A1 B1 XMP??

[RxFX]

On my Gigabyte b550 gaming x v2 mobo i recently upgrading my ram and after turning xmp on the pc would reboot multiple times and after it finally posted the ram wouldnt be running at the xmp speed . I got it to work one time right after a bios update but cant again . swapped channels to a2 b2 and it works fine and apparently this is normal for amd mobos?? is this true or could it be a faulty mobo , ram or even cpu? And if this is true why is it like this and does it mean it wouldnt work if i had all dimm slots full?

 

[daveybrat]

What brand and speed is the DDR4?

Are you trying to use just two or all four slots?

 

[RxFX]

What brand and speed is the DDR4?

Are you trying to use just two or all four slots?

Netac Shadow Ram default 2666mhz xmp to 3200mhz as i have r5 4600g . 2x16gb sticks but im asking 1 because it was annoying to deal with last few days and 2 just for the sake of knowing if i wanna upgrade in the future to 4 sticks

 

[RxFX]

Netac Shadow Ram default 2666mhz xmp to 3200mhz as i have r5 4600g . 2x16gb sticks but im asking 1 because it was annoying to deal with last few days and 2 just for the sake of knowing if i wanna upgrade in the future to 4 sticks

Also to get advice that this is probably normal and not a faulty hardware issue

 

[daveybrat]

Can you post a link to the exact kit of ram you bought? I've never heard of Netac ram before and i've seen almost every brand.

 

[RxFX]

Shadow II DDR4 Black-Netac

Shadow II DDR4 Black <div class="prosize"> <span>32GB(16GB*2)</span> <span>16GB(8GB*2)</span> <span>16GB</span> <span>8GB</span> </div> <p> High-quality Original Chips<br> Aluminum Texture Design<br> XMP2.0 Support </p>

www.netac.com

I believe this is the same one as mine I brought it off Amazon though .

 

[VirtualLarry]

For two sticks of identical DDR4 on a 4-DIMM AM4 DDR4 mobo, generally you place the DIMMs into slots 2 and 4. (A2 B2?)

 

[RxFX]

For two sticks of identical DDR4 on a 4-DIMM AM4 DDR4 mobo, generally you place the DIMMs into slots 2 and 4. (A2 B2?)

Yea it did fix my issues from before .

But is it normal for there to be issues if u place it in slot 1 and 3?

 

[VirtualLarry]

Yea it did fix my issues from before .

But is it normal for there to be issues if u place it in slot 1 and 3?

Yes, there can be issues, if you fill A1 and B1, rather than A2 and B2. It has to do with "ringing" and signal termination.

 

[RxFX]

Yes, there can be issues, if you fill A1 and B1, rather than A2 and B2. It has to do with "ringing" and signal termination.

Ohhh thanks that makes more sense I probably don’t need to know all those technical things too advanced for me . But just for the future, would be any issues filling out all the slots because of this because I read in some places there may be . And if there are is there a workaround?

Thanks

 

[Justinus]

This isn't just an AM4 quirk. Every platform I've used in the last decade (as far as I can be bothered to remember dimm layout) has been this way, even x99 with 8 slots/4 channels was the slot away from the CPU in each channel.

 

[BoomerD]

Going back at least to 1155, A2/B2 has been the norm. It seems...counter-intuiative...why wouldn't you the #1 slots for each? But that's the way every board I've built with for more than 10 years has been. (I don't remember how earlier boards were configured)