Dual channel memory issue. B2 slot.

[Payday]

Hi, I have just put together a 

Asrock b450m pro4

Asus rog strix radeon rtx 570

Ryzen 5 3600

Viper patriot ddr4 3200 16gb (2x8gb)

Corsair 450w bronze 80plus cv450 psu

 

Hardware installation went fine, however upon boot an issue popped up during boot pmu memory training dimm 0

 

Ram installed into a2 and b2 slots.

Only 8gb recognised by bios and windows, cpuz sees 16gb.

 

Only way I have found to fix it is use single channel a1 a2 to get 16gb recognised in windows/bios

 

I rechecked the cpu pins, all perfect, stock fan wasnt too tight.

 

Anyway I can check if this is cpu, mobo or ram?so I can send back the correct part to the distributor? Many thanks.

 

Ps

 

I have not touched the bios from stock however I did instal amd4 chipset driver package from amd website.

[Argeddion]

Swap the sticks around and see if both sticks work in a2. This will eliminate the RAM as problem source. For mobo vs CPU I dont know a solution other than replace the CPU/mobo

[Payday]

Yeah swapped them round and b2 was unrecognised still, both ram sticks work in a1 a2 as single channel

[Guest]

You want to try a different cpu. 

Do you have a local friend or perhaps a PC shop that could lend you a cpu to experiment with?

[Payday]

Kinda hard with the rona right now. Any diagnostic tools able to test the dimm slots?

[Argeddion]

You could try to run it in a1 b1 and see if dual channel works. This wont help diagnosing anything, but it might fix your problem for the moment

[Guest]

11 minutes ago, Payday said:

Kinda hard with the rona right now. Any diagnostic tools able to test the dimm slots?

Well not really. 

That's why you use a processor from a system that's known able to be running dual channel. 

If the other cpu can run dual channel, the IMC took a crap on your chip.

If the system continues the issue, the memory slots on the board are the issue.

 

And if you had to buy a "tool" to diagnose the board and it cost 75$, you could always just get a 200ge online for that price. I have one for diagnostics (originally purchased just to max OC) and it's really nice to have laying around because it also has integrated graphics in case I come across a gpu issue......

 

Other than that, it's either the cpu or mainboard.

[Payday]

Dang. Would the best bet be then shipping cpu and mobo back to the supplier if they have a "faulty" returns policy where they check and replace or reship back of not fault then i guess.