Andy Burns wrote:
Ed Cryer wrote:

The four are all the same; all 1600MHz, DDR3, 8GB.

Well, theoretically they are fine for that MB.

https://www.corsair.com/uk/en/Categories/Products/Memory/Mainstream-Memory/Corsair-Memory-%E2%80%94-8GB-DDR3-Memory/p/CMV8GX3M1A1600C11


Try a pair of the new ones in the blue slots at the tested speed
of 1333MHzÂ*Â*Â* 9-9-9-24

if that works then all four at that speed.

if that works, try two and finally all four of them
at the XMS speed of 1600MHz 11-11-11-30

I've not used an AMD CPU for years, so I'll take Paul's word for it that
a quad SIMM configuration is tricky.Â* I have no issues with 4x8GB on
"workstation" class intel motherboards.

Thanks for this. This sounds practical.
I shall try them, as you say.
Please explain "9-9-9-24"; and tell me how to set the speed.

Ed