Question HELP! PC will boot with 1 stick of ram, but not 2

[Stepnslash]

Im refreshing my old build with a new cpu, mobo, ram and ssd. I got everything and put it together, but it now wont boot (even to just bios) with my 2 new sticks of ram. it runs fine with 1 though. It gives me a red led labeled cpu when i try 2 sticks. I confirmed that its not the actual ram sticks by swapping them out and using both to boot on their own. If anyone can shed some light that might help would be greatly appreciated
My specs are
CPU: Amd Ryzen 7 5800x
MOBO: Tomahawk B550
Ram: G Skill Ripjaw V serie ddr4 3600
Gpu: Evga 980ti

 

[Lafong]

Were these 2 sticks purchased as a single unit in a single package.

Or separately?

 

[Stepnslash]

Were these 2 sticks purchased as a single unit in a single package.

Or separately?

I bought them as a set. 2 in 1 package

 

[EyyMunchian]

Im refreshing my old build with a new cpu, mobo, ram and ssd. I got everything and put it together, but it now wont boot (even to just bios) with my 2 new sticks of ram. it runs fine with 1 though. It gives me a red led labeled cpu when i try 2 sticks. I confirmed that its not the actual ram sticks by swapping them out and using both to boot on their own. If anyone can shed some light that might help would be greatly appreciated
My specs are
CPU: Amd Ryzen 7 5800x
MOBO: Tomahawk B550
Ram: G Skill Ripjaw V serie ddr4 3600
Gpu: Evga 980ti

When you swap the sticks out, do you put them in their respective motherboard slots? For example, stick 1 in slot 1 and stick 2 in slot 2 or did you swap stick 1 in slot 1 with stick 2 in slot 1?

 

[Stepnslash]

When you swap the sticks out, do you put them in their respective motherboard slots? For example, stick 1 in slot 1 and stick 2 in slot 2 or did you swap stick 1 in slot 1 with stick 2 in slot 1?

i swapped sticks in both slots. stick 1 in slot 1 and slot 2, and vise verca

 

[DaleH]

i swapped sticks in both slots. stick 1 in slot 1 and slot 2, and vise verca

Per the manual you should be using slots A2 and B2. Is that what you're using?

 

[Stepnslash]

Per the manual you should be using slots A2 and B2. Is that what you're using?

yes. I put them in the other configuration aswell and it still didnt work

 

[dwd999]

yes. I put them in the other configuration aswell and it still didnt work

Is this one of those motherboards with only 1 clamp on the right side of the stick? From my own erroneous experience, you have to be careful in seating the left side of the stick fully in the slot before closing the right clamp. Its almost like you need a magnifying glass to examine the seating of the stick, at least I did.

 

[Stepnslash]

Is this one of those motherboards with only 1 clamp on the right side of the stick? From my own erroneous experience, you have to be careful in seating the left side of the stick fully in the slot before closing the right clamp. Its almost like you need a magnifying glass to examine the seating of the stick, at least I did.

lol ya iits only got 1 clamp. I found out how finicky they are pretty quick