Asus M5A97 R2.0 memok led beeps

[Astherion]

On every boot i have to open the case to ensure that the system boots.
I somehow see that i can force it to boot using memok without saving any changes. However i cant get a certain error for the memok beeps because one of the following happens:
1. 2 led beeps and boots (post success beep)
2. 5-10secs led beeping then boots (post success beep)
3. 5-10secs led beeping then 4 speaker beeps, no boot (post success beep)
4. 2 short led beeps, 1 long led beep then 4 speaker beeps, no boot (no post success beep)
5. 2 short led beeps then 4 speaker beeps, no boot (no post sucess beep)

Any of these can happen either if i change anything or not and hit 'Save and reset' in uefi bios.
Im sure its not a ram issue because i ran memtest for 2 hours without errors found and i can use the pc if i can force it to boot with memok.

Can you help me with setting up the bios so it can boot on the first attempt?
Only settings i used to change were to set ram to work on 1600mhz rather than 'Auto' frequency.

Specs:
CPU: AMD FX-6300
Mobo: Asus m5a97 r2.0, bios version 2201
Ram: Kingston hyperx 1600mhz 4gb 4x1, model: KHX1600C9D3/4GX
Video: Sapphire R7 260x 2gb gddr5
PSU: Thermaltake TR2 500W 75% eficiency
HDD: Western Digital 1TB

 

[i7Baby]

Is the ram on your mobo memory support list? http://www.asus.com/au/Motherboards/M5A97_R20/HelpDesk_QVL/

 

[Astherion]

Is the ram on your mobo memory support list? http://www.asus.com/au/Motherboards/M5A97_R20/HelpDesk_QVL/

It is, but not as a 1-kit. It allows 2 and 4 kits (2 on the bottom):

I can use the pc anyway, but its annoying to open the case on every boot

 

[i7Baby]

If its not one kit, then you can get these sorts of problems.