#Incorrect Ram Speed

1 messages · Page 1 of 1 (latest)

spiral saffron
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I have a MotherboardMSI Z790 Tomahawk Wifi DDR5 and Teamgroup Delta RGB 64GB DDR5 6000 CL38 (4x16GB). The Ram speed is showing 4000 in bios not 6000, when I try and change it from auto to 6000 it crashes. Is the motherboard capped at 4000?

plucky nexus
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You’re using 4 sticks

spiral saffron
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Yea?

plucky nexus
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That’s why

spiral saffron
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Explain

plucky nexus
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Ddr5 does not like 4 sticks

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The speed is severely limited

spiral saffron
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So if I were to swap to 2 32s it would change to 6k?

plucky nexus
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Yes

spiral saffron
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Cuz dual lanes

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Well thanks that was easy

plucky nexus
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Yeah

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Ddr4 was much better at 4 sticks

spiral saffron
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Never knew that, so what the lanes are getting backed up?

plucky nexus
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I think it’s because it’s a new technology and the memory controllers aren’t as optimized

spiral saffron
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Alright I'll buy new ram and put in 2 32 cl 38 sticks

plucky nexus
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I would try to get cl30

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It’s lower latency

spiral saffron
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I'll keep that in mind, do 64gb cl30 dual sticks exist?

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Cuz why not overkill

plucky nexus
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2x32GB?

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Yeah

spiral saffron
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No 2x64

plucky nexus
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No

spiral saffron
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Damn

plucky nexus
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The most you can get is 2x48

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But 96GB of ram is completely useless unless you know your workflow requires that much

spiral saffron
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Any ram issues when running dual 48s?

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Like memory issues

plucky nexus
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2 sticks or 2 kits

spiral saffron
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2 sticks

plucky nexus
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I think the 24/48GB memory modules are better at overclocking for some reason

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But it’s gonna basically be the same as 2x16 or 2x32

spiral saffron
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Ah

plucky nexus
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(Except maybe a bit longer to train because it has more capacity)

spiral saffron
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What if i run 4x32 cl30 at 6000, I'm guessing it will go down again even tho it's higher

plucky nexus
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You’ll have the same problem as you have now

spiral saffron
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Figured

plucky nexus
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Why do you want so much ram

spiral saffron
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Workload, loading and I'm trying to just not upgraded 10 years down the line

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One more question, is there a downside to only having a total of 12000 by using 2x32 cl30 6000 ram? Or is it just quicker than 4 because of 2 lanes?

plucky nexus
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Wdym

spiral saffron
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Ok so combined total right now I have 24000 because I have 4x16gb 6000mghz if I go to 2x32 6000 it'll go down to 12000 right? Any downsides to that or?

plucky nexus
plucky nexus
spiral saffron
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6000 MT/s mega transfers per second

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Or does that not matter when totaled?

plucky nexus
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There’s only 2 conventional channels on a consumer cpu

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With 4 sticks, it’s 2 per Channel

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So the bandwidth is split between the 2 sticks in each channel

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Also why 4 sticks is harder on ddr5

spiral saffron
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I figured more channels = better performance when I was building

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So I slotted all 4

plucky nexus
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Yes

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You want 2 sticks

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1 per channel

plucky nexus
spiral saffron
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I think I get what you're saying

plucky nexus
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(1 ddr5 stick is technically 2 channels but there’s still 2 “conventional” channels when compared to ddr4)

spiral saffron
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So ddr5 is faster with 2?

plucky nexus
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For maximum performance, you want all the channels filled with 1 stick

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Yeah 2x ddr5 is faster than 2x ddr4

spiral saffron
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Alright so should I get 4x32 then or just 2x32

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Or just keep 4x16

plucky nexus
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Only use 2 sticks

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Whether it’s 32 or 64 total

spiral saffron
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Copy

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Thanks for helping, I suck at understanding ram

plucky nexus
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Yw