I have a z170 Maximus VIII hero and i just purchased a 9900k which is R0 revision. Which Cpu microcode do I it would seem 906ED would be the correct one. Also, do I just use one microcode or more? I see screenshots of other people's bios file and they have multiple micro codes?

Zitat von itsakjt im Beitrag #1470

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Thanks. And yes, if you follow the trace from pin 102 (SKT_OCC pin) of the NCT6793D chip, you will see it goes to that resistor. According to datasheet, that pin should be grounded for socket occupied to be true. Hence connected that to the nearest ground pad I could find.

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Zitat

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"Following the trace from Super I/O instead from CPU socket" – life can be so easy. For people brighter than me :-)
But the other end of the resistor should than be connected to socket, or? So a lateral instead of diagonal solder from the empty pad you used should work as well.

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I thought the same. However to check that, I installed my i5 7600K CPU since it already has those two pins shorted internally. When I checked near the Super I/O for grounds, surely, ground was present on pin 102 with the 7600K CPU connected and the end of the resistor to which pin 102 is connected but not the other end of the resistor which should have been had it been connected to the CPU socket. Removed CPU - pin 102 and the connected end of the resistor were no longer grounded. Hence the diagonal connection. ;)
Now I have no idea what that resistor does. Pretty sure the board will even work without that resistor.

You can select all the microcodes. That board has a 16 MB BIOS chip and should be no issues. Very similar to the Maximus VIII Ranger that I am using.

Thank you

These are the settings i picked do these look all right for my mobo and a 9900k R0 revision

Thanks

Select ME 11.7.0.1229 Consumer and apply the PCIE 1440 fix too. You can also apply the 128 GB RAM support from the other tab. I did all those to ensure maximum compatibility across any CPU.

Zitat von itsakjt im Beitrag #1477

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Select ME 11.7.0.1229 Consumer and apply the PCIE 1440 fix too. You can also apply the 128 GB RAM support from the other tab. I did all those to ensure maximum compatibility across any CPU.

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i have tested out 2x 9900k revision R0 on my maximum hero VIII and haven't had any luck getting to 4.9ghz no matter what the voltage am i missing something here? Or is the board not capable.

Also, my package power only gets displayed as 4 watts and my CPU Vcore is apparently at 1.4v and running linpack 2019 occt on a 360 AIO my package temp under load is only 94c which im sure if i was really runing this voltage i would be thermal throttling considering how hot the 9900k gets.

In case of my Maximus VIII Ranger, for the i5 9600KF, I set load line calibration to Level 3 and increased the voltage as offset + 0.20 for 5 GHz. I have kept SVID enabled. This results in an effective VCore of around 1.34V (reported by CPU). However, the motherboard "thinks" peak voltage is 1.504V. I read the info and found out that you should always consider the voltages at reported by the CPU and not the sensor on the board.
Also, take a look at siliconlottery.com/pages/statistics

For the 9900K, 4.9 GHz with AVX on is only possible for 5% of the chips.
BTW, for how much did you get the 9900K?

I bought 2 samples a 9900kf from ebay for £220 and a 9900k from scan for around £270 (retail) i know that seems steep for an old cpu but it seems the 9900k can be just as fast as intel newest cpu as the ipc is the same skylake. I did try stock settings and i was still getting whea errors on stock settings. I did some deep diving on the internet and found a Russian website with a guide for someone using the same board as me. What i noticed is that he was using a bios version from 2016 Version 2202 and had mentioned there is an issue with 9900k on 3xxx bios revisions but is fine for cpus with less cores like 9700 / 8700 etc.. So I followed his settings on the old coffee lake tool and reflashed it. I have been running small ftts for 9 hours on stock and no whea errors so far so it seems stable at stock. I am just testing 4.7ghz on small ftt test with a vcore of 1.280 as reported by cpuz.

Issue with 3xxx BIOS was "will not boot at all with more than 15 threads", but thankfully svarmod got that one solved a short time ago. OC should, if different at all, be better with 3xxx, as it at least incoporates Asus' optimisations for KBL.
BTW: Current RKL CPUs have quite a different architecture to SKL and are a fair bit faster at the same clock (also hotte). The last SKL designs were CML which indeed are not faster per clock and core than an 9900K (or 6700K for that matter), but come with up to 10 cores. Sadly I have so far been unable to find a pinout of LGA1200. But if there are no surprises, a 10900K could be runable as well (with physical mods to socket of course).

Would having ME disabled have an effect (HAP-BIT), I am trying to enable this time but I have no idea what the difference is and what does this even do. I was a bit disappointed again to get a WHEA error on SMALL FTTS on OCCT after 1 hour at 4.7ghz with a vcore of 1.297 I've upped the voltage a bit but to me, that seems strange as nearly all 9900k should be able to reach this so I am not sure what is going on. I am running load line calibration 5 to allow a very small vdroop on intensive tasks hence the vcore number is just over 1.30 when idle.

Thank you for mentioning the 3xx bug was fixed i guess i wasted me time on the 2xx bios :(

ME should not have an effect. Once the system is running (and it could be disabled), the IME is mostly responsible for security aspects (e.g. TPM). But afaik it only initialises the CPU and does not care for it afterwards.

Thanks for the input much appreciated. I will continue on with the tests if I cant get any stability other than 4.5ghz i will probably just take the cpu back and just invest in something else its a 2nd pc and this whole thing i discovered was meant to keep costs down. However, running at 4.5ghz is probably no better than my 6700 at 4.6ghz apart from having double the physical cores ofc which helps in newer games ofc.