RAM Memory clock is too low?

[flashiling]

Hello, i just purchased 2 Corsair Vengance 16GB 3600 MHz sticks since my 2x8 3200 were causing me to lag when trying to play 1440p ultra in new games such as diablo 4 (my ram useage was at 15.9GB out of 16)

 

However if i check HWinfo64 it shows up as 1700 even though in my bios i set it to 3400. is this just because it's dual memory so if the speed reads 1700 then it's running at the expected 3400? or did i configure something incorrectly.

 

 

 

Thanks for your time  

[RONOTHAN##]

3 minutes ago, flashiling said:

is this just because it's dual memory so if the speed reads 1700 then it's running at the expected 3400?

It's because the RAM is double data rate, so 1700MHz translates into 3400MT/s. 

[flashiling]

7 minutes ago, RONOTHAN## said:

It's because the RAM is double data rate, so 1700MHz translates into 3400MT/s. 

ah ok, if you got time i have another question lingering.

i cannot for the life of me make sense of the "compatability" lists that the vendors provide.

if stuff starts crashing when i try to run them at 3400 could it be that my MSI B450m Gaming Plus cannot handle said speed and should be lowered to 3200?

[191x7]

5 minutes ago, flashiling said:

ah ok, if you got time i have another question lingering.

i cannot for the life of me make sense of the "compatability" lists that the vendors provide.

if stuff starts crashing when i try to run them at 3400 could it be that my MSI B450m Gaming Plus cannot handle said speed and should be lowered to 3200?

Don't set the frequency manually, you have to adjust the timings and voltage too. It's easier just to load XMP, that sets everything.

[flashiling]

2 minutes ago, 191x7 said:

Don't set the frequency manually, you have to adjust the timings and voltage too. It's easier just to load XMP, that sets everything.

alright i'll try to figure out how to do that

[RONOTHAN##]

3 minutes ago, flashiling said:

if stuff starts crashing when i try to run them at 3400 could it be that my MSI B450m Gaming Plus cannot handle said speed and should be lowered to 3200?

Yes. 

 

Those QVLs are a bit overrated IMO. There's some things they're good at, making sure that a particular PCB revision has been tested to work on a particular motherboard for instance, but other information present on there like max frequency is more for marketing reasons than because it should just work (high frequency kits on the QVL will almost never work). 

 

Most daisy chain B450 boards like that one struggle when trying to run 4 DIMMs at the same time, so while the DIMMs might work at 3600+, the board will likely be the limiting factor here. Also, since it's a B450 board, odds are about 50/50 that you're running a Ryzen 2000 series CPU, and those struggle with running memory speeds above 3200 on most motherboards, so you can also be CPU limited here. 

[flashiling]

2 minutes ago, RONOTHAN## said:

Yes. 

 

Those QVLs are a bit overrated IMO. There's some things they're good at, making sure that a particular PCB revision has been tested to work on a particular motherboard for instance, but other information present on there like max frequency is more for marketing reasons than because it should just work (high frequency kits on the QVL will almost never work). 

 

Most daisy chain B450 boards like that one struggle when trying to run 4 DIMMs at the same time, so while the DIMMs might work at 3600+, the board will likely be the limiting factor here. Also, since it's a B450 board, odds are about 50/50 that you're running a Ryzen 2000 series CPU, and those struggle with running memory speeds above 3200 on most motherboards, so you can also be CPU limited here. 

so maybe moving to 3200 instead of 3400 would be a good idea

[RONOTHAN##]

Just now, flashiling said:

so maybe moving to 3200 instead of 3400 would be a good idea

Possibly. If you're having stability issues give that a shot.

 

[191x7]

3 hours ago, flashiling said:

so maybe moving to 3200 instead of 3400 would be a good idea

No. Loading XMP would be a good idea. Or not overclocking at all if you don't know how to do it.

 

3 hours ago, RONOTHAN## said:

Possibly. If you're having stability issues give that a shot.

 

Are you even reading? The OP set 3400 without changing anything else. Meaning with the JEDEC voltage and timings. On 3400. That can't work.

[RONOTHAN##]

4 minutes ago, 191x7 said:

Are you even reading? The OP set 3400 without changing anything else. Meaning with the JEDEC voltage and timings. On 3400. That can't work.

The timings listed in HWInfo were XMP spec, so figured it was a pretty safe assumption that XMP was enabled, since that wouldn't even POST if you're at JEDEC voltage. 

 

Also I have seen some MSI boards just load the XMP voltage and timings for defaults when doing manual RAM tuning, not just scaling JEDEC with 1.2V, so just setting 3600 is effectively enabling XMP. 

[191x7]

1 minute ago, RONOTHAN## said:

The timings listed in HWInfo were XMP spec, so figured it was a pretty safe assumption that XMP was enabled. 

The software can show wrong. Or the motherboard can do some "training". 

 

@flashiling which CPU is it and does the motherboard run the latest Bios?

[RONOTHAN##]

1 minute ago, 191x7 said:

The software can show wrong.

That's pretty rare for that setting to read wrong, it's one of the few software readings I'd actually trust. It's more likely that MSI is just loading the XMP profile by default (again, this is something that some of them do) than it's running at JEDEC.