I've just upgraded from a 6 year old PC I built to a new one. B450 Carbon motherboard with a 3700x and GTX 1070.
I had a bunch of issues which came down to the BIOS needing updated which I did. After this, the EZ Debug LED would get stuck on DRAM and not go past.
So running dual channel, I can't get past POST. I removed 1 stick of RAM and it works fine (I'm using it now), but of course I'll have only single channel and 1 useless RAM stick on my desk.
I'm using the Corsair Vengeance LPX DDR4 3200 MHz C16 XMP 2.0 RAM kit (2x16GB) - bought new as a kit together.
I tried:
1 RAM stick in each slot, all 4 worked fine.
2 RAM sticks in every combination (1 & 2, 1 & 3, 1 & 4, 2 & 3, 2 & 4, 3 & 4) none worked. The recommended one in the manual is 2 & 4.
I reset the CMOS and went back to BIOS defaults so XMP was disabled. Since this I have enabled it for now, but I'm only using 1 RAM stick.
Both sticks of RAM work fine as well when they're used individually but together they don't want to work.
The Mobo, RAM & CPU are all brand new. I had a few niggles installing the CPU and ended up bending a few pins on the CPU (male) but straightened them out and it runs fine.
To me it doesn't seem like the RAM is at fault nor the motherboard slots, as all 4 slots work individually.
Any ideas what else I can check? Maybe some BIOS settings that I may have missed?
I had a bunch of issues which came down to the BIOS needing updated which I did. After this, the EZ Debug LED would get stuck on DRAM and not go past.
So running dual channel, I can't get past POST. I removed 1 stick of RAM and it works fine (I'm using it now), but of course I'll have only single channel and 1 useless RAM stick on my desk.
I'm using the Corsair Vengeance LPX DDR4 3200 MHz C16 XMP 2.0 RAM kit (2x16GB) - bought new as a kit together.
I tried:
1 RAM stick in each slot, all 4 worked fine.
2 RAM sticks in every combination (1 & 2, 1 & 3, 1 & 4, 2 & 3, 2 & 4, 3 & 4) none worked. The recommended one in the manual is 2 & 4.
I reset the CMOS and went back to BIOS defaults so XMP was disabled. Since this I have enabled it for now, but I'm only using 1 RAM stick.
Both sticks of RAM work fine as well when they're used individually but together they don't want to work.
The Mobo, RAM & CPU are all brand new. I had a few niggles installing the CPU and ended up bending a few pins on the CPU (male) but straightened them out and it runs fine.
To me it doesn't seem like the RAM is at fault nor the motherboard slots, as all 4 slots work individually.
Any ideas what else I can check? Maybe some BIOS settings that I may have missed?
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