System instability at 2133MHz

[lordwolveh]

I have two of the following RAM cards running in dual channel:
Kingston DDR3 4GB
KHX2133C11D3/4GX

By default in the BIOS the RAM is at 1600MHz - when I clock it to 2133MHz using an XMP it appears to be all working fine but general system instability is increased, programs and games will crash at random points. Wondering what I can do to fix this?

My motherboard and processor:
Gigabyte F2A88X-D3H
AMD A10-7850K

 

[bootcher]

You can try to increase the ram voltage for more stability.

 

[MarkW]

Lower the speed to 1866 and it should stabilize. There is no real benefit to having memory over 1866 speed anyways. Its all just bragging rights starting at 2133 and up.

 

[bootcher]

For the A10 or other APU's it does make a lot of difference for the integrated graphics speed.

 

[lordwolveh]

Lower the speed to 1866 and it should stabilize. There is no real benefit to having memory over 1866 speed anyways. Its all just bragging rights starting at 2133 and up.

There isn't an XMP option for it, BIOS doesn't seem to have an option for manually setting the clock speed. I'm probably missing something.

 

[MarkW]

Ok. What are the odds that the XMP settings increased the power going to the memory to 1.65 volts? We all know that we probably should not increase the voltage beyond 1.65 volts, right? So this guy gets told to increase the power to his memory sticks. To what? 1.7 volts? I sure hope not.

On the other hand, I suggest reducing the speed by 1 step. 2133 to 1866, and apparently, that's not a good alternative. It might slow down the IGP. By what? 1 FPS? 3 FPS?

You have to look at the whole picture. Think about the consequences of boosting power to something that has a 99% chance of already being at the maximum power recommended for that item. Then figure out the alternatives. Which way is better? Exceed a power recommendation, or step down one notch and keep everything within the recommended power envelopes?

I stand by my recommendation to lower the speed to 1866 to stabilize the system.

 

[Tradesman1]

Look for EOCP to set the DRAM as this is a Gigabyte mobo, might also need a slight increase to the CPU/NB voltage

 

[bootcher]

Ok. What are the odds that the XMP settings increased the power going to the memory to 1.65 volts? We all know that we probably should not increase the voltage beyond 1.65 volts, right? So this guy gets told to increase the power to his memory sticks. To what? 1.7 volts? I sure hope not.

On the other hand, I suggest reducing the speed by 1 step. 2133 to 1866, and apparently, that's not a good alternative. It might slow down the IGP. By what? 1 FPS? 3 FPS?

You have to look at the whole picture. Think about the consequences of boosting power to something that has a 99% chance of already being at the maximum power recommended for that item. Then figure out the alternatives. Which way is better? Exceed a power recommendation, or step down one notch and keep everything within the recommended power envelopes?

I stand by my recommendation to lower the speed to 1866 to stabilize the system.

The APU's have native support for 2133 ram, so decreasing the speed will not help. I think the instability is due to using different kinds of ram. Upping the ram voltage a bit usually helps these problems.

Another solution is to get another identical stick of either ram and use both of the same kind.

 

[Tradesman1]

Ok. What are the odds that the XMP settings increased the power going to the memory to 1.65 volts? We all know that we probably should not increase the voltage beyond 1.65 volts, right? So this guy gets told to increase the power to his memory sticks. To what? 1.7 volts? I sure hope not.

On the other hand, I suggest reducing the speed by 1 step. 2133 to 1866, and apparently, that's not a good alternative. It might slow down the IGP. By what? 1 FPS? 3 FPS?

You have to look at the whole picture. Think about the consequences of boosting power to something that has a 99% chance of already being at the maximum power recommended for that item. Then figure out the alternatives. Which way is better? Exceed a power recommendation, or step down one notch and keep everything within the recommended power envelopes?

I stand by my recommendation to lower the speed to 1866 to stabilize the system.

The APU's have native support for 2133 ram, so decreasing the speed will not help. I think the instability is due to using different kinds of ram. Upping the ram voltage a bit usually helps these problems.

Another solution is to get another identical stick of either ram and use both of the same kind.

_______________

Best bet is a SET of DRAM - that way it's been tested that both sticks play togeter, no guarantees when mixing DRAM from different packages, even of the same exact model