>> siulau mATX'a nebent nori amzinai aiskintis
>> koks ten portas su kuo ir ka sharina. Na nebent del to antro m.2 

> Sito nesupratau, galima placiau?

B360 turi maziau HSIO (24vnt.) ir PCIe lanes (12vnt.)
H370 - HSIO (30vnt.) ir PCIe lanes (20vnt.)
Z370 - HSIO (30vnt.) ir PCIe lanes (24vnt.)

Tarkim su PCIe bus aiskiau.
i5-8400 videlkai duoda PCIe x16 ir chipsetui berods 4 linijos "8 GT/s DMI3" 
[Is PCH-H I/O -- CPU Interface - DMI Gen3 x4]

Chipset'ui tas DMI kaip PCIe iki proco (ir ju tera 4 linijos, t.y. viskam 32GT/s)
I kita puse B360 gali paleisti 12 lanes to PCIe.

Normalus M.2 portas noretu 4 lanes (4*8=32GT/s)
Lieka 8vnt. .. o ziurek cia:

https://www.gigabyte.com/Motherboard/B360-AORUS-GAMING-3-rev-10#sp

1 x PCI Express x16 slot, running at x4 (PCIEX4)
   * The PCIEX4 slot shares bandwidth with the PCIEX1_2/PCIEX1_3 slots. 
   The PCIEX4 slot operates at up to x2 mode when the PCIEX1_2 or PCIEX1_3 slot is populated.
1 x PCI Express x16 slot, running at x1 (PCIEX1_3)
2 x PCI Express x1 slots (PCIEX1_1, PCIEX1_2)

Vertimas - visiems jiems skirta 5 lanes.
PCIe x16 slot'as yra, kuriame pralaidumas toks pats kaip PCIe x1 slote, tik kad viziskai i ji "telpa".

Lieka 3vnt.:
Antrasis - M.2 connector (Socket 3, M key, type 2242/2260/2280 SATA and PCIe x2 SSD support) (M2P_16G)

Siam isskirta 2 lanes.

Taigi .. matkeje daug PCIe portu, taciau tik videlkos PCIe x16 pilnavertis.. 
Aisku ner totali tragedija - gali gauti dar viena PCIe x4 (PCIEX4) 
ir viena paprastuti PCIe x1 slots (PCIEX1_1), t.y. tiesiog "pamirsti apie PCIEX1_2 or PCIEX1_3"

HSIO tarkim iliustruoju per sita lentele:
https://imagescdn.tweaktown.com/content/8/4/8482_03_intel-z370-motherboard-buyers-guide.png



>> toki susilipdziau:
>>
>> Gigabyte b360 m AORUS Gaming 3
>> https://www.amazon.de/gp/product/B07BKJV4QQ/ref=ox_sc_act_title_3?smid=A3JWKAKR8XB7XF&psc=1
> 
> siulau mATX'a nebent nori amzinai aiskintis
> koks ten portas su kuo ir ka sharina. Na nebent del to antro m.2 
>