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difference between fsb OC'ing and using multipliers?

post #1 of 18
Thread Starter 
I'm really new to OC'ing... I've read that theres those 2 ways to OC, but which one is better. I'm talking about real world prefomance in-game. and also what is HT
post #2 of 18
Quote:
Originally Posted by Kill2Fill View Post
I'm really new to OC'ing... I've read that theres those 2 ways to OC, but which one is better. I'm talking about real world prefomance in-game. and also what is HT
Multipliers are for cheaters , all it does is multiply your current FSB
FSB will give you extra real world performance as long as your RAM is rated for it, otherwise neither will give you any performance other than higher clocks
As for HT im not sure but maybe hyper threading or sumthing, ive ben wondering myself.

For a good OC you need to raise both, look at my sig and click on my E5200 link with the 2 chalkboards next to it, i used a multi of 12.5 AND an FSB of 333 to reach my OC.

Why i say your RAM needs to be rated for it its because a high FSB will d nothing if bottlenecked by RAM, the RAMs' speed needs to match or exced the rated FSB in order to fully utilise it, remember the computer is only as fast as its slowest part.
Edited by Smoblikat - 2/13/11 at 6:50am
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post #3 of 18
There isn't a performance boost, they are basically the same.



If you have a black edition, no point in not using the multiplier to OC.
post #4 of 18
Thread Starter 
i was thinking of getting phenom II X2 555 BE. But how would i know if my ram is rated for it?
post #5 of 18
You can tell what your FSB should be based upon the stock speed of the RAM. If you're completely new to overclocking and don't want to mess with anything but the cpu clock, stick to only increasing the multiplyer.
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post #6 of 18
Thread Starter 
http://www.overclockers.com/forums/s...d.php?t=263753 such a helpful guide do u guys know any other helpful 1s?
post #7 of 18
http://www.overclock.net/amd-cpus/90...l#post11834166

Try this......
good 1 for me when i started...
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post #8 of 18
overclocking the fsb does everything at the same time
ram, ht ect.

you may need to underclock the ht, fsb multi to hit higher cpu speeds
makes it more difficult to tell which one is causing the errors when overclocking fails

overclocking via multiplier just does the cpu
ram, ht ect will stay at the same speeds
post #9 of 18
Thread Starter 
wats HT?
post #10 of 18
Quote:
Originally Posted by The Master Chief View Post
There isn't a performance boost, they are basically the same.
Yes and no to that and what you get will depend on how you go about doing the OC'ing.
Raising the multi alone works as we all know and will get some MHz going but there is a catch - If expecting increases in RAM and other things, you won't get much of it since it's all still at stock settings if you don't tweak it. Of course higher CPU speeds will make things go faster but that's based purely on your CPU's power, all the rest stays the same.

Using the FSB to raise speeds has advantages BUT if you don't know what's involved with raising the bus, you'll kill performance and stability quickly. Knowing how dividers work, how to effectively tweak your RAM and set things up is key to using a FSB based OC.

The best overall way to OC is a mix of both multi and FSB speed. You get the advantages of higher bus and RAM speeds while making the CPU run higher too = You find a working balance between the two methods.

There are limits of course and finding what that balance would be is a matter of trial and error with your particular hardware, just remember no two systems will behave exactly alike even if they are built from the same pieces by name and model.


Quote:
Originally Posted by The Master Chief View Post
If you have a black edition, no point in not using the multiplier to OC.
I agree with this but it's still useful to do a mix of both methods.
I've found with my stuff using a purely multi based OC lets me go high enough but I do better if I lower the muli a little and raise the bus speeds up some. Bear in mind that higher multis used means higher CPU temps since the CPU works harder per MHz gained as these multis are raised.
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