I9 9900k

shamus21 · 29 Jan 2019 at 16:28

Delid £500 Cpu Crazy :eek:

Distracted · 29 Jan 2019 at 16:45

shamus21 said:
Delid £500 Cpu Crazy

It's a want not a need. I want to do it because i can and lately pc building has sunk its claws into me. If i can exercise some restraint then i can run benches and tinker with the chip as is, then delid and do the whole lot again.

I'm spending more time messing with the hardware than using the software i bought it for

shamus21 · 29 Jan 2019 at 16:47

Distracted said:
It's a want not a need. I want to do it because i can and lately pc building has sunk its claws into me. If i can exercise some restraint then i can run benches and tinker with the chip as is, then delid and do the whole lot again.

I'm spending more time messing with the hardware than using the software i bought it for

I no exactly what you mean

Silent_Scone · 31 Jan 2019 at 17:40

Distracted said:
I'm itching to delid my 9900k

I don't need to, but the die frame is just sitting there teasing me. It's dancing with the liquid metal and Quicksilver that is near it...

Honestly wouldn't bother, at least not unless it's a reasonable sample to begin with (e.g. 5.1 sub 1.3v). On an already good CPU I'd be tempted to try direct to die.

Distracted · 31 Jan 2019 at 19:23

Silent_Scone said:
Honestly wouldn't bother, at least not unless it's a reasonable sample to begin with (e.g. 5.1 sub 1.3v). On an already good CPU I'd be tempted to try direct to die.

I was fortunate in that I had my pick of 5 cpus. The original one I was testing with was decent enough, but the one I eventually settled on is better and seems above average in terms of vcore needed for a given speed.
I don't know how well it scales but it will definitely do 5.1GHz at 1.3v

I'm not going to be using exotic cooling so losing the benefit of the STIM isn't an issue.

Distracted · 1 Feb 2019 at 04:25

Welp, the delid shaved 12 degrees off my core temps on average and is keeping the cores within a few degrees of each other for the most part, but they weren't that dissimilar to begin with. The temperature drop is significant and I'm pleased I went ahead, but the mounting of my EK block has been a right pita. I'm using the same Velocity block as Roman did in his video, and it is no mistake that he has left the washers off the mounting bracket. He doesn't mention it in the video, but leaving them on (they are there to protect the PCB) will prevent the waterblock from making contact with the CPU die. Even with mine removed the mount wasn't right, I had significant temperature differences between the cores so I am now using a Noctua mounting bracket and have the Velocity block screwed to that and all is as it should be.

I'm now thinking of keeping 5.2GHz as my daily, depending on the temps over the next few weeks, and of course the effect the rising ambient temp has as we move through winter.

As an update on the Maximus Formula XI VRMs since it was a topic of discussion several months ago, they are still performing flawlessly. I have just increased the frequency from 300 to 500 which I'm told should improve transient response at the cost of working the VRMs harder and therefore increasing their heat output, so if anything changes I'll come back with an update. But under water during stress testing they remained cool even with the frequency change so I don't anticipate any problems. Touch wood.

Silent_Scone · 1 Feb 2019 at 08:39

Distracted said:
Welp, the delid shaved 12 degrees off my core temps on average and is keeping the cores within a few degrees of each other for the most part, but they weren't that dissimilar to begin with. The temperature drop is significant and I'm pleased I went ahead, but the mounting of my EK block has been a right pita. I'm using the same Velocity block as Roman did in his video, and it is no mistake that he has left the washers off the mounting bracket. He doesn't mention it in the video, but leaving them on (they are there to protect the PCB) will prevent the waterblock from making contact with the CPU die. Even with mine removed the mount wasn't right, I had significant temperature differences between the cores so I am now using a Noctua mounting bracket and have the Velocity block screwed to that and all is as it should be.

I'm now thinking of keeping 5.2GHz as my daily, depending on the temps over the next few weeks, and of course the effect the rising ambient temp has as we move through winter.

As an update on the Maximus Formula XI VRMs since it was a topic of discussion several months ago, they are still performing flawlessly. I have just increased the frequency from 300 to 500 which I'm told should improve transient response at the cost of working the VRMs harder and therefore increasing their heat output, so if anything changes I'll come back with an update. But under water during stress testing they remained cool even with the frequency change so I don't anticipate any problems. Touch wood.

That is a nice CPU. I've had to settle for 5GHz AVX, and as it's a hardline build I'm not too fussed about fishing for a better CPU. Temps are fine. I've experimented with switching frequency, and haven't noticed any worthwhile change in stability. In your situation, I'd leave it at default as it's likely not worth the extra heat output in the loop. Nice results!

Distracted · 1 Feb 2019 at 12:27

Silent_Scone said:
That is a nice CPU. I've had to settle for 5GHz AVX, and as it's a hardline build I'm not too fussed about fishing for a better CPU. Temps are fine. I've experimented with switching frequency, and haven't noticed any worthwhile change in stability. In your situation, I'd leave it at default as it's likely not worth the extra heat output in the loop. Nice results!

Thanks. I was thinking that the VRMs responding to power demands quickly would provide more stability to the CPU as its requirements and load changed. Given that transient response is one of the major deciding factors for why Asus went with the fat 4 I'm going to stick with the higher frequency for a while and see if it makes a difference.
Plus, I replaced the stock VRM pads with fujipolys so I want to get my moneys worth from them

I'll keep an eye on it and if I need to I'll back it down. But right now the VRM temps hover right around the loop temp, which is where they were before the frequency change. Obviously if i see no benefit then I will return it to 300, but I've dropped a LLC level and so far at least I'm not seeing any instability. Whether that is a result of the switch I don't know for sure.

I may try for 5.3GHz to see what it takes now that I've got some additional thermal headroom, but I don't want to ruin the silicon by torturing it so I'm not sure how far I want to go.

moorhen2 · 1 Feb 2019 at 18:14

An hour into a run of Aida64 non FPU/AVX, at 5.1ghz, 1.270v in bios, full load voltage of 1.243v. Not too bad.

Distracted · 2 Feb 2019 at 20:19

Just changing the multiplier from 52 to 53 gives me a Cinebench score of 2303. I haven't tweaked the RAM or my OS or anything like that, right now I am playing with the CPU to see how high it will go. I imagine with tighter RAM timings and various OS tweaks the score would be higher at every multiplier.
Since I've not changed the vcore or llc or any other settings from those saved for 5.2GHz I haven't run Prime or anything too demanding, but Realbench will run with errors in HWiNFO64 (as expected) and other normal tasks complete without issue.
Without changing any other settings I'm surprised I was able to boot at all.

Distracted · 2 Feb 2019 at 21:59

What is CPU Standby Voltage? And should i be alarmed to see that on auto ASUS has it set to 1.617...

I cut that **** out as quickly as I noticed it.

I can get 5.3GHz stable but I start bumping into thermal limits in extended stress testing so I'm going to wait until I can get the Mo-RA3 and its additional 9 fans set up to deal with the additional heat before making sure I've got it properly stable.
I think that's as far as I can go on regular cooling with this CPU. 5.4GHz is almost certainly going to take me well over 1.4v for any kind of stability and I can't cool that.

...unless I open some windows and position the MO-RA3 just right... *thinking*

Outside of torture testing the 5.3GHz OC idles in the high 20s, browsing in the low 30s, gaming (so far) max of 61.

moorhen2 · 3 Feb 2019 at 12:14

Distracted said:
What is CPU Standby Voltage? And should i be alarmed to see that on auto ASUS has it set to 1.617...

I cut that **** out as quickly as I noticed it.

I can get 5.3GHz stable but I start bumping into thermal limits in extended stress testing so I'm going to wait until I can get the Mo-RA3 and its additional 9 fans set up to deal with the additional heat before making sure I've got it properly stable.
I think that's as far as I can go on regular cooling with this CPU. 5.4GHz is almost certainly going to take me well over 1.4v for any kind of stability and I can't cool that.

...unless I open some windows and position the MO-RA3 just right... *thinking*

Outside of torture testing the 5.3GHz OC idles in the high 20s, browsing in the low 30s, gaming (so far) max of 61.

CPU standby voltage should be left at auto, only used for sub zero overclocking, so this rail can be ignored.

Distracted · 3 Feb 2019 at 20:02

moorhen2 said:
CPU standby voltage should be left at auto, only used for sub zero overclocking, so this rail can be ignored.

Ty, that is what i read elsewhere but I also read that the default value for it is 1.0v. Obviously the board changing it to 1.6+v when I am not on sub zero cooling is alarming, so I have switched it from auto to a fixed 1.0v to be safe. Since I'm not using sub zero or below ambient cooling I presume that fixing it at stock will have no drawbacks.

I'm going to be monitoring the other auto settings more closely from now on to ensure they don't go wildly overboard for no reason. And in the future where possible I am going to enter fixed values for each setting to eliminate any uncertainty as a result of the auto setting. I don't want this CPU destroyed or degraded during my own tinkering, but I especially don't want it ruined by the motherboard doing its own thing and going wildly out of spec.

Nickolp1974 · 4 Feb 2019 at 12:57

Do you have an LN2 mode on your board? Check it's not enabled!
Nice job on the delid

tyler_jrb · 4 Feb 2019 at 13:15

9900k and new maximus XI code ordered to swap out my z370 setup.

Deciding to remove the liquid vrm cooling on my board so thought may as well just get a new board, then decided may as well just get a 9900k to go with it.

More of just an upgrade itch, new Ekwb velocity cpu block on its way to match my card, having dropped below £500 now and hopefully push me to start rendering more videos etc.

What kind of clocks, max volts etc are the norm on this chip?

I’m hoping for around 5ghz.

faceman123 · 4 Feb 2019 at 13:25

My friend RMAd his 9900k, no ETA for his rrplsreplac, anyone else been waiting ??

Distracted · 4 Feb 2019 at 13:39

Nickolp1974 said:
Do you have an LN2 mode on your board? Check it's not enabled!
Nice job on the delid

Tyvm.

I don't think so, but I'll go over the manual and check.

moorhen2 · 4 Feb 2019 at 13:50

Distracted said:
Tyvm.

I don't think so, but I'll go over the manual and check.

Your board doesn't have LN2 mode or switch IIRC.

Distracted · 4 Feb 2019 at 14:01

moorhen2 said:
Your board doesn't have LN2 mode or switch IIRC.

Thanks. I didnt think so, i think it is only on the high end boards. I will double check anyway to rule it out since it is a good idea and wont be difficult.

Edit - There's no sign of it on the board and no mention of it in the manual. Perhaps the motherboard UEFI is set to up the CPU Standby Voltage setting once a given frequency or voltage load is reached on certain CPUs. I don't know, but I'll leave it fixed at 1v for now.

Distracted · 4 Feb 2019 at 14:30

tyler_jrb said:
9900k and new maximus XI code ordered to swap out my z370 setup.

Deciding to remove the liquid vrm cooling on my board so thought may as well just get a new board, then decided may as well just get a 9900k to go with it.

More of just an upgrade itch, new Ekwb velocity cpu block on its way to match my card, having dropped below £500 now and hopefully push me to start rendering more videos etc.

What kind of clocks, max volts etc are the norm on this chip?

I’m hoping for around 5ghz.

The voltage and clocks vary a lot depending on the board, cooling and especially the quality of the silicon.

The best rough guide we have that takes a large number of cpus and tests them in a controlled way is the data from silicon lottery, see the spoiler below.

It is worth pointing out that their figures and settings are listed with stability on a 240aio in mind. Meaning that they can probably be considered conservative in terms of vcore so you may be able to go lower with the voltage at each step and with better cooling you will be able to go higher with the frequency.

Distracted said:
Silicon lottery is the only place releasing overclocking figures for a large number of 9900k samples with standardised testing.

They are seeing about 40% hitting 5GHz or higher at 1.3v with a -2 AVX offset. They bin for high stability on cooling like 240 AIOs so their numbers could be considered conservative.

For non AVX workloads and in a system with better cooling (and possibly sacrificing some stability,) the percentage that will hit 5GHz will be higher and possibly require less vcore to get there.

Distracted said:

Some updated figures regarding the silicon lottery.

Keep in mind their sample size and that it may not represent your own chances when buying a 9900k.

I think this is useful info for those overclocking. No info yet on why those particular voltages were chosen or any temperature data.

As of 12/07/18, 100% (no change) of tested 9900Ks were able to hit 4.8GHz or greater.

CPU Multiplier: 48

BCLK: 100.0

CPU Vcore: 1.275V

AVX Offset: 2

As of 12/07/18, the top 85% (+3%) of tested 9900Ks were able to hit 4.9GHz or greater.

CPU Multiplier: 49

BCLK: 100.0

CPU Vcore: 1.287V

AVX Offset: 2

As of 12/07/18, the top 41% (-5%) of tested 9900Ks were able to hit 5.0GHz or greater.

CPU Multiplier: 50

BCLK: 100.0

CPU Vcore: 1.300V

AVX Offset: 2

As of 12/07/18, the top 11% (-3%) of tested 9900Ks were able to hit 5.1GHz or greater.

CPU Multiplier: 51

BCLK: 100.0

CPU Vcore: 1.312V

AVX Offset: 2

Silicon lottery now have a larger sample size and as such the percentage of silicon meeting their requirements for each bin has changed.

As of 07/12/18 100% of 9900ks can hit 4.8GHz all core, while there has been an increase in the number of cpus able to hit 4.9GHz by 3% taking the number to 85%.

That's the end of the increases.

For 5.0GHz all core the percentage has dropped by 5% down to 41%. Almost 60% of 9900ks wont reach 5.0GHz all core, or roughly 3 out of every 5 9900ks are failing to reach 5.0GHz all core at the settings listed above.

Next a drop of 3% down from last month bringing the percent of 9900ks able to reach 5.1GHz all core to just 11%.
Just over 1 in 10 of the samples they are binning can hit 5.1GHz stable all core at their specified settings.

As always with these numbers there is no telling how representative of the 9900k supply as a whole the stock silicon lottery receives is. However as they bin more CPUs the numbers should more accurately reflect the silicon lottery for those considering buying retail or tray.

Finally, still no 5.2GHz bin listed. This doesn't mean they don't exist, there are probably 5.1GHz samples that will do 5.2GHz, but judging by the fact that no one is offering binned 5.2GHz 9900ks (when there are clearly people willing to pay for it) the number of stable 5.2GHz chips must be tiny.

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