name='redsox38' said:
as some of you guys know i am a newbie with comps. i was wondering what can be overclocked in a compter (what pieces of hardware) and what will it increase. for example if you overclock a processor will the result be higher ghz?
Like fragtek said , a computer can be overclocked on various aspects. The best performance exists when you overclock all the components and achieve a point of stability where your computer runs in harmony day in day out. When you achieve that point , you have successfully overclocked your system without sacrificing your stability and gained maximum value for your money.
When you overclock your cpu , the gain shows up in mhz or ghz ( 1000 mhz = 1 ghz ) . When you overclock your ram , the gain is in mhz. Usually overclocking a ram involved changing more than one setting while with cpu all you need to worry about is voltage and fsb/htt. How to overclock a certain computer depends highly on what components are used to build it. Different types of rams/processors/motherboards require different individual settings to overclock successfully.
Here is an example , you have an AMD 64 Skt 939 3200+ processor , DFI NF4 Ultra-D , 2x512 mb kit of Gskill LE ram and 7600gt in your computer. You wish to overclock it. My advice is to start with the cpu first since its the core of your computer.
Now the default speed of your processor is 2.0 ghz or 2000 mhz. This number is derived by the formula : Multiplier x Fsb/HTT = CPU speed. So in your case , your processor has a multiplier of 10 and the fsb ( or htt as its called on AMD platform ) is 200 , giving you the resultant 2000 mhz of cpu speed. Now Athlon 64 multipliers are upwards locked , which means you cannot increase ur multiplier any higher than 10. Thus the only means for you to increase your cpu speed is to raise your fsb/htt speed. BTW , on A64 the fsb is multiplied by 5 to give you the resultant HTT. Whatever you do , try to keep this number around 1000. Thus if you raise your fsb by 50 mhz , lower your 5 to 4 ( its called LDT multiplier or HTT/LDT ratio) . Now different processors react differently to raising the fsb. Some can take the raise without needing extra voltage and some wont perform at the increased speed no matter how much power you give it.
So now , suppose you start overclocking your system from scratch. The first thing you wanna do is remove all bottlenecks ( meaning stuff that might hinder your overclock ). So you lower the HTT/LDT ratio from 5x to 3x. Then you change your fsb/dram ratio ( this basically means whether the memory will run insync or out-of-sync with your bus speed , 200 mhz or 1:1 means your memory speed is the same as your fsb speed , 166 mhz means or 5:4 means ur ram will run 4/5ths the speed of your fsb and so on ) to 133 mhz which takes the ram speed out of the equation. Then you give your processor about .05 V more( remember to use a quality after-market heatsink ) just to be on the safe side. Then you raise your fsb in 5 mhz steps. So your first bump will be from 200 mhz to 205 mhz , giving you an effective speed of 2050 mhz on your processor. Save those settings in the bios and boot into windows and run a program called Prime95 or OCCT which test your system for stability for about 2 hours. If they dont error out , it generally means your system is decently stable and its time for you to move up in speed. So you go upto 210 mhz and repeat the same steps above. Till a time comes when you are near about 250 mhz. This is the first big step in overclocking. When you reach 250 mhz , run Prime95 overnight to ensure stability. If it fails , keep an eye on your temperature and raise your Vcore ( voltage ) by about .025 V or .05V more. Then again check for stability.
Continue this cycle till you achieve the max out of your processor where you can prime95 stabily for 24+ hours and your cpu temperatures never exceed 50~52C at any point. At the successful completion of this routine , you will have overclocked your processor and gained higher speeds and better performance.
CONGRATS !!! :wavey: