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DDR3 1600mhz only running at 800mhz in CPU-Z

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January 15, 2010 10:56:07 PM

Hello,

The RAM I own (OCZ Gold) is advertised to run at 1600mhz w/ 8-8-8-24 timings. I have set the RAM to 1600mhz in BIOS, but when I look the DRAM Frequency in CPU-Z it shows it only running at 800mhz.

CPU-Z settings under Memory.

DRAM Frequency - 800mhz
FSB:D RAM - 2:8

It has my timings correct at 8-8-8-24 so I won't post those.

Row refresh cycle time (tRFC) - 88 clocks
Command Rate - 1T

I'm a little sketchy on the settings other than DRAM Frequency, and to me it looks like the RAM that I set in BIOS to run at 1600mhz is only running at 800mhz. What is going on here?

Thanks

-J

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a b } Memory
a c 78 à CPUs
January 16, 2010 2:14:34 AM

Don't worry... :)  Your RAM is running at 1600Mhz.

1) You set the timings in the BIOS, so no matter what a Windows program reads it, it is running at the BIOS speed.
2) In CPU-Z, you have to times your RAM frequency by two to get the actual speed. It is taking into account the multiplier, so it only shows it as half.
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January 16, 2010 2:50:47 AM

Thanks!
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October 5, 2010 8:05:09 PM

If I plug my 1600mhz ram into the 1666+ slots can I over clock it to 1666mhz?
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!