mix match ram

[Killertaker]

Hello everyone. Recently I bought Corsair Vengeance LPX 2x16 GB 3200 MHz. On my current system I had Corsair Vengeance LPX 2x8 GB 3000 MHz. Without, what I believe is called, XMP  enabled, I have 2133 MHz. However, once both sticks are in and enable XMP, the results is a reboot reset of BIOS settings (in other words, XMP disabled).

 

Important: Motherboard is Gigabyte x470 aorus gaming 5 wifi (Manual link  https://download.gigabyte.com/FileList/Manual/mb_manual_x470-aorus-gaming-5-wifi_1002_e_200710.pdf)

 

Some other information: Ryzen 7 2700X, GTX 1060 6GB, and I have a Samsung 860 EVO SSD and a Seagate 7200 RPM HDD. Don't believe any of this information is important but I thought I'd include it just in case.

 

 

I would like to enable XMP, and I am not sure how or if I can. The rams do not have the same clock speeds. I am not the best with BIOS stuff. Please let me know other information that I need to add.

 

 

[Jurrunio]

1 minute ago, Killertaker said:

once both sticks are in and enable XMP

both sticks? you mean both kits? Mixing kits kinda faults the XMP profile on them in terms of stability, which means XMP failing to work is to be expected. You'll have to use a lower frequency, say 2933MHz or even 2800MHz. You can do so by keeping XMP enabled but with manually set "system memory multiplier" to 29.33 for 2933MHz, 28 for 2800MHz and so on. Drop it till it gets stable.

[Killertaker]

5 minutes ago, Jurrunio said:

both sticks? you mean both kits? Mixing kits kinda faults the XMP profile on them in terms of stability, which means XMP failing to work is to be expected. You'll have to use a lower frequency, say 2933MHz or even 2800MHz. You can do so by keeping XMP enabled but with manually set "system memory multiplier" to 29.33 for 2933MHz, 28 for 2800MHz and so on. Drop it till it gets stable.

Hello, I've tried this. For some reason I can't manual set it. I have tried to press enter on the memory multiplier and it would not give me any options but when I did the same on the timings it would give me a manual option. Would you know why it wouldn't let me manually set it? (sorry for the bad picture, in picture i was changing XMP)

[Killertaker]

Forgot to also ask. How would I check for stability? Just boosting? or is there other tests that can be done

[Jurrunio]

35 minutes ago, Killertaker said:

I have tried to press enter on the memory multiplier and it would not give me any option

it wont change from "auto"? try + and - keys

 

33 minutes ago, Killertaker said:

Forgot to also ask. How would I check for stability? Just boosting? or is there other tests that can be done

I'm lazy and go for "if it doesnt crash I'll drop it 1 step (133MHz) further and call it a day" method. Otherwise you could also use prime95 blend test, though this also stress tests the CPU.