New Memory has made my computer useless

harrisontup

Prominent
Aug 17, 2017
4
0
510
Just built my first desktop about a week ago. ASRock AB350 Pro4, Ryzen 5 1600.

I was running Crucial 8GB 288-Pin DDR4 SDRAM DDR4 2133 (PC4 17000) Desktop Memory Model CT8G4DFS8213 for about a week before realizing I wanted more speed. So I decided go ahead and add Crucial 16GB (2 x 8GB) 288-Pin DDR4 SDRAM DDR4 2133 (PC4 17000) Desktop Memory Model CT2K8G4DFS8213. I realize the model numbers are different but they appear to be exactly the same otherwise so I assume it's just for packaging.

After turning off the computer and inserting the additional 16GB (2x8GB) the computer first turned on only recognizing 16 GB instead of the installed 24GB. So I turned off and reinserted the RAM thinking maybe one of them just didn't go in all the way. I turned on the computer and the monitors were black and the computer just runs for a minute then restarts over and over again. I tried removing the new memory but now not even the original works. I don't know what the heck I've done or how to fix it. Any suggestions?

RAM is sitting in Slots a A1, A2 and B1.
 
Solution


Reset the bios by removing the cmos battery.
Unless all the ram is in the same package ther is always the chance that it doesn't work togheter.
 
Solution
Mixing and matching RAM can be very finicky, even when you choose RAM with the same model. This is why RAM is sold in kits as they are tested to work together. You will also get more problems when you run 3 sticks of RAM in a dual channel memory board. You want to run your RAM in sets of 2.

You should clear the CMOS and just insert the new RAM kit and then sell the 8gb stick on the used market. You don't really need 24gb anyways.
 
So that kit of 16 gb memory is a matched set. Meaning both sticks where made from same sheet of silicone, they were also tested to make sure they work reliably together. Anything outside of that (even getting the exact same model) in zero way guarantees that the ram will work well together.

Best option is to just use the 16gb and hopefully be able to sell the 8gb for a few bucks.

As stated, you also only want to run an even number of ram chips, 3 is the worst number to use.

Also as a side point, you are not adding speed, you are adding capacity. That ddr4-2133 number is the speed of the memory, meaning it can transfer a theoretical max of 2133 mHz or 2.133 gpbs.
 

harrisontup

Prominent
Aug 17, 2017
4
0
510
Gotcha. Computer is used for rendering mostly which just bogs down the whole computer. The thought was just to give it some extra room to breathe
I'll try resetting and just do 16GB.
 


That doesn't sound like enough for a hard reset. Did you also remove the plug from the psu and press the power button for a few seconds after it was off and unplugged?

Did you turn the PC on when the jumper was moved and see what it said?

Did your BIOS time and settings change?