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Is this normal ?

post #1 of 4
Thread Starter 
Hello
I've bought new Pc few days ago and a friend of mine told me to check everything using cpu-z and hw monitor. I checked all of it and one thing seems little wierd in memory tab the DRam Frequency changes constantly between 720 - 830 mhz is this normal with the new Pc's ?
Here the Pic:
post #2 of 4
It's normal, nothing to worry about.. All you need to worry about is the pic all the way to the left.. where it says 800, multiply by two and that's the current RAM frequency - for you it's currently 1600, which is correct assuming you're using 1600 MHz memory.

I wish I could explain what the other screens are showing under JDEC but I'm not very educated on that - I do believe the numbers under JDEC are the different timings that the memory can use if running it at the listed frequencies under "JDEC" - Running the memory at a lower frequency often allows for "tighter" timings which can increase performance more than increasing the frequency of the RAM would alone... Usually a combination of tightening the timings and overclocking the RAM frequency is the way to go about getting the most out of your memory.

Anyway, for now, disregard all but the "DRAM Frequency" and remember to always multiply it by two for the "double data rate" (DDR) RAM.
Edited by GanjaGeek - 9/9/12 at 2:39pm
     
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post #3 of 4
Thread Starter 
Quote:
Originally Posted by GanjaGeek View Post

It's normal, nothing to worry about.. All you need to worry about is the pic all the way to the left.. where it says 800, multiply by two and that's the current RAM frequency - for you it's currently 1600, which is correct assuming you're using 1600 MHz memory.
I wish I could explain what the other screens are showing under JDEC but I'm not very educated on that - I do believe the numbers under JDEC are the different timings that the memory can use if running it at the listed frequencies under "JDEC" - Running the memory at a lower frequency often allows for "tighter" timings which can increase performance more than increasing the frequency of the RAM would alone... Usually a combination of tightening the timings and overclocking the RAM frequency is the way to go about getting the most out of your memory.
Anyway, for now, disregard all but the "DRAM Frequency" and remember to always multiply it by two for the "double data rate" (DDR) RAM.

Thanks for the fast reply, if you say its nothing to worry about its good to hear smile.gif was worried that ill have to send them away. BIG thanks.
post #4 of 4
I would use the XMP profile for the RAM as it drops timings from 11-11-11 to 9-9-9 at the same speed. Which type of G.Skill RAM is it? You may be able to hit 1866 or so, depending upon the model. Also, if you are using an Intel CPU then the speed is generally more important than timings, and the opposite for AMD, though you should try for the highest speed and lowest timings you can get either way.
   
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Z77 Bench-a-lot
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CPUMotherboardGraphicsGraphics
i7 3930K @ 4.92Ghz Asus Rampage 4 Extreme EVGA GTX670 FTW 2GB  EVGA GTX780Ti Classified K|ngp|n Edition @ 1483... 
GraphicsRAMHard DriveHard Drive
EVGA GTX780Ti Classified K|ngp|n Edition @ 1483... 16GB G.Skill Ripjaws-Z @ DDR3-2248 9-10-9-26 1T Samsung 830 256GB SSD WD10EZEX 1TB HDD 
Hard DriveHard DriveHard DriveHard Drive
WD10EALX 1TB HDD Seagate Barracuda 7200.14 1TB WD3200AAKS 320GB HDD WD5000HHTZ 10krpm 500GB VelociRaptor 
Optical DriveCoolingCoolingCooling
LG/Hitachi Slim DVD-R/W Custom MB-Backside VRM-sinks (Copper) 3x NZXT RF-FX140LB 1-2krpm 98.3CFM Case Fans 2x Corsair SP120-PE Case Fans 
CoolingCoolingCoolingCooling
Heatkiller GTX680 "Hole Edition" Block + Backplate XSPC Single-Bay Res (Single 5.25 bay) EK Multioption Res X2 - Advanced 150 DD "Fill-Port Res" + Fill-Port Fitting (Red) 
CoolingCoolingCoolingCooling
2x MCP35X + Heatsinks/80x15mm Fan XSPC EX420 Alphacool NeXXos UT60 240 6x Bgears Blasters 140mm 1800rpm Fans 
CoolingCoolingCoolingOS
4x Koolance 120x25mm 2600rpm Fans Comp/Rotary Fittings (BP/XSPC/Monsoon) Primoflex Pro LRT - White (1/2x3/4) Windows 7 Professional 64bit  
MonitorMonitorMonitorMonitor
Dell P2210Hb 21.5" 1920x1080p Viewsonic VA2012WB 20.1" LCD 1680x1050 Dell U3014 Eizo 27" 1440p 10bit RGB-LED Backlit AH-IPS Panel 
MonitorKeyboardPowerCase
55" LG HDTV (their top 2014 model) Ducky Mechanical (Browns) NZXT HALE90 850W + 8 blown-up AX1200/i's NZXT Switch 810 (White) 
MouseMouse PadAudioAudio
R.A.T.3 + MX510 My Desk GRADO RS1i Headphones Grado PS1000 Headphones 
OtherOtherOtherOther
Bitfenix Hydra Pro Fan Controller 5ch 30W/ch Bitfenix Alchemy Individually-Sleeved Extension... NZXT Individually-Sleeved Front Panel Wires (Bl... Phobya Sleeved 1x3pin-to-4x3pin Fan Splitter 
OtherOtherOther
Sleeved Wires w Paracord myself (no Heatshrink) Custom Front and Top Panels w HexxMesh *In Prog... Working on Custom Pedestal Prototype 
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