question about memory speeds

[blurredvision]

Ok, I've asked this before, and someone nicely answered my question, but I didn't much understand it. I will try to explain this again, and exactly what I'm looking for.

First of all, I have an ABIT KT7-RAID with an 800 T-Bird. I recently purchased a stick of PC133 Mushkin Rev. 1.5 CAS2.

The first question, since the original t-birds run at a 100MHz FSB 'double-pumped' to 200MHz, is my PC133 stick still only running at PC100? If so, I want to know how to overclock it to get the stick running at PC133 specifications. Now here is where I might confuse you. When overclocking the FSB, I of course have a multiplier of 8. As standard, the FSB is set to 100. If I raise it just by 1, would the FSB now be considered as 101, or 108?? If it is considered as 108, then would I have to add 4, to make it 132?? Geeez, I'm starting to confuse myself. heh.

All in all, I just want to run my RAM faster, but I'm not quite sure how. Thanks for any help you can give, or just tell me to shut up if you understand.

 

[AMB]

You can run the memory at PC133

 

[Viperoni]

Dood you're really confused.

The FSB is the communication speed between the ram/chipset/processor
Athlon systems double the FSB speed between the chipset/processor, but dont concern yourself with that.

Now, your FSB is running @ 100mhz stock.
Your multiplier is how many times faster your CPU runs compared to the FSB.
So FSB x multiplier = CPU speed.
Now you have 100 FSB x 8 MULTIPLIER = 800mhz TBird.

SO,
If you boost your FSB to 101, you get:
101 FSB x 8 MULTIPLIER = 808mhz TBird.

Your FSB is whatever you set it at, and totally independant of the multiplier.

Now, to boost yout ram to pc133, in the CPU softmenu (in the BIOS) where you set your bus speeds, etc., near the bottom of the screen it will have a header along the lines of:

"DRAM Clock"
The options you have are: FSB, or FSB + PCI
FSB would get you 100mhz
FSB + PCi would get you 133mhz

But if you boost your FSB to 101, you would get
101 + 33.6 = 137.6

And so on, and so forth.

Hope that helps

 

[blurredvision]

Ok, I think I understand it now. Thanks Viperoni. Much more help than AMB was.:|

 

[AMB]

Grrrrr :Q

Sorry, I had to go, I was going to make a subsequent post, or show you a link.

AMB