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post #1911 of 1924 (permalink) Old 09-01-2019, 11:20 AM
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I tried the kit before with the velocity block but I took the washers out. Then i wanted.to see the difference we with the copper relid but when I did that I had core-0 hitting 11 celcius higher. So I went a redid the direct die again but I kept getting a boot problem cuase of pressure on the pins , after I couple if tries I got code 00 took the cpu off to inspect and boom I had 2 pins burnt off the cpu. I dont think its problem with the direct per say but there should also be a block designed for the right height of the kit , which the ek velocity has to be played with alot cuase it ethier to tight or loose. Regardless back to the drawing board need another cpu any ideas , silicon lottery has some at 5.0 but with avx 2 and has to go with 3200mhz mem. I want something a bit more robust again that does 5.0 but cooler and avx 0.

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post #1912 of 1924 (permalink) Old 09-12-2019, 03:39 PM
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I was jealous of some of the thermal results I kept seeing on here and decided to redo my thermal paste to see if it helped. Immediately when I pulled my NH-D15 off, I noticed a substantial gap in the thermal paste residue on the CPU. Tested with RealBench 2.56 for 15m using up to 32GB RAM before and after. Peak CPU Package temp dropped 4°C.

Before:
https://www.overclock.net/forum/atta...6&d=1568326617

After:
https://www.overclock.net/forum/atta...8&d=1568326659

This is with my previously established stable settings. 1.32v VCORE, cache 43x. Per-core OC with 1-7 set to 50x and 8 set to 47x. AVX offset of 2. C1 and C3 left on, as per-core OC seemed to be broken without them on in previous testing (though there's been a BIOS update since then, so I don't know if that changed anything). I always get SpeedStep, EIST, and SpeedShift mixed up, but if memory serves, only the one required for c-states is enabled. I didn't go back into the BIOS to verify settings.

I also ran the Blender BMW benchmark and I no longer experience thermal throttling on any cores in that now. Now I'm wondering if I might have the thermal headroom to push an all-core OC of 5GHz.

I'd love to get any feedback anyone has - particulary @Falkentyne , as you really seem to know your stuff.

*edit* UPDATE: I set my OC to 5GHz all-core with no AVX offset. Was able to complete the Blender BMW benchmark with a max core temp of 97ºC. Running OCCT on default settings for a bit and might do some additional stability testing, but it's looking good so far.
*edit2* Nope. Small FFTs in P95 26.6 thermal throttled and BSODed with WHEA_UNCORRECTABLE_ERROR.
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Last edited by Sea Monkey; 09-12-2019 at 05:57 PM.
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post #1913 of 1924 (permalink) Old 09-13-2019, 05:41 PM
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I want to clock my ring bus beyond 5.1ghz as i have my cpu cores at 5.4ghz however 5.1 is a hard wall so i need to know which voltages to oc and the safe voltages for them. I beleive PLL is the bus voltage but none of these youtubers "complete i9-9900k overclocking guide"s is anything more than set your multiplier to 50 and up your core voltage til your stable....
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post #1914 of 1924 (permalink) Old 09-14-2019, 02:38 AM
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Quote: Originally Posted by Kommando Kodiak View Post
I want to clock my ring bus beyond 5.1ghz as i have my cpu cores at 5.4ghz however 5.1 is a hard wall so i need to know which voltages to oc and the safe voltages for them. I beleive PLL is the bus voltage but none of these youtubers "complete i9-9900k overclocking guide"s is anything more than set your multiplier to 50 and up your core voltage til your stable....
uncore is tied to vcore. You'll need to keep bumping your vcore to get uncore to clock higher.
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post #1915 of 1924 (permalink) Old 09-14-2019, 02:39 AM
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Quote: Originally Posted by Sea Monkey View Post
*edit* UPDATE: I set my OC to 5GHz all-core with no AVX offset. Was able to complete the Blender BMW benchmark with a max core temp of 97ºC. Running OCCT on default settings for a bit and might do some additional stability testing, but it's looking good so far.
*edit2* Nope. Small FFTs in P95 26.6 thermal throttled and BSODed with WHEA_UNCORRECTABLE_ERROR.
P95 is a higher draw/bigger stress than blender benchmark. Just watch your power draw and how much vdroop you get when running blender vs P95 (non avx).

In terms of power draw: linpack>P95 with AVX>P95 non avx>AIDA>Blender>Realbench>Cinebench
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post #1916 of 1924 (permalink) Old 09-14-2019, 01:38 PM
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I want to exceed 5.1ghz on the ring bus, here are the settings.

Who can help me?
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post #1917 of 1924 (permalink) Old 09-14-2019, 01:46 PM
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Quote: Originally Posted by Kommando Kodiak View Post
I want to exceed 5.1ghz on the ring bus, here are the settings.

Who can help me?
Those PLL voltages are for sub-zero cold bug and high frequency (clock generation) stability, NOT for "core" stability from high clocks (instructions) or cache (ring) stability!
There is no benefit to changing these on air cooling, and in fact, they could even cause the clocks to crash, causing a "clock watchdog timeout".

The only thing you can change are CPU Core voltage or (sometimes) VCCIO (this affects L3 cache only, not L1 or L2 cache!!). Core and L1/L2 cache voltages are linked to core voltage.
There are NO processors I have ever seen that can do 5.1 ghz *CACHE* voltage stable on air cooling!

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post #1918 of 1924 (permalink) Old 09-14-2019, 02:08 PM
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Well, Falk, its a good thing I'm on a custom water loop then. Tell me what takes to get 5.1ghz on the cache and the voltages for VCCIO.
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post #1919 of 1924 (permalink) Old 09-14-2019, 04:24 PM
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Quote: Originally Posted by Kommando Kodiak View Post
Well, Falk, its a good thing I'm on a custom water loop then. Tell me what takes to get 5.1ghz on the cache and the voltages for VCCIO.
How can I tell you what to use when I don't have your CPU?
You need to find out for yourself. You can't ask people here.
You may need 1.45v, 1.50v or 1.60v. Every CPU sample is completely different. If it's so important to you, why don't you tell US what you need to get 5.1 ghz ring ?

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post #1920 of 1924 (permalink) Old 09-14-2019, 06:59 PM
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Quote: Originally Posted by Falkentyne View Post
How can I tell you what to use when I don't have your CPU?
You need to find out for yourself. You can't ask people here.
You may need 1.45v, 1.50v or 1.60v. Every CPU sample is completely different. If it's so important to you, why don't you tell US what you need to get 5.1 ghz ring ?
Well I thought the cpu was understood given the name of this thread being "9900k Overclock Results and Questions", but the thing i wanted to know you said you've seen some at 5.1ghz ringbus on water do you remember the vcores for those. You also mentioned the vccio voltage is what i needed to tweak instead of PLL so i wanted to know the safe voltage ranges for the vccio on i9-9900k
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