My RAM is acting really weird

[ndende]

I built a pc for the first time a couple of weeks ago, it went really well until I learned i needed to replace my RAM to maximize efficency. (my motherboard has 8 DDR4 slots so i needed to play my 4 ram sticks in slots 1,3,5,7 and I originally had it 1,2,3,4) when i swapped my pc wouldnt turn on, i tried restarting while have 1 stick in, 2 sticks in etc. until I got it working, then I finally got it all in but it only worked when i had it in slots 5,6,7,8. I am scared of breaking anything because it took a whiile to get the pc running again.

But today when I started my PC it started really slowly and my motherboard displayed code 64 for a while which in the manual states "CPU DXE initialization is started" which after a google search told me it had something to do with RAM, after about 40 seconds it finally started but I am now really worried it wont work next time i restart my PC and im just paranoid because I spent a lot of money for this PC

Any help is very appreciated!

Specs if needed:

(RAM says unknown but it's 4x Corsair Vengeance 8GB DDR4 2666MHz)

 

[helpstar]

Which motherboard is it?

 

[ndende]

On the motherboard box it came with it says; ASUS Motherboard X99-A 5-WAY OPTIMIZATION

 

[helpstar]

Have a look at the manual. From left to right: 1,3,6,8. Or to be more accurate, all in the same grey colored slots

DIMM A1
DIMM B1
DIMM D1
DIMM C1

 

[ndende]

with the numbers i just meant the slots, the manual reads as follows:

1: DIMM A1
2: DIMM A2
3: DIMM B1
4: DIMM B2
5: DIMM C1
6: DIMM C2
7: DIMM D1
8: DIMM D2

so currently i have it at DIMM C1, C2, D1, D2


The problem is my RAM is acting up a lot, and I dont even dare move them anymore. In my original post I said that the computer refused to turn on at all and I got an error code shown on my motherboard when I siwtched them around and it took a good while of swapping the RAM back and forth to get it to work

 

[helpstar]

so you mixed it up
your numeration logic is a bit confusing:

from left to right (dimm slots left to the cpu) and right to left (on the right of the cpu socket)


put them into the same grey colored slots and don´t put any into the black colored slots


edit:
like this:
https://asksender.com/askwp/wp-content/uploads/2015/04/asus-x99-deluxe_installed.jpg

it´s totally normal, if the configuration is not set right, that the motherboard gives error or refuse to boot

 

[ndende]

But that's not the issue, when I first tried to switch to these thats when my computer stopped turning on, when i had it in all the grey slots that's why I was forced to use the last 4 slots because that was the only way it booted from

 

[tom_spinach]

You can put them all on the A1,A2,B1,B2 Slots for 2x dual channel, All in the Grey Slots is 1x quad channel. both should work, but depending on Memory quad channel is sometimes tricky. what Memory you got?

 

[tom_spinach]

and update your Motherboard to the latest Versions, this can help a lot!

 

[helpstar]

now we are a synchronized 😉
if the quad channel grey slots don´t work, update the BIOS of the motherboard with a ram config which works for now

check if the ram works after the update in the recommended grey slots

if it doesn´t boot, have a look at the memok button. Press it till the LED next to it starts blinking. Wait until the PC tries to reboot. If it doesn´t work then, check the cpu socket of the motherboard for bent Pins.


edit
are you using a dedicated graphics card (which?) or the onboard graphics?
try using DVI port to connect to the monitor instead of HDMI