troubleshoot RAM speed wont change

[D2Wavvy]

So when I initially built my PC, I put two 8GB of Crucial Ballistix for 16GB of RAM. I later then purchased the exact same kit so I added 16GB more to make it 32GB of RAM total. Now I want to increase the speed from 2133MHz to 3600MHz however I'm having a lot of trouble doing that. Every time I go into BIOS to enable XMP, it says that it's enabled but the speed hasn't changed. I updated to the latest BIOS, updated my AMD chipsets, and I even reseted the CMOS. Still cant increase the speed. I even switched the slots for each pair of RAM sticks (keeping the pairs together in which I bought them). I checked my motherboard's capability with the RAM and it cleared. I don't know where to go from here.

 

Motherboard: MSI B550 A-PRO

CPU: Ryzen 5 3600

RAM: Crucial Ballistix 3600 MHz DDR4 DRAM (4x8gb)

[4b33r]

Just change the speed and the timings manually, if you put in the part number of your RAM into google it should lead you to a spec sheet where it shows the default and XMP profile timings, speed and voltage.

[D2Wavvy]

11 hours ago, 4b33r said:

Just change the speed and the timings manually, if you put in the part number of your RAM into google it should lead you to a spec sheet where it shows the default and XMP profile timings, speed and voltage.

The only reason I havent done it manually yet is because the last time I did that, I didnt get POST. Multiple times. However, that was when I only had 16gbs of RAM. I dont know if itll be different this time around. Also, I never touched the timings or voltage

[4b33r]

1 hour ago, D2Wavvy said:

The only reason I havent done it manually yet is because the last time I did that, I didnt get POST. Multiple times. However, that was when I only had 16gbs of RAM. I dont know if itll be different this time around. Also, I never touched the timings or voltage

Only change the CAS latency, Trcd, Trp and Tras.
Leave everything else to auto, when you start your PC it will reboot a couple of times, give it anywhere from 2-15 minutes and let it reboot, it will be training the memory and trying to figure out the rest of the timings.

[D2Wavvy]

**UPDATE:

I tested each pair of sticks and the first pair was as advertised, 3600MHz 16-18-18-38 @ 1.35V. The second pair was advertised the same however I came to find out, it wasn't true to the specs. Bios showed the second pair as, 3600MHz 18-22-22-42 @ 1.2V. So I adjusted the timings to the second pair and the voltage to the first. After those adjustments, boom.. I'm running 3600MHz 4 of 4 DIMM slots.

 

To the Newegg Seller that I bought the second pair from: Shame on you!!

 

Thanks to everyone who contributed to my post and suggested helpful things! I learned a lot!

 

[4b33r]

2 hours ago, D2Wavvy said:

**UPDATE:

I tested each pair of sticks and the first pair was as advertised, 3600MHz 16-18-18-38 @ 1.35V. The second pair was advertised the same however I came to find out, it wasn't true to the specs. Bios showed the second pair as, 3600MHz 18-22-22-42 @ 1.2V. So I adjusted the timings to the second pair and the voltage to the first. After those adjustments, boom.. I'm running 3600MHz 4 of 4 DIMM slots.

 

To the Newegg Seller that I bought the second pair from: Shame on you!!

 

Thanks to everyone who contributed to my post and suggested helpful things! I learned a lot!

 

The second pair was just running at the 1.2v non XMP profile, if you have now set the voltage to 1.35v set them all to the faster 16-18-18-38  timing, should work.

[Mark Kaine]

the timings should be on a sticker on the ram, i somehow doubt they sold you the wrong ram - although it's possible of course. 

[Mark Kaine]

1 hour ago, 4b33r said:

if you have now set the voltage to 1.35

btw 2 different motherboards,  3 different ram kits: will not post with xmp at 1.35, will post no problem at 1.36 however...

 

 

sometimes the board would set it to 1.36 automatically,  sometimes not, so i just set it manually now...