018 at 05:17 AM.
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post #9 of 191 (permalink) Old 11-17-2018, 05:18 AM
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That's something wrong.
How much is on default clock, temperature?

Pay attention on site Silicon Lottery, they don't have i9-9900K at the moment but in near future they will have.
And if they offer 5.2 GHz on 1.3V than your CPU can't be so bad.

I only ask friend who carefull look all reviews in building... How much on all cores?
He say 5.1 barely and burn... What mean burn, he say 90+...

Looks like they screwed up something with die, when I saw video of der8auer who sand die of CPU I stop to look and didn't look reviews any more.
Plus story that suddenly solder is not good solution I knew something is behind and they didn't done properly something or they can't build 8 core processors with normal temperatures on 5.0GHz. Normal temperature is 65C in Prime95 on 5.0GHz all cores.
But obvious situation is not much different with i9-9820X.

That's everything one architecture and she who suffer between 4.5 and 5.0GHz several years with oscilation with cores, frequency, price... etc...
Because of that I know very small about my next platform but I know one thing, motherboard will support DDR5 and PCI-E 4.0.

Last edited by Vlada011; 11-17-2018 at 05:31 AM.
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post #10 of 191 (permalink) Old 11-17-2018, 10:40 AM
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My CPU does 5.1 at around 1.300V is believe.. I haven't tested much yet. Only runned Cinebench a few times. Temps are in the mid 60s.. Thought they said this CPU was smoking hot? lol..

Folding for Team.Hardware.no. - Team number 37651 - My [email protected] Stats -

I9 9900K - 1080Ti - 16GB DDR4 - Z390 Master - AX1500I - 950 PRO - ROG SWIFT - MO-RA420LT, 2xD5s, IV PRO, EK 1080Ti - Define R5
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