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Downclocking higher voltage RAM?

Luke
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So i know that you shouldn't use ram with different voltages but i have two kingstons sticks, One is a 1.65V 1600Mhz stick and the other is a 1.5V 1333Mhz and i was thinking about running them in dual channel both at 1.5V 1333Mhz which would just be downclocking the 1.65V 1600 stick to 1.5V 1333 to match the other one.

 

Thoughts? I have a feeling it'll work fine but i figured i'd ask. Thanks.

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Should be fine, try and match up the timings too.

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It's fine.

"It pays to keep an open mind, but not so open your brain falls out." - Carl Sagan.

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  • 5 weeks later...
Posted

So i know that you shouldn't use ram with different voltages but i have two kingstons sticks, One is a 1.65V 1600Mhz stick and the other is a 1.5V 1333Mhz and i was thinking about running them in dual channel both at 1.5V 1333Mhz which would just be downclocking the 1.65V 1600 stick to 1.5V 1333 to match the other one.

 

Thoughts? I have a feeling it'll work fine but i figured i'd ask. Thanks.

 

Assuming that the ram is Non-ECC (error-correcting code memory, which is mostly found in servers and workstations) then it will change to the lowest MHz range that they both function with. If you use a program like CPU Z or AIDA64 you can see the ram timings and whichever they both have this will be the operational range.

Included is a screen grab in which the voltage was changed, as this is a "given" i.e. that you are more than capable of addressing this.

You can see that both the different manufacturers' ram operates in differing ranges also that they do not line up exactly even when the MHz frequencies are the same. This is mentioned as ram will find it's own timing and this may not be the 1333MHz range you require.

If they do not have a MHz range where they both can operate then you could find that the computer will not boot, and to fix would be just simply a matter of removing a stick of ram.

 

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