Question Problem booting after adding 2 new sticks of ram

[iKeepItRealDaily]

Hello, I have been running 32GB of DDR5 Dominator RAM, but when I bought my system it came with 64 GB(16x4). I removed 32 GB the first 2 weeks of having my system (about a year ago) trying to diagnose a problem with Unreal Engine 4. Since then, I have just been running on 32GB.

Today I decided to add back the other 2 sticks of RAM to get me back up to 64GB. After I did, my computer wouldn't boot and I kept getting a bunch of Q-codes (a lot of them.) If I take out the two sticks I added, everything boots up fine, When I add them back it's the same issue again. I switch the 2 new sticks around (leaving the original two in the same place) and I get the same errors. I take the two new sticks back out, No issues. When all 4 sticks are in, the RGB on all of them light up just fine. (If that means anything?)

Does anybody have any advice to help me figure out whats going on? Or atleast narrow down which stick it is? Or which port? Or (hopefully) if they are just not seating correctly? Should I have changed some setting somewhere to make the other two sticks work? I obviously have no idea what I'm doing. I am running MemTest86 right now though, although I don't know that it will give me any usable info. Im 90% done with pass 2, no errors so far. Although I did just notice that next to RAM info at the end it says 40-40-40-77. Does that mean anything important?

Comp specs
i9 12900
GEFORCE RTX 3080
ASUS Formula Mother Board
32GB DDR5 6000 Dominator Ram 2x16 (hopefully 4x16 soon)
PSU - ASUS ROG - I cant remember the rest, but its plenty, 1000+ watts

Some of the q codes
28
4C
31
34
66
79
36
42
7f
6b
38
Maybe 78?



Thanks!

 

[RealBeast]

Hello, I have been running 32GB of DDR5 Dominator RAM, but when I bought my system it came with 64 GB(16x4). I removed 32 GB the first 2 weeks of having my system (about a year ago) trying to diagnose a problem with Unreal Engine 4. Since then, I have just been running on 32GB.

Today I decided to add back the other 2 sticks of RAM to get me back up to 64GB. After I did, my computer wouldn't boot and I kept getting a bunch of Q-codes (a lot of them.) If I take out the two sticks I added, everything boots up fine, When I add them back it's the same issue again. I switch the 2 new sticks around (leaving the original two in the same place) and I get the same errors. I take the two new sticks back out, No issues. When all 4 sticks are in, the RGB on all of them light up just fine. (If that means anything?)

Does anybody have any advice to help me figure out whats going on? Or atleast narrow down which stick it is? Or which port? Or (hopefully) if they are just not seating correctly? Should I have changed some setting somewhere to make the other two sticks work? I obviously have no idea what I'm doing. I am running MemTest86 right now though, although I don't know that it will give me any usable info. Im 90% done with pass 2, no errors so far. Although I did just notice that next to RAM info at the end it says 40-40-40-77. Does that mean anything important?

Comp specs
i9 12900
GEFORCE RTX 3080
ASUS Formula Mother Board
32GB DDR5 6000 Dominator Ram 2x16 (hopefully 4x16 soon)
PSU - ASUS ROG - I cant remember the rest, but its plenty, 1000+ watts

Some of the q codes
28
4C
31
34
66
79
36
42
7f
6b
38
Maybe 78?



Thanks!

So yeah, I will assume that the memory is compatible and was running fine as a set of 4. Did you try shutting down adding the two sticks back, clearing the CMOS and then restarting?
40-40-40-70 is your memory timing. I'd need the exact memory model to know if those are correct or as tight as you can run the set, but those are within the range for that memory.
If that fails, try swapping out the 2 current running sticks and memtesting the pair that has been not used recently.