Question Memory at 1995 Mhz for 6000mhz ddr5 RAM

[Nova43]

Hi. I have Corsair Vengance DDR5 6000 MHz 64 GB RAM installed in the custom build. (2 packs of the same 2x16GB pack). All 4 of the ram slots are occupied. But, the RAM is running at 1995 MHz. I understand that 6000 MHz speed for my MSI mobo is considered OC. 5600 is non-OC JEDEC standard. Not sure why it's running at 1995 MHz. I have noticed that the PC is sluggish during periods of heavy resource use like when it installs large software or startups high end software like photoshop or when I have 2 things running at the same time and try opening a folder it lags longer than usual before it opens the folder. I have 64 GB (4 x 16GB). What could be causing the RAM to run this low. I mean, if it ran at 4800 MHz, I wouldn't mind. Bios only shows XMP 1 for this RAM. After enabling it, the PC had boot up issues where it would hang at a blank screen or freeze when it's about to show the lock screen. I was not able to fully boot up the PC and use it. I disabled XMP and it just went back to the original 1995 MHz speed. What can I do to increase the speed? Thanks.

 

[Aeacus]

Lowest what DDR5 can run, is 4000 Mhz and this is where your RAM is also at.
Since DDR is Double Data Rate, you need to take the frequency and multiply it by 2, to get the actual effective speed. So, 1995 x 2 = 3990 Mhz ~ 4000 Mhz.

Download and run HWinfo64,
link: https://www.hwinfo.com/download/

Running it in "summary only" would suffice.
Take a screenshot of it and upload it to the net, e.g www.imgur.com and share the pic here.

What i'm interested in, is the "Memory Modules" part of it.
If you have more than one DIMM, you can select between DIMMs within the summary page, where;
#0 = 1st DIMM
#1 = 2nd DIMM
#2 = 3rd DIMM
#3 = 4th DIMM

 

[Bob.B]

Hi. I have Corsair Vengance DDR5 6000 MHz 64 GB RAM installed in the custom build. (2 packs of the same 2x16GB pack). All 4 of the ram slots are occupied. But, the RAM is running at 1995 MHz. I understand that 6000 MHz speed for my MSI mobo is considered OC. 5600 is non-OC JEDEC standard. Not sure why it's running at 1995 MHz. I have noticed that the PC is sluggish during periods of heavy resource use like when it installs large software or startups high end software like photoshop or when I have 2 things running at the same time and try opening a folder it lags longer than usual before it opens the folder. I have 64 GB (4 x 16GB). What could be causing the RAM to run this low. I mean, if it ran at 4800 MHz, I wouldn't mind. Bios only shows XMP 1 for this RAM. After enabling it, the PC had boot up issues where it would hang at a blank screen or freeze when it's about to show the lock screen. I was not able to fully boot up the PC and use it. I disabled XMP and it just went back to the original 1995 MHz speed. What can I do to increase the speed? Thanks.

Look close at the labels on the ram sticks.
Figure out which 2 sticks are a kit.
Use just those 2 sticks in slots a2+b2.
Boot the pc and see what the speed shows then enable xmp and see what the speed shows.

 

[Nova43]

Lowest what DDR5 can run, is 4000 Mhz and this is where your RAM is also at.
Since DDR is Double Data Rate, you need to take the frequency and multiply it by 2, to get the actual effective speed. So, 1995 x 2 = 3990 Mhz ~ 4000 Mhz.

Download and run HWinfo64,
link: https://www.hwinfo.com/download/

Running it in "summary only" would suffice.
Take a screenshot of it and upload it to the net, e.g www.imgur.com and share the pic here.

What i'm interested in, is the "Memory Modules" part of it.
If you have more than one DIMM, you can select between DIMMs within the summary page, where;
#0 = 1st DIMM
#1 = 2nd DIMM
#2 = 3rd DIMM
#3 = 4th DIMM

Here are the screenshots:

https://imgur.com/a/Ew7X991

View: https://imgur.com/a/Ew7X991
Thanks.

 

[Nova43]

Look close at the labels on the ram sticks.
Figure out which 2 sticks are a kit.
Use just those 2 sticks in slots a2+b2.
Boot the pc and see what the speed shows then enable xmp and see what the speed shows.

Shouldn't that be a1 + a2? Thanks.

 

[Aeacus]

According to HWinfo64, all 4x DIMMs are already running at their highest XMP profile of 3000 Mhz (check the "Clock" stats). And since DDR is Double Data Rate, effective speed is 6000 Mhz, as it says on the tin.

I see no problems with RAM frequency here.

I just figured that i looked the wrong part. I'll edit my reply again with proper response.

3rd edit:

Note down the RAM timing values for each profile, that HWinfo64 shows. E.g
Clock 2600, CL 32, RCD 39, RP 39, RAS 84, RC 122, voltage 1.35.

Then go to BIOS and don't use Auto XMP profile, instead select custom profile and put in all the values manually. This sometimes helps when XMP initially doesn't work.
Since your RAM has 5x XMP profiles and 3x JEDEC profiles, trying them all (manually inserting RAM timings + voltage) takes some time.

I suggest starting off from the lowest clock profile (1600) and when it holds and runs fine, try another, faster profile.

Another option is to loosen the timings or reduce frequency of the given profile, to make it stable.
E.g fastest profile timings are:
Clock 3000, CL 36, RCD 44, RP 44, RAS 96, RC 140, voltage 1.35.
While loosened timings for it would be:
Clock 3000, CL 38, RCD 48, RP 48, RAS 98, RC 140, voltage 1.35.
And reduced frequency timings would be:
Clock 2600, CL 36, RCD 44, RP 44, RAS 96, RC 140, voltage 1.35.

 

[Nova43]

According to HWinfo64, all 4x DIMMs are already running at their highest XMP profile of 3000 Mhz (check the "Clock" stats). And since DDR is Double Data Rate, effective speed is 6000 Mhz, as it says on the tin.

I see no problems with RAM frequency here.

I just figured that i looked the wrong part. I'll edit my reply again with proper response.

Ok. Thanks.

 

[Bob.B]

Shouldn't that be a1 + a2? Thanks.

My way is dual channel your way is single channel......your call.

 

[Aeacus]

Ok. Thanks.

Just edited my reply.

My way is dual channel your way is single channel......your call.

DDR5 doesn't have single-channel. 1x DIMM of DDR5 is already dual-channel.

Channel Architecture
DDR4 uses a single 64-bit channel per DIMM. DDR5 introduces a significant change by splitting each DIMM into two independent 32-bit channels. Although each channel is narrower compared to DDR4, the dual-channel design allows DDR5 to handle data more efficiently.

 

[Bob.B]

Just edited my reply.


DDR5 doesn't have single-channel. 1x DIMM of DDR5 is already dual-channel.

Ddr5 is dual channel within the dimm but I think dual channel with the mobo depends on the slots being used.

 

[Nova43]

According to HWinfo64, all 4x DIMMs are already running at their highest XMP profile of 3000 Mhz (check the "Clock" stats). And since DDR is Double Data Rate, effective speed is 6000 Mhz, as it says on the tin.

I see no problems with RAM frequency here.

I just figured that i looked the wrong part. I'll edit my reply again with proper response.

3rd edit:

Note down the RAM timing values for each profile, that HWinfo64 shows. E.g
Clock 2600, CL 32, RCD 39, RP 39, RAS 84, RC 122, voltage 1.35.

Then go to BIOS and don't use Auto XMP profile, instead select custom profile and put in all the values manually. This sometimes helps when XMP initially doesn't work.
Since your RAM has 5x XMP profiles and 3x JEDEC profiles, trying them all (manually inserting RAM timings + voltage) takes some time.

I suggest starting off from the lowest clock profile (1600) and when it holds and runs fine, try another, faster profile.

Another option is to loosen the timings or reduce frequency of the given profile, to make it stable.
E.g fastest profile timings are:
Clock 3000, CL 36, RCD 44, RP 44, RAS 96, RC 140, voltage 1.35.
While loosened timings for it would be:
Clock 3000, CL 38, RCD 48, RP 48, RAS 98, RC 140, voltage 1.35.
And reduced frequency timings would be:
Clock 2600, CL 36, RCD 44, RP 44, RAS 96, RC 140, voltage 1.35.

Ok. I'll try this out tomorrow and report back. Thanks. I appreciate it.