Question My motherboard gives a RAM when I turn my PC on. When I then turn it off and back on it does not have the issue and POSTs.

[CauyG217]

My motherboard error "55" which is "Memory not installed" when I turn my PC off from being working and then back on. When I then turn it off from not working and back on it does not have the issue and posts. I recently installed more RAM and a new Sound Card. Does anyone know how to fix the RAM issue? I have reseated the new ram once already. My CPU is not currently overclocked, nor has it ever been.

Specs:
Motherboard: ASUS ROG Maximus X Hero (WiFi AC)
CPU: Intel i7-8700k
CPU Cooler: EVGA CLC 240 Liquid/Water CPU Cooler
GPU: EVGA GeForce RTX 2070 XC Black Edition Gaming
RAM: 16Gb Corsair Vengeance RGB
More RAM: 16Gb Corsair Vengeance RGB Pro (NEW)
Sound Card: Creative Sound Blaster Audigy Rx (NEW)
PSU: EVGA SuperNOVA 750 G2
SSD: Samsung 860 Evo 500GB
HDD: 2 WD Blue 1TB
Case: Nzxt H440 Mid Tower Computer Case

DxDiag: https://pastebin.com/FPvXaBBg

 

[alexoiu]

How have you installed the old and new RAM? Slots 1 and 3 old, 2 and 4 new, or slots 1 and 2 old, 3 and 4 new?

 

[CauyG217]

1 & 3 New, 2 & 4 Old. The old ones have been in 2 & 4 since I built the computer and always worked fine with no errors.

 

[alexoiu]

Have you tried clearing the CMOS (unplug the power cord and remove the CMOS battery for a minute)?

 

[CauyG217]

I have not cleared the CMOS, I can do that if it stops working again, For now though, I changed the RAM to a 1 & 2 old 3 & 4 new and now it has posted 3 times with no issue. I should also mention that installing the RAM 1 & 3 old 2 & 4 new never posts, unlike the opposite which posts every other power cycle. One final question I have is since the motherboard is a dual channel motherboard will that majorly impact performance?

 

[alexoiu]

It's weird, but since working... Theoretically, for dual channel, identical RAMs have to be installed in 1,3 or 2,4.