Corsair Vengeance RGB Pro issue

Chris_P · 26 May 2022 at 14:42

Hi folks, I've searched the forum but can't find an answer to this (I've looked elsewhere as well but getting nadda).

I've recently upgraded my very old 13 year system (intel i5 750) to a nice shiny AMD 5600X and Asus B550-F Gaming motherboard. For the ram I chose Corsair Vengeance RGB Pro (2x8GB) 3600MHz (Nanya chips) kit and purchased 2 of them to give me 32GB of ram.
Now the issue comes when I install all for Dimms. The system becomes very unstable, BSOD, random restarts and files being corrupted. Someone suggested it could be the ProcODT settings, which I played with but it made very little difference.
Things I've tried:
I've tried both sets of ram (16GB) by themselves and they are stable.
Updated the bios.
Reset the bios.
Tried XMP off.

What else can I try before I give up and replace with a 32GB kit??

Brizzles · 26 May 2022 at 17:24

Increase the VDIMM voltage to 1.4

Enable XMP

You may need to adjust your SOC voltage also, but just try above first.

Don't touch ProcODT voltages and the others ( RTT-Nom/Park CadBus etc ) until you are happy you are stable - Let AUTO sort them out

4 x 8 are harder to run than 2 x 16, it can take some extra work.

Chris_P · 26 May 2022 at 21:55

Hey Brizzles,

I enabled XMP and increased the VDIMM voltage to 1.4.
I ran Memtest86 to see if it was stable and on test 8 i started to get errors. Ran again with just 2 dimms and it runs fine.

Brizzles · 26 May 2022 at 22:09

Then you'll need to start experimenting with the SOC voltage to help get it stable.

It may need to be higher, it may need to be lower - it varies from chip to chip.

950mv - 1100mv is the range i would suggest

Chris_P · 26 May 2022 at 22:13

Thanks Brizzles, I'll have a look at that in the morning and let you know how I get on.
I really appreciate the help

Chris_P · 27 May 2022 at 11:30

So I've spent this this morning changing the SOC voltages from the bios original 1.1000mv down to 0.9500 in small increments. I even tried up to 1.1250 and still getting errors in memtest86 on test 8.
1.1000 gave the best results out of all the tests I ran.

Brizzles · 27 May 2022 at 14:45

There are other voltages, tweaks etc you could try BUT you are delving deeper into the rabbit hole and it will take a lot of time and testing, and still may not work.

My advice would be to cut your losses and go 2 x 16 ( if you need 32GB ) or pick up a dummy set ( no ram-just the identical looking rgb sticks ) if you are filling 4 dimms for cosmetic reasons.

I've got 4 x 8gb working on my 3900X, but is took 3 different sets to get there Corsair, GSKill then finally Crucial Ballistix. But i couldn't guarantee they would work with your chip/mobo.

bloodiedathame · 27 May 2022 at 14:51

Funnily enough, I had the same issues running two 32GB kits. Ended up buying a 64GB matched kit and it's been fine since. I didn't try very hard to get it sorted, I must admit.

Chris_P · 27 May 2022 at 15:46

Thanks for the help Brizzles, I'd kinda given up and thought about getting a 32GB set and cutting my losses on the ones I have but thought I'd at least give it another shot before I do that.
Gone are the days of DDR2 when a few tweaks could give decent overclocks and the ram was less finicky about optimised matching dimms. If I'd kept up with things I'd probably go down the rabbit hole but i haven't and my partner uses the system for editing video's so it needs to be running and stable, not me messing around with settings that could potentially break the pc.

Wing-Man · 29 May 2022 at 11:45

not all memory controllers like 4 stick..

do you get errors at SPD setting (none XMP). if you do test one stick at a time and use all 4 slots to test. if no errors its the CPU

Chris_P · 29 May 2022 at 16:06

If I use 1 stick or 2, either SPD or XMP I get no errors, only when 4 sticks are used. I've checked this on both sets.

I did have a look on the Asus site for recommended memory and although I copied the ram I wanted from there to Google to find vendors I've ended up with ram not on that list. Lesson there is to double check in future.

Wing-Man · 29 May 2022 at 16:08

What the asus site says means nothing the memory controller is on the cpu. That’s why I said it could be a cpu problem

Wing-Man · 29 May 2022 at 16:10

When you say you tried 1 stick and 2 did you test in both sets of ram slots to test both channels

Chris_P · 29 May 2022 at 16:11

But surely the list of recommended ram on the Asus site would be the same as AMD's list. I was under the impression that not all memory works well with AMD especially with regards to the infinity cache. Is this wrong?

Wing-Man · 29 May 2022 at 16:13

Chris_P said:
But surely the list of recommended ram on the Asus site would be the same as AMD's list. I was under the impression that not all memory works well with AMD especially with regards to the infinity cache. Is this wrong?

But if you have a faulty memory controller on the cpu the list means nothing. That’s why I said test all ram slots with all sticks if everything passes then the only think left is the memory controller on the cpu

Chris_P · 29 May 2022 at 16:15

On the board I have you need to populate the ram slots furthest from the cpu (A2 and B2), putting ram in just A1 and/or B1 flags up a ram issue but this is noted in the manual as well, so it's a known issue/thing

Wing-Man · 29 May 2022 at 16:20

Chris_P said:
On the board I have you need to populate the ram slots furthest from the cpu (A2 and B2), putting ram in just A1 and/or B1 flags up a ram issue but this is noted in the manual as well, so it's a known issue/thing

Ok have you tested with kit 1 and kit 2 in both slot sets? And was the memory error on the same channel/slot no matter what stick was in the channel/slot. That would indicate a bad slot or channel if you have a bad slot motherboard rma if you have a bad channel then it’s the cpu you need to rma

If both kits pass tests in when used on there own the rams not at fault.