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Asus M5a78L-M/usb3 running at 1333 mhz, but i have 8gb 1600 mhz Kingston HyperX Ram? need help!!!!

Last response: in Memory
February 8, 2014 5:28:35 AM

I had build a custom PC, Asus M5a78L-M/usb3,AMD FX 8150, 8GB 1600mhz Kingston Hyperx Ram, Nvidia 650 Ti, Cooler Master 600 Watt PSU, but in CPU-Z its only showing 667 mhz i.e., 1333mhz as it should be showing 800mhz. i would be very grateful if someone could help me out of this problem.

Best solution

a b } Memory
February 8, 2014 6:46:24 AM

Download the motherboard manual from Asus support.
(page 2-11) Change Memory Clock Mode from [Auto] to [Manual].
(page 2-12) Set Memory Clock Speed to [800MHz].
(page 2-12) Set the first four DRAM Timing numbers.

For example, Kingston KHX1600C9D3K2/8GX

Each module kit has been tested to run at DDR3-1600 at a low
latency timing of 9-9-9-27 at 1.65V. The SPDs are programmed
to JEDEC standard latency DDR3-1333 timing of 9-9-9 at 1.5V.

The DRAM Timings are 9-9-9-27 in this example.

If your memory DRAM Voltage is higher than 1.5v as in the example it is 1.65v, you need to set that option too.

(page 2-12) Memory Over Voltage [1.65]
Save and Exit BIOS
February 8, 2014 10:26:42 AM

it worked!!!!! thanks Calvin7
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