OC RAM and iGPU only - a10 5800k ASRock FM2A85X Extreme4-m

Radvach

Honorable
Nov 24, 2013
2
0
10,510
First i want to say: Hello.

ASRock FM2A85X 1.80 bios
a10-5800k
Geil EVO Corsa 2x4GB 2400mhz 11 13 13 30 v1.65
Cooler Master hyper 212 EVO
550W Fortron FSP Raider 80 PLUS Bronze

I cant get my PC stable with ram mhz above 1866mhz.
The cpu speed seems to be ok so i don't really want to OC cpu at all. But if the CPU needs to be OCed to satisfy my needs (RAM at 2400mhz), ill do it.

I read if i use XMP profile for RAM it will work on 2400mhz automatically but i cant do it right i guess.
I read that above v1.275 for cpu NB/GFX, it is not healthy.

My mobo was with BIOS 1.20, but i flashed last bios 1.80, because everytime i put some settings to NB mhz and NB gfx volt or ram mhz and volt, something changes. I mean if i put NB 2400mhz x12 + v1.275 and i change to xmp profile and ram mhz to auto, NB/GFX volt get automatic to v1.4 which is above 1.275 that i read it is safe. I though my bios is not ok and i flashed it. But with 1.80 it is the same. I think the profile is changing it mhm? But for 2400mhz x12 NB im scared to stay at v1.400
When XMP profile changes my NB volt to 1.4 i can change it back to v1.275.
I tried to run pc at v1.275 NB 2400mhz (x12) and XMP Profile v1.65 RAM 2400mhz with timings 15 17 17 35 but as soon as i get to windows desktop i got freez or BSOD.

v1.275 + 2200mhz x10 NB and ram v1.65 2133 mhz same timings i got to desktop and when i run prime95 after 30 min ONE of the FOUR self-test stopped
"FATAL ERROR: Rounding was 0.49xxxxxx, expected less than 0.4"

Can you people tell me how to start? What should i do first. Why the volt and settings are changing by itself. With what timings. I want to get my ram run stable at 2400mhz because i want to get this iGPU to be faster.
GPU clock should be 800mhz but i see it work at 304, sometimes 633mhz and 800mhz.
If i get my ram to work at 2400mhz stable ill try to OC gpu clock after, but memory first.

At this moment
VDDC v0.949 and sometimes v1.274. Is that VDDC other name for NB GFX voltage?
gpu memory 933mhz
In ASRock Extreme Tuning Utility cpu nb/gfx voltage says 1.17500 V
ASRockAXTU
ASRockAXTU2
ram v1.165? too low?
GPU z

Ill appreciate if you people help me get my ram work at 2400mhz stable.