Sierra 10.12.6 on i9-9900 & Z390

[StevenToast]

Is that possible? Or at least High Sierra? I can't use Mojave due to software that I use being incompatible with Mojave (yet).

[MaLd0n]

[ref]StevenToast[/ref], i think sierra 10.12.4+ work native, take one shot

[StevenToast]

Will do it once I have the parts, Cheers!

[erroruser]

yes its possible even with a rx 580 an your 1060 shall work up to high sierra

i have sierra also on mine an works but i used a 580 to test

Added in 30 seconds:

yes its possible even with a rx 580 an your 1060 shall work up to high sierra

i have sierra also on mine an works but i used a 580 to test

[StevenToast]

@erroruser after very extensive research I've made up a part list

i9-9900K + Noctua NH-D15s cooler (compatible with both motherboards below)

Corsair Vengeance LPX 3200 MHz 2x16GB

NZXT H200 (mini ITX) or H400 (micro ATX) - not sure if H200 will offer best cooling, so I'm thinking H400 will have more space for the air to move inside the case. I use a small single-fan video card - EVGA 1060 and for the future I will use the minimum for macos to work, not a fan of games/video editing, just audio workstation

and 2 motherboard options

- ASUS ROG Strix z390-i (mini ITX)

or

- Gigabyte AORUS PRO z390-i (mini ITX)

Which of these two offer the best compatibility with macOS/hackintosh? I don't care too much about on-board sound, I will use USB audio card.

What I want to work: power, sleep, proper CPU power management (and also to support overclock to 5GHz), USB ports, some people reported onboard bluetooth working for one of these boards, would be nice to have it for mac BT keyboard (but maybe I'm mistaken) and finally, I want the motherboard to be compatible with some M.2 adapter to WIFI card (I am not sure exactly what parts are needed for wifi to work for AirDrop, maybe you know more about this topic and can recommend a working adapter & wifi card on ebay/aliexpres)

[erroruser]

with nvidia card you'll have to go with high sierra an both boards are equally good you could flip a coin lol

for wifi i would think this one https://www.newegg.com/Product/Product.aspx?Item=0XM-00JK-00033

an when you have dsdt completed will fix alot of the things you would like "power, sleep, proper CPU power management (and also to support overclock to 5GHz)" for usb there are guides to help have it port limit from this guide https://Olarila.com/forum/viewtopic.php?f=79&t=7370

[StevenToast]

Two more things:

1. Does DDR4 running at 3200 MHz vs 3000 MHz makes any difference? I'll pick the 3000 MHz version because is cheaper, my only concern being about compatibility: would it work with a 5GHz OC CPU?

2. The Fenvi FV-T919 is a PCI card, I won't have any ports available in my mini ITX build, is there any USB wireless card to work along the Orico BTA-403 bluetooth? My router is literally on my PC tower.

[erroruser]

Two more things:

1. Does DDR4 running at 3200 MHz vs 3000 MHz makes any difference? I'll pick the 3000 MHz version because is cheaper, my only concern being about compatibility: would it work with a 5GHz OC CPU?

2. The Fenvi FV-T919 is a PCI card, I won't have any ports available in my mini ITX build, is there any USB wireless card to work along the Orico BTA-403 bluetooth? My router is literally on my PC tower.

if the ram is for oc they will be fine i have this in my pc

https://www.amazon.com/gp/product/B07D5SN1ZK/ref=ppx_yo_dt_b_asin_title_o06_s00?ie=UTF8&psc=1

tp link w725n will work

[StevenToast]

Thank you for getting back to me with valuable info.

Your DDR is 3200 MHz. Can I run a 3000 MHz with a 5 GHz CPU? I don't want to overclock the RAM, just the CPU.

Here's the thing: in audio production, the music production software can't load all cores equally (it's a fact, related to processing latency). However, this software often tends to load 1-2 cores at 99% (while the rest are at 50-60%) - resulting an average load of around 70% per wntire CPU. So I only need CPU OC, so a single core can handle a bigger load load without being overload (because if just one core reaches 100% the audio playback becomes unstable and eventually it stops). Many times, 4.5 GHz cannot playback a busy project but 5.0 GHz can.

So, can I save €25 on using 3000 MHz memory? My question was if CPU OC will automatically increase DDR clock, or they are completely separate nowdays?

I am currently on a 2700K desktop (and MacBook Pro) and things changed tremendously these years. I studied for this configuration (well, first I was thinking on z370 but meanwhile i9 became available at sort of decent price on amazon...) for weeks on hackintosh forums, and now I am trying to clarify some things before pulling the trigegr on the parts.

[erroruser]

ive seen other without oc do just fine with i7 8700k an z370-390 an they have said they have good results all in all its how you set your acceleration for the igpu an dgpu as i am sure that you know that your gtx card will only work with high sierra an not mojave

[StevenToast]

Yes, I am aware. Sierra would be my favourite OS (as it's the last that is supported by my Allen & Heath audio card). High Sierra is also a good option for music production, I could do the next two years with it. Eventually I could purchase a (entry-level) comaptible ATI video card as I'm expecting this build to last the next 5 years.

[erroruser]

i would recommend the sapphire rx 590 as it is compared to a 1070 an is at a good price under $300 usd if im correct the only draw back of it is not supported in sierra

[StevenToast]

Video card not this year Also, weird I didn't think of checking earlier, on ark.intel.com the recommended memory for i9 is

DDR4-2666, so I'd bet that my innitial idea to use Vengeance LPX @ 3000 is going to be enough for this project. Cheers for chipping in!

PS: I just found an old Archer T2UH (USB) in my cables drawer, works perfectly on High Sierra and also foudn driver for Mojave so yay!