I can't make my system run in dual channel mode

[ghostw0w]

I have 2x4gb rams I've checked that my motherboard support them and everything is fine with them, but I cant make them run in dual channel mode

Gpu: EVGA geforce GTX 1050
Motherboard: asrock 970a-g/3.1
Cpu: Amd-fx 8350
Ram: A-data ADATA XPG V2 Series - DDr3 2x4gb

 

[birne]

How do you know it is not running in dual channel?
Try downloading cpuZ and see on the memory tab.
also are you sure you have the memory set in the correct slots? 1st and 3rd, or 2nd and 4th slot look in the motherboard manual

 

[ghostw0w]

I already got cpuz and its telling me its single channel mode, bios tells me same, I have tried every combination on the slots

 

[birne]

not that i dont believe you, but can you post screen capture of cpuz

 

[ghostw0w]

https://gyazo.com/8dfc9f879d2f46594057b753b8081235

 

[ARICH5]

thats single channel ram dimm you bought. not dual channel

 

[ghostw0w]

Can u explain how they are single channel dimm

 

[smorizio]

newest bios on the mb???

 

[ghostw0w]

yes, btw should I disable memory interleaving in the bios?

 

[Phillip Corcoran]

thats single channel ram dimm you bought. not dual channel

There is no such thing as RAM that's only single channel. It's just RAM.

Provided the motherboard supports dual channel, you just need to ensure that you buy a matching pair of RAM modules and that you fit them in the correct pair of slots.

 

[ghostw0w]

thats single channel ram dimm you bought. not dual channel

There is no such thing as RAM that's only single channel. It's just RAM.

Provided the motherboard supports dual channel, you just need to ensure that you buy a matching pair of RAM modules and that you fit them in the correct pair of slots.

I have bought a matching pair and I've put them in A1 B1, doesnt work, A2 B2 doesnt work either, nothing else works

 

[molletts]

Look for a setting called "Unganged mode" in the BIOS. It's an alternative memory configuration recommended by AMD which, as I understand it, uses the two memory controller channels independently.

It may or may not be faster than dual-channel mode in real-world usage: in ganged (classic dual-channel) mode, the channels are used together and can deliver data at twice the rate to one core at a time, but if another core wants access to the memory at the same time, it has to wait. In unganged mode, although data is only delivered at single-channel rate to any one core, if two cores want to access the memory at the same time and the addresses they want are located in different DIMMs, they can both access the memory simultaneously.

So benchmarks will tend to report ganged dual-channel mode as being twice as fast but whether it is faster or slower than unganged mode in actual usage depends on what your system is doing.

 

[ghostw0w]

Look for a setting called "Unganged mode" in the BIOS. It's an alternative memory configuration recommended by AMD which, as I understand it, uses the two memory controller channels independently.

It may or may not be faster than dual-channel mode in real-world usage: in ganged (classic dual-channel) mode, the channels are used together and can deliver data at twice the rate to one core at a time, but if another core wants access to the memory at the same time, it has to wait. In unganged mode, although data is only delivered at single-channel rate to any one core, if two cores want to access the memory at the same time and the addresses they want are located in different DIMMs, they can both access the memory simultaneously.

So benchmarks will tend to report ganged dual-channel mode as being twice as fast but whether it is faster or slower than unganged mode in actual usage depends on what your system is doing.

I cant find ''unganged mode'' is there any name for it? I found bank interleaving and memory interleaving, has that to do with anything?

 

[molletts]

I cant find ''unganged mode'' is there any name for it? I found bank interleaving and memory interleaving, has that to do with anything?

I've had a look at the manual for your board and there doesn't seem to be an option to enable/disable unganged mode. The only option that looks relevant is the "Channel interleaving" option, but that's either "Auto" or "Disabled" - no way to force-enable it.

I assume you've tried different combinations of channel and bank interleaving.

As an aside, from Googling the issue it seems to be quite a common problem with ASRock boards. (I'm not that surprised.) Some people said that clearing the CMOS magically fixed it; for others it made no difference.

 

[ghostw0w]

I cant find ''unganged mode'' is there any name for it? I found bank interleaving and memory interleaving, has that to do with anything?

I've had a look at the manual for your board and there doesn't seem to be an option to enable/disable unganged mode. The only option that looks relevant is the "Channel interleaving" option, but that's either "Auto" or "Disabled" - no way to force-enable it.

I assume you've tried different combinations of channel and bank interleaving.

As an aside, from Googling the issue it seems to be quite a common problem with ASRock boards. (I'm not that surprised.) Some people said that clearing the CMOS magically fixed it; for others it made no difference.

I haven't tried to only disable bank interleaving, should I try?, I tried CMOS didn't make any difference

 

[molletts]

I haven't tried to only disable bank interleaving, should I try?, I tried CMOS didn't make any difference

No harm in trying, although I'll be very surprised if it works as it shouldn't have anything to do with dual-channel mode.

Apart from that, I really can't suggest much else.