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Motherboard suggestions for O/Cing a 9900kf

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post #21 of 36 (permalink) Old 07-09-2019, 03:38 PM
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EVGA Z390 Dark, I run my 9900K at 5.5 on a chiller and 4133 memory. A lot of money for a "mainstream" board but I feel it was worth it. The $200-250 Gigabyte board and the ASRock Taichi/Ultimate are good as well.

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post #22 of 36 (permalink) Old 07-09-2019, 04:53 PM - Thread Starter
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Quote: Originally Posted by Hydroplane View Post
EVGA Z390 Dark, I run my 9900K at 5.5 on a chiller and 4133 memory. A lot of money for a "mainstream" board but I feel it was worth it. The $200-250 Gigabyte board and the ASRock Taichi/Ultimate are good as well.
I'm really leaning towards an ROG board, more cosmetic than anything, being that my NVLink is ROG and RGB sync compatible. I'm just wondering if the Strix z390-H or Maximus XI Hero is enough to OC a 9900k.
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post #23 of 36 (permalink) Old 07-09-2019, 05:13 PM - Thread Starter
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Quote: Originally Posted by WannaBeOCer View Post
Your best bet would be x299 or x399 since both z390/x570 do not have enough PCI-e lanes for two 2080 Tis.

https://www.gamersnexus.net/guides/3...idth-x16-vs-x8
There's a negligible loss (1-3%) from PCIe saturation when running NVLink 2080Ti's, but certainly not enough to warrant buying an HEDT setup.
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post #24 of 36 (permalink) Old 07-09-2019, 05:19 PM - Thread Starter
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Quote: Originally Posted by WannaBeOCer View Post
No it doesn't, that's why it now cost less than the 9900K. If that was the case Silicon Lottery would have higher binned chips.

https://siliconlottery.com/collectio...ntel-i9-9900kf

Tom's Hardware got a cherry picked sample that does the same clock as mine at the same exact voltage.

https://www.tomshardware.com/reviews...cs,6004-2.html
https://siliconlottery.com/collections/coffeelake-r

The 9900K's from Silicon Lottery are being sold at the same KF clocks, but almost $100 more for 5.1 (as well as being sold out)

https://www.tomshardware.com/reviews...ison,6038.html

Also an article that refutes your previous statement, and backs the fact that, at least in this sample, the KF SKU overclocks better than a standard K
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post #25 of 36 (permalink) Old 07-09-2019, 06:36 PM
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Quote: Originally Posted by KingUniverse View Post
https://siliconlottery.com/collections/coffeelake-r

The 9900K's from Silicon Lottery are being sold at the same KF clocks, but almost $100 more for 5.1 (as well as being sold out)

https://www.tomshardware.com/reviews...ison,6038.html

Also an article that refutes your previous statement, and backs the fact that, at least in this sample, the KF SKU overclocks better than a standard K
They are selling for $100 more because they aren't defective chips. They have the iGPU while the 9900KF doesn't. It's the same reason why the 9900K cost more than the 9900KF. The only chip that will be binned is the 9900KS. The only binning they are doing is to see which chips have a working iGPU.

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post #26 of 36 (permalink) Old 07-09-2019, 06:41 PM
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on Amazon the 9900KF is $439, 9900K is $489.

https://www.amazon.com/Intel-BX80684...1&s=pc&sr=1-14

https://www.amazon.com/Intel-i9-9900...=1&s=pc&sr=1-2

If there was any binning I'd assume it'd at least make them the same price given that it's lacking IGP.

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%)
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post #27 of 36 (permalink) Old 07-09-2019, 07:14 PM - Thread Starter
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Quote: Originally Posted by The Pook View Post
on Amazon the 9900KF is $439, 9900K is $489.

https://www.amazon.com/Intel-BX80684...1&s=pc&sr=1-14

https://www.amazon.com/Intel-i9-9900...=1&s=pc&sr=1-2

If there was any binning I'd assume it'd at least make them the same price given that it's lacking IGP.


The comment about KF SKU's is just from what I've read/seen from O/Cers and the consensus that the KF generally O/C's higher than a standard K (some theories are that the iGPU being disabled/broken helps with power/stability/heat). It's been observed by more than one individual with decent sample sizes. Not sure where the confusion came about KF SKU's being binned.

Obviously I understand that the KF SKU in and of itself doesn't guarantee any clock speeds, and isn't being binned (except by Silicon Lottery).

The KS definitely seems more fitting for what I'm looking for, but if the price point isn't there, I may just take my chances with an Amazon K or KF and see where I can get with it. From what I've read, the newer steppings are hitting 5.0+ quite frequently. If all else fails, Silicon Lottery is selling 5.0 KF's for a decent price.
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post #28 of 36 (permalink) Old 07-09-2019, 08:14 PM
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Quote: Originally Posted by KingUniverse View Post
The comment about KF SKU's is just from what I've read/seen from O/Cers and the consensus that the KF generally O/C's higher than a standard K (some theories are that the iGPU being disabled/broken helps with power/stability/heat). It's been observed by more than one individual with decent sample sizes. Not sure where the confusion came about KF SKU's being binned.

Obviously I understand that the KF SKU in and of itself doesn't guarantee any clock speeds, and isn't being binned (except by Silicon Lottery).

The KS definitely seems more fitting for what I'm looking for, but if the price point isn't there, I may just take my chances with an Amazon K or KF and see where I can get with it. From what I've read, the newer steppings are hitting 5.0+ quite frequently. If all else fails, Silicon Lottery is selling 5.0 KF's for a decent price.

If your only requirement is you want a 9900K that can do 5.0 then you'd be hard pressed to find a chip that can't do that. If you want a 9900K that can do 5.0 with at most 1.3v, then that needs some luck but still isn't incredibly rare either.

I wouldn't pay a penny over retail for a 5.0 binned 9900K/KF. a 5.1/5.2/5.3 binned at 1.3v makes some sense to pay for but not 5.0.

Intel i9 9900K Coffee Lake @ X8 5309mhz (+47.5%)
AMD FX-8320 Vishera @ X4 5022mhz (+43.5%)
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post #29 of 36 (permalink) Old 07-09-2019, 09:01 PM - Thread Starter
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Quote: Originally Posted by The Pook View Post
If your only requirement is you want a 9900K that can do 5.0 then you'd be hard pressed to find a chip that can't do that. If you want a 9900K that can do 5.0 with at most 1.3v, then that needs some luck but still isn't incredibly rare either.

I wouldn't pay a penny over retail for a 5.0 binned 9900K/KF. a 5.1/5.2/5.3 binned at 1.3v makes some sense to pay for but not 5.0.
I think I'm going to get a KF from Amazon and see what clocks I get. I just need to nail down which board I'm getting. Found some B-Die 3600 Trident Z.

https://www.amazon.com/dp/B01N4V82FW..._EjwjDbY558YD9

Is that a good pair, or any other suggestions? I would love to hit 5GHz on my RAM if at all possible with maybe some more higher end modules?

Also, I'm still heavily leaning towards the Strix z390-H or Maximus XI Hero. Will those work?
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post #30 of 36 (permalink) Old 07-09-2019, 09:07 PM
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Quote: Originally Posted by KingUniverse View Post
I think I'm going to get a KF from Amazon and see what clocks I get. I just need to nail down which board I'm getting. Found some B-Die 3600 Trident Z.

https://www.amazon.com/dp/B01N4V82FW..._EjwjDbY558YD9

Is that a good pair, or any other suggestions? I would love to hit 5GHz on my RAM if at all possible with maybe some more higher end modules?

Also, I'm still heavily leaning towards the Strix z390-H or Maximus XI Hero. Will those work?
If you don't care for RGB, save some money and get some TeamGroup Xtreem memory.

I've ordered 4 of these and so far all have been B-Die memory.

https://www.newegg.com/team-16gb-288...82E16820331244

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