installed RAM 16 (7.9 usable)

Also, when you put the RAM in did you install it in the right order ?
For Asus it's A2 then B2 then A1 and B1.
A2 is second ram slot away fromcpu and B2 is the far right slot.

There geenerall isn't a setting for single or dual channel. If you install the ram in the order your motherboard manual specifies and then do F5 optimized defaults, then do any UEFI/BIOS customizations you want followed by pressing F10 to save your settings the motherboard is smart enough to know whether you have single/dual/quad channel ram installed in your PC.

medo91 said:

I formated my windows and installed new one. Also i did flash for new bios and also did f5 to defult. I cleaned with air the slot carefully. Only thing i didn't do yet is the rtc change. I will try and come back. But i can't find setting for single to dual channle in asus utilities?

CountMike said:

Dual or single channel may be just a function of RAM sticks being in pairs in each of 2 IMCs (Internal Memory Controller) in the processor. A pair of same RAM sticks in one IC channel will run in dual channel. Try them in pairs and see if any channel is not working properly.

Nothing changed for all tries soo far

BRKKAB said:

Also, when you put the RAM in did you install it in the right order ?
For Asus it's A2 then B2 then A1 and B1.
A2 is second ram slot away fromcpu and B2 is the far right slot.

Could you telm what the right order for my ram from A1,A2,B1,B2
This is my ram serial or model
0A04C350
0F040954
0E040D54
0E040461

BRKKAB said:

Also, when you put the RAM in did you install it in the right order ?
For Asus it's A2 then B2 then A1 and B1.
A2 is second ram slot away fromcpu and B2 is the far right slot.

Plankton said:

Your first attachment clearly shows/states your RAM is in single channel. You must change that to dual channel as Berton suggested. Consult your mobo manual to do this.
http://dlcdnet.asus.com/pub/ASUS/mb/...R20_V3_WEB.pdf

I read it but nothing about changing from single to dual

BRKKAB said:

Also, when you put the RAM in did you install it in the right order ?
For Asus it's A2 then B2 then A1 and B1.
A2 is second ram slot away fromcpu and B2 is the far right slot.

BRKKAB said:

I also know from experience with my old pc's Asus Sabertooth 990 FX R2.0 mobo and AMD FX 8350 cpu that the UEFI doesn't like 2400MHz RAM, you need to keep it at the 2133MHz. settings in the UEFI or you'll have issues.
I know this because I upgraded the RAM in it to DDR3 2400MHz RAM and it wouldn't work as DDR3 @$))MHz. RAM with the Asus mobo and FX 8350 cpu. It has to be set in the UEFI as DDR3 2133MHz. RAM.

Do you have setting for that to try?

BRKKAB said:

Also, when you put the RAM in did you install it in the right order ?
For Asus it's A2 then B2 then A1 and B1.
A2 is second ram slot away fromcpu and B2 is the far right slot.

CountMike said:

Dual or single channel may be just a function of RAM sticks being in pairs in each of 2 IMCs (Internal Memory Controller) in the processor. A pair of same RAM sticks in one IC channel will run in dual channel. Try them in pairs and see if any channel is not working properly.

I already know its channel 3 and 4 but then what

BRKKAB said:

Also, when you put the RAM in did you install it in the right order ?
For Asus it's A2 then B2 then A1 and B1.
A2 is second ram slot away fromcpu and B2 is the far right slot.

CountMike said:

If all 4 RAM sticks are same than order doesn't mater

A1 and A2 these two not working if i install only ram on the them the pc never boot but if i add one more in b1 or b2 directly gives me 4gb as the 1st ram. If the order not the problem and the aetting is default and the ram all same type and company and bought togther then what the problem