1866mhz RAM with OC 1600mhz RAM to 1866mhz. Will it work??

[Sh4rps]

I want to upgrade my ram from 2X4gb to 4X4gb. I can buy 2x4gb 1866mhz ram for alot cheaper than 2x4gb 1600mhz ram..will it work if i put the 1866 with 1600 when i oc the 1600 to 1866 without any issues

 

[shrapnel_indie]

There is no guarantee. It may work, but it may not. Using 2 sticks of RAM on the same channel will change the electrical characteristics of the channel enough that if the RAM has no issues working side by side at the 1600 speed, the 1600 ram might not want to overclock as fast as it could otherwise... even to the point of not being able to overclock at all. Without knowing more about the RAM, the best (and it may still be the best, even knowing the RAM, MoBo, and CPU involved) I can say is, you have better chances running both at 1600 than overclocking to 1866.

 

[Sh4rps]

MoBo: MSI 970a-g43
RAM: 1600mhz Adata XPG Cas 11
RAM: 1866mhz Adata XPG Cas 11(RAM i want to add)
CPU: AMD fx-4350

This is my current setup.

 

[shrapnel_indie]

MoBo: MSI 970a-g43
RAM: 1600mhz Adata XPG Cas 11
RAM: 1866mhz Adata XPG Cas 11(RAM i want to add)
CPU: AMD fx-4350

This is my current setup.

Brand and model series of RAM improve chances some... IF it's going to happen though it probably won't be at CAS11 settings... Maybe CAS12 or 13... I could be wrong and if it did work, it could be at CAS11, depending how tight the timings are.

Still cannot 100% guarantee it to work.

 

[Sh4rps]

MoBo: MSI 970a-g43
RAM: 1600mhz Adata XPG Cas 11
RAM: 1866mhz Adata XPG Cas 11(RAM i want to add)
CPU: AMD fx-4350

This is my current setup.

Brand and model series of RAM improve chances some... IF it's going to happen though it probably won't be at CAS11 settings... Maybe CAS12 or 13... I could be wrong and if it did work, it could be at CAS11, depending how tight the timings are.

Still cannot 100% guarantee it to work.[/quotemsg The timings on both sets of RAM are the exact same...soooo this should work??

 

[shrapnel_indie]

MoBo: MSI 970a-g43
RAM: 1600mhz Adata XPG Cas 11
RAM: 1866mhz Adata XPG Cas 11(RAM i want to add)
CPU: AMD fx-4350

This is my current setup.

Brand and model series of RAM improve chances some... IF it's going to happen though it probably won't be at CAS11 settings... Maybe CAS12 or 13... I could be wrong and if it did work, it could be at CAS11, depending how tight the timings are.

Still cannot 100% guarantee it to work.

The timings on both sets of RAM are the exact same...soooo this should work??

While they may be the same timing (CAS) they are not the same speed. However they should work at that timing at the slower speed. But, moving to a faster speed the slower RAM with the same CAS timings may actually force both sets to run at slower/higher CAS timings so it can work. (The higher the CAS number, the slower it is.)