CPU-z shows my 1600mhz RAM at 665.2mhz! how to increase it?

Juanx

Honorable
May 1, 2013
5
0
10,510
well, this is what i have: i5 3570k (6M Cache, up to 3.80 GHz) and 8GB (1 module) of Kingston blu Hyperx at 1600mhz. I know that 665.2 is just the half of the actual frequency but its still far from 1600...

And this is what CPU-Z shows:
Dram Frequency 665.2 mhz
FSB:DRAM 1:5
CAS# Latency (CL) 9.0 clocks
RAS# to CAS# delay 9 clocks
RAS# percharge 9 clocks
Cycle time 24 clocks
Command Rate 1T

thanks a lot!
PD: i dont use this pc for gaming, i do play games but its pretty rare and mosty on vacations, so do i really need the 1600mhz all the time? if i set it to auto (from the BIOS settings) will it change to 1600 when playing?

Thanks a lot! everything can help!
please excuse me for my english!
 

2ply

Honorable
May 11, 2013
7
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10,510
Hello! What kind of motherboard do you have? I'm not sure but if the motherboard doesn't accept 1600DDR3 it might downclock it to 1333? Sometimes at a glance a MB will say it supports 1600 but really it's 1600 OC. I believe that means it will support overclocking 1333 to 1600. This is different than just 1600 stock as some MB do not accept it. I might be really off here but I think thats how it goes. Find out if this 1600ram is compatible with your MB. CPU-z should tell you the model number of your motherboard and if not there is a free program called speccy from the guys who make ccleaner that will tell you the model numbers as well. This is just an idea. Thanks!
 

Juanx

Honorable
May 1, 2013
5
0
10,510


i have a GIGABYTE GA-B75M-HD3 and in the gigabyte page is says: Support for DDR3 1600/1333/1066 MHz memory modules. * To support DDR3 1600 MHz, you must install an Intel 22nm (Ivy Bridge) ((( WICH I HAVE ))) CPU.