> aciu uz patarima, ka manote apie situs ramus
> https://www.1a.lt/kompiuteriu_komponentai_tinklo_produktai/atmintis_hdd_ir_ssd/ram_atmintis/corsair_vengeance_rgb_led_series_64gb_3000mhz_cl16_ddr4_kit_of_4_cmr64gx4m4d3000c16

Brangoki (per 32GB gaunasi daugiau nei 100Eur nuo tu HX426C15..)

Net jei gaudyt tuos didesnius daznius ir timings:
688 - 
https://www.1a.lt/kompiuteriu_komponentai_tinklo_produktai/atmintis_hdd_ir_ssd/ram_atmintis/corsair_vengeance_lpx_black_64gb_3000mhz_cl15_ddr4_kit_of_4_cmk64gx4m4c3000c15
672 = 2 * 336:
https://www.1a.lt/kompiuteriu_komponentai_tinklo_produktai/atmintis_hdd_ir_ssd/ram_atmintis/gskill_ripjawsv_red_32gb_3000mhz_cl16_ddr4_kit_of_2_f43000c16d32gvrb

> ar jie dera su motininine, procesoriui ?

Teoriskai turetu visi tikt, smagiau rasti pagal matkes "RAM support"
(tipo testuoti ir patvirtinta, taciau sarase nesantys dar nereiskia, kad netinka)

https://www.gigabyte.com/Motherboard/X399-AORUS-Gaming-7-rev-10#support-doc
Memory Support List 0.19 MB 2018/04/23
http://download.gigabyte.eu/FileList/Memory/mb_memory_x399-aorus-gaming7_v1.pdf

Ryzen'ai manes netraukia.. berods kazka googlas pypsejo,
kad kazkokius tam tikrus Samsung'o chip'ais gal labiau megsta..
Dar nzn kaip ten geriau Single Sided vs Double Sided

https://www.reddit.com/r/Amd/comments/62vp2g/clearing_up_any_samsung_bdie_confusion_eg_on/
http://www.tomshardware.co.uk/forum/id-3651580/samsung-die-guide.html

Bet gal cia aktualu jei reikia kelis mm uzsimest, pas ka ilgesnis.. t.y. kokiems nors top-overclockers..

Greiciau Intel'is paleistu Z390 + i9-9900K 8C/16T, gal nereiketu listi i ta LGA2066 / TR4 segmenta..
https://www.tweaktown.com/news/62366/intel-core-i9-9900k-teased-new-8c-16t-cpu-z390-chipset/index.html