Need help with my RAM speed

[Zectorr]

ok guys my DDR3 Ram is 800mhz , but i set the frequency to 1333mhz in bios , i checked on CPU-z and it says 666mhz , do i just times that by 2 and get my frequency? is it ok for the speed to be at 1333, or am i damaging the RAM as it says its frequency is 800mhz on the stick, my CPU is Intel Pentium G3258 (4.4Ghz).

 

[smorizio]

in the bios turn on xmp profile and use profile one. ssve and exit see if the mb and cpu will reset to 800 speed. with ram you x2 the speed. with ram speed you need a mb that will run at x speed and a cpu that has memory controller built for that speed to. the g3258 i think has a 1333 ram speed limit.
http://ark.intel.com/products/82723/Intel-Pentium-Processor-G3258-3M-Cache-3_20-GHz
it does have ddr3 1333 limit so your ram max speed is going to be 666. runnng ram slower then rated wont hurt it.

 

[herrwizo]

DDR = double data rate. 666MHz base clock doubled equals to effective 1333 MHz. If you set it to 800, you *should* get 1600 - unfortunately, Pentium G3258 supports only 1333MHz, so that's max you can go. You are not damaging anything, this is the best you can do with this CPU.

 

[BSOD BSTD]

Yes, this means your RAM is running at 1333Mhz, depending on your motherboard you should be able to get that RAM up to 1600Mhz (2 x 800Mhz), give it a go. After that you can tighten the SPD timings (latencies) to get it running at optimum.

 

[BSOD BSTD]

DDR = double data rate. 666MHz base clock doubled equals to effective 1333 MHz. If you set it to 800, you *should* get 1600 - unfortunately, Pentium G3258 supports only 1333MHz, so that's max you can go. You are not damaging anything, this is the best you can do with this CPU.

Ah, ignore me, if 1333 is max then you're all good

 

[Grimwinder]

You x2 the CPU-Z number, it's showing you the per channel speed, so with dual channel RAM the value is double what it reads. Do you have a make/model number on the RAM? It might be showing you a single channel value as well.

 

[Zectorr]

in the bios turn on xmp profile and use profile one. ssve and exit see if the mb and cpu will reset to 800 speed. with ram you x2 the speed. with ram speed you need a mb that will run at x speed and a cpu that has memory controller built for that speed to. the g3258 i think has a 1333 ram speed limit.
http://ark.intel.com/products/82723/Intel-Pentium-Processor-G3258-3M-Cache-3_20-GHz
it does have ddr3 1333 limit so your ram max speed is going to be 666. runnng ram slower then rated wont hurt it.

My motherboard (MSI H81M P33) does not have xmp profile , so do i just leave the ram at what it is now ?

 

[Zectorr]

You x2 the CPU-Z number, it's showing you the per channel speed, so with dual channel RAM the value is double what it reads. Do you have a make/model number on the RAM? It might be showing you a single channel value as well.

i have the RAM's running in dual channel, as i only have two slots on the Board and it says dual channel in CPU-Z

 

[Tradesman1]

You x2 the CPU-Z number, it's showing you the per channel speed, so with dual channel RAM the value is double what it reads. Do you have a make/model number on the RAM? It might be showing you a single channel value as well.

________________

It's DDR (DOUBLE data rate) so the effective data rate is double the true freq - which is what shows in CPU-Z. The number of channels has nothing to do with the effective advertised data rate, 1600 sticks run at 1600 whether in single, dual, tri or a quad config..

To run 1600 with this CPU will prob take an OC of the CPU and/or increased DRAM/MC voltage